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16. Troubleshooting Guide

Contents

1. REF PART NAME amp DESCRIPTION QTY CU E7NKE CU E9NKE REMARK 1 CHASSIS COMPLETE 1 CWD50K2073 2 SOUND PROOF MATERIAL 1 CWG302447 CWG302292 3 FAN MOTOR BRACKET 1 CWD541089 4 SCREW FAN MOTOR BRACKET 2 CWH551217 5 1 CWA951720 CWA951721 o 6 SCREW FAN MOTOR MOUNT 4 CWH55252J 7 PROPELLER FAN ASSY 1 CWH03K1010 8 NUT PROPELLER FAN 1 CWH56053J 9 COMPRESSOR 1 5RS092XCD21 5RS102XBC21 o 10 ANTI VIBRATION BUSHING 3 CWH50077 11 NUT COMPRESSOR MOUNT 3 CWH56000J 12 CONDENSER 1 CWB32C2985 CWB32C2448 13 TUBE ASSY CO CAP CHK VALVE 1 CWT01C5305 CWT01C4850 14 DISCHARGE MUFFLER 1 CWB121010 15 HOLDER COUPLING 1 CWH351023 16 2 WAYS VALVE LIQUID 1 CWB021559 CWB021457 17 3 WAY VALVE GAS 1 CWB011374 19 1 G0C193J00002 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151172 23 SOUND PROOF MATERIAL 1 CWG302443 CWG302293 24 SENSOR CO COMP TEMP 1 CWAS0C2205 25 CONTROL BOARD COVER TOP 1 CWH131264 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6653R CWAT73C6655R o 27 TERMINAL BOARD ASSY 1 CWA28K1110J o 28 CABINET SIDE PLATE CO RIGHT 1 CWE04C1116 29 SENSOR AND 1 CWA50C2764 o 30 CABINET SIDE PLATE LEFT 1 CWE041248A 31 CABINET FRONT PLATE 1 CWE06C1039 3
2. 5 4 3 2 1 0 1 2 3 4 5 Outdoor Air Temperature C 167 6 Heating Characteristic at Different Piping Length e Piping Length Characteristic Condition Indoor temperature 20 7 6 Remote condition High fan speed Heat 30 C Comp Hz Fr e 230 36 900 36 800 36 700 Outlet Air Temperature C 36 600 fast eS ee eee 9 10 11 12 13 14 15 16 17 18 49 20 w A o Piping Length m 5 840 5 820 N 5 800 5 780 y 5 760 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 49 20 Heating Capacity kW Piping Length m 2 800 2 795 2 790 2 785 2 780 Gas Side Piping Pressure MPa 2 775 2 770 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 49 20 Piping Length m 6 910 6 900 6 890 6 880 52 6 870 EE 3 4 5 6 7 9 10 11 12 13 14 15 16 17 18 49 20 Current A Piping Length m 168 18 1 9 CU E21NKE Cooling Characteristic at Different Outdoor Air Temperature e Cooling Characteristic Condition Indoor temperature 27 19 C Remote condition High fan speed Cool 16 C Comp Hz 230 16 200 15 700 15 200
3. me il TAR DN f NO li NN NN AA I 2 m ll li mi NM NM 5 Note The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts 188 REF PART NAME amp DESCRIPTION QTY CU E18NKE CU E21NKE REMARK 1 CHASSIS COMPLETE 1 CWD52K1261 2 ANTI VIBRATION BUSHING 3 CWH50077 3 COMPRESSOR 1 5RD132XBA21 lt o 4 NUT COMPRESSOR MOUNT 3 CWH56000J 5 SOUND PROOF MATERIAL 1 CWG302629 6 1 CWD541153 7 1 ARW8401AC lt o 8 SCREW FAN MOTOR BRACKET 2 CWH551217 9 SCREW MOTOR 4 CWH551106J 10 FAN ASSY 1 CWHO03K1065 11 NUT PROPELLER 1 CWH56053J 12 CONDENSER 1 CWB32C3369 CWB32C3371 14 EXPANSION VALVE 1 CWB051016J 15 4 WAYS VALVE 1 CWB001026J lt o 18 HOLDER COUPLING 1 CWH351056 19 3 WAY VALVE GAS 1 11361 20 2 WAYS VALVE LIQUID 1 CWB021292 lt o 22 SOUND PROOF BOARD 1 CWH151257 23 TERMINAL COVER 1 CWH171039A 24 NUT TERMINAL COVER 1 CWH7080300J 25
4. 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Cooling Capacity kW Piping Length m 0 940 0 930 P ae 9 9 0920 Be 29 0 910 0 900 __ 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m 6 630 N 6 620 6 610 Current A 6 600 6 590 1 4 2 4 6 580 PT Pre 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m 166 Heating Characteristic at Different Outdoor Air Temperature e Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fh 40 000 230 38 000 36 000 34 000 Outlet Air Tempeature C 32 000 dT 30 000 5 4 3 2 1 0 1 2 3 4 5 Outdoor Air Temperature C 6 600 6 6 100 5 600 5 100 Heating Capacity kW 4 600 4 100 deese m 5 4 3 2 4 0 1 2 3 4 5 Outdoor Air Temperature C 7 200 6 6 700 Current A 6 200 5 700 5 4 3 2 4 0 1 2 3 4 5 Outdoor Air Temperature C 2 900 6 2 800 2 700 2 600 2 500 Gas Side Piping Pressure MPa 2 400 2 300 eae 2 200
5. All parts supplied from Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock 185 19 2 2 gt CU E12NKE CU E15NKE 2 e Bs ANN Z 7 42 2 lt 3 7 q S wawan wwa q cq 186 The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note REF PART NAME amp DESCRIPTION QTY CU E12NKE CU E15NKE REMARK 1 CHASSIS COMPLETE 1 CWD52K1277 2 SOUND PROOF MATERIAL 1 CWG302719 3 1 CWD541167 4 SCREW FAN MOTOR BRACKET 2 CWH551217 lt 5 FAN MOTOR 1 56411 CWA951830 o 6 SCREW FAN MOTOR MOUNT 4 CWH55252J 7 PROPELLER FAN ASSY 1 CWH03K1066 8 NUT PROPELLER 1 CWH56053J 9 COMPRESSOR 1 5RS102XNA21 10 ANTI BUSHING 3 CWH50077 11 NUT COMPRESSOR MOUNT 3 CWH56000J 12 CONDENSER 1 CWB32C3293 CWB32C3388 13 TUBE ASSY CO CAP CHK VALVE 1 CWT01C5990 CWT01C5985 14 DISCHARGE MUFFLER 1 CWB121010 15 HOLDER COUPLING 1 CWH351023 16 2 WAYS VALVE LIQUID 1 CWB021400 CWB021457 17 3 WAY VALVE GAS 1 CWB011374 CWB011367
6. 6 400 3 4 5 6 7 8 9 10 Piping Length m 152 18 15 7 3 e Cooling Characteristic Condition Indoor temperature 27 19 C Remote condition High fan speed Cool 16 C Comp Hz e 230 19 600 _ 19 100 45 5 9 18 600 5 18 100 17 600 LLC 5 7 9 11 13 15 17 49 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 2 500 Bia ll _ 2 300 2100 og 1 900 1 700 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 2 600 2 100 o EZ 5x 1 600 4400 C 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 1 190 1 090 ass 8 9 0 990 8 9 LA 0 890 0 790 r r r r r r r r 1 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 153 Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz Fc 19 200 19 000 18 800 Outlet Air Temperature C 18 600 e 230 18 400
7. 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 0 940 C oe 0 840 re 9 0 740 Le _ _ 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 149 e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz 14 600 e 230 14 500 14 400 14 300 14 200 Outlet Air Temperature C 14 100 14 000 4 300 8 9 10 11 12 13 14 15 Piping Length m 4 200 ar 4 100 4 000 Cooling Capacity kW 3 900 3 800 Piping Length 0 920 0 910 5 2 0 900 49 Do 0 890 8 0 0 880 0 870 5 800 8 9 10 11 12 13 Piping Length m 5 700 5 600 Current A 5 500 5 400 8 9 10 11 12 13 14 15 Piping Length m 150 Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr 230 42 000 40 000 38 000 36 000 Outlet Air Tempeature C 34 000 32 000 CT i 5 4 3 2 4 0 1 2 3 4 5 6 7 10 Outdoor Air Temperatu
8. Acompressor rotation failure is detected by checking the compressor running condition through the position detection circuit Malfunction Caused e Compressor terminal disconnect e Faulty Outdoor PCB e Faulty compressor Troubleshooting When indication happens breakdown ahkvays off the power For safety reason and to prevent component Caution before remove and connect the component Check the U and connector connection Turn OFF the power Check the LI and connector connection at outdoor and compressor terminal Is the connector connection normal YES Disconnect the harnesses LJ v and VV from the compressor terminal From the disconnected harnesses U V and Correct them to the inverter checker Turn ON the power and operate the system Check the inverter checker LEDs blinking condition Connector poor contact Correct the connection defective Replace outdoor unit PCB compressor the blinking of the 6 LEDs in same sequencescondition 120 16 4 24 F95 Cooling High Pressure Abnormality Malfunction Decision Conditions e During operation of cooling when outdoor unit heat exchanger high temperature data 61 C is detected by the outdoor pipe temperature sensor Malfunction Caused Air short circuit at indoor unit Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed
9. Diagnosis Abnormality I Abnormality Protection Problem Check location display Protection control Judgement operation H41 Abnormal wiring or Wrong wiring and connecting Check indoor outdoor connection piping connection pipe expansion valve abnormality Continuous for 1 minutes Outdoor high pressure sensor abnormality High pressure sensor open circuit during compressor stop wire and connection pipe Expansion valve and lead wire and connector High pressure sensor Lead wire and connector Outdoor fan motor lock or feedback abnormal Outdoor fan motor mechanism lock 2 times happen within 30 minutes Outdoor fan motor lead wire and connector Fan motor lock or block Indoor high pressure protection Indoor high pressure protection Heating Indoor operating unit freeze protection Indoor freeze protection Cooling Check indoor heat exchanger Air filter dirty Air circulation short circuit Check indoor heat exchanger Air filter dirty Air circulation short circuit 4 way valve switching abnormality 4 times happen within 30 minutes 4 way valve switching abnormal Indoor standby units freezing abnormality 3 times happen 4 way valve Lead wire and connector Check indoor outdoor connection wire and pipe Indoor heat exchanger sensor lead wire and connector Expansion valve lead wire and connector F90 Power factor correction 4 times ha
10. o 5 SCREW CROSS FLOW FAN 1 CWH551146 oh 6 GENERATOR COMPLETE 1 CWH94C0043 7 EVAPORATOR 1 CWB30C2960 CWB30C2755 CWB30C3359 CWB30C3360 8 FLARE NUT LIQUID 1 CWT251030 m 2 e 9 FLARE NUT GAS 1 CWT251031 z CWT251032 10 CLIP FOR SENSOR 1 CWH32143 2 11 CONTROL BOARD CASING 1 CWH102449 B 12 TERMINAL BOARD COMPLETE 1 CWA28C2357 e o 1 CWA73C6641 CWA73C6642 CWAT3C6643 CWAT3C6644 o ELECTRONIC CONTROLLER RTS RTS a 16 SENSOR COMPLETE 1 CWA50C2401 2 o 17 SENSOR COMPLETE ECO 1 CWA50C2809 ps 25 18 OU SENSOR EP 1 CWA745791 T M 19 Eos 1 CWA746206 E 20 ST 1 CWA746653 2 P 2 21 LEAD WIRE PCB ECO 1 CWA67C9785 E 2 22 CONTROL BOARD CASING FOR mee m 23 CONTROL BOARD TOP COVER 1 CWH131467 24 INDICATOR HOLDER 1 CWD933406 25 Og FRONT 1 CWH13C1247 P 26 DISCHARGE GRILLE COMPLETE 1 CWE20C3234 27 BACK COVER CHASSIS 1 CWD933233A 2 28 FULCRUM 1 CWH621131 m 29 VERTICAL VANE 8 CWE241374 is m 30 CONNECTING BAR 1 CWE261250 31 CONNECTING BAR 1 CWE261256 E 2 32 AIR SWING MOTOR 1 CWA98K1016 33 AIR SWING MOTOR 1 CWA981264 m o 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL VANE COMPLETE 1 CWE24C1384 E 36 REMOTE CONTROL COMPLETE 1 CWA75C3887 m 2 m o 37 FRONT GRILLE COMPLETE 1 CWE11C5078 o 38
11. Check the connector connection Caution off the power before remove and connect the component Is the connector connection normal 0 Connector poor contact Correct the connection YES Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor Defect in outdoor discharge pipe temperature sensor Is the measured resistance of the outdoor discharge pipe temperature sensor matches the value specified in its char Replace the outdoor discharge pipe temperature sensor YES e Defect in outdoor unit PCB Replace the outdoor unit PCB 107 16 4 11 H32 Outdoor Heat Exchanger Temperature Sensor 2 Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty Troubleshooting When abnormality indication starts again Check the connector connection Turn off the power Check the connector connection Is the connector connection normal Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor For safety reason and to prev
12. e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection Turn off the power For safety reason and to prevent component breakdown always switch off the power enses ccn Caution before remove and connect the component Is the connector connection normal e Connector poor contact Correct the connection YES Check the outdoor compressor temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor compressor temperature sensor Is the measured resistance of the outdoor compressor temperature sensor matches the value specified in its characteristic chart Defect in outdoor compressor temperature sensor Replace the outdoor compressor temperature sensor YES e Defect in outdoor unit PCB the outdoor unit PCB Compressor Temp Sensor Thermistor Characteristics 70 60 50 40 30 Resistance 20 20 40 60 80 100 120 140 gt Temperature 101 16 4 5 16 Outdoor Current Transformer Open Circuit Malfunction Decision Conditions Acurrent transformer is detected by checking the compressor running frequency gt rated frequency and CT detected input current less than 0 65A for continuously 20 seconds Malfunction Caused CT defective e Outdoor PCB defective e Compressor defective low compression T
13. 045 227 161 048 212 155 0 51 192 148 0 55 e CU E9NKE CU E9NKE 3 230V Outdoor Temp C Indoor wet 30 35 40 46 bulb temp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 248 188 049 232 180 053 216 173 057 196 165 061 19 0 C 2 50 0 54 19 5 C 272 197 050 255 189 054 237 182 058 215 173 0 63 22 0 C 297 204 051 277 196 055 258 189 059 235 181 0 64 CU E12NKE 230V Outdoor Temp C Indoor wet 30 35 40 46 bulb temp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 347 263 079 324 252 085 302 243 0 91 274 230 0 98 19 0 C 3 50 0 86 19 5 C 381 2 76 080 356 265 086 331 255 092 301 243 1 00 22 0 C 415 286 0 82 388 275 0 88 361 265 0 94 328 253 1 01 e CU E12NKE 3 230V Outdoor Temp C Indoor wet 30 35 40 46 bulb temp Tc SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 347 263 093 324 252 090 302 243 096 274 230 103 19 0 C 3 50 0 91 19 5 C 381 276 085 356 265 091 331 255 098 301 243 1 05 22 0 C 415 286 0 86 388 275 0 93 361 265 099 328 2 53 107 CU E15NKE 230V Outdoor Temp C Indoor wet 30 35 40 46 bulbtemp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 417 346 115 389 2303 124 362 291 1 33 329 277 143 19 0 C 4 20 1 26 19 5 C 457 3 31 148 428 318 127 398 306 1 35 362 291 146 22 0 C 499 343 120 466 330 129 433 318 1 38 394 303 149 173 CU E18NKE 230V Outdoor Temp C Indoor wet
14. 29 31 33 35 37 39 41 43 Outdoor Air Temperature 161 e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz e 230 15 500 15 400 15 300 15 200 15 100 Outlet Air Temperature C 15 000 14 900 3 4 5 6 7 8 9 10 Piping Length m 11 13 Cooling Capacity kW 3 300 3 200 Piping Length 11 13 14 15 0 970 0 960 DELLI 0 950 0 940 Gas Side Piping Pressure MPa 0 930 0 920 8 9 10 Piping Length m 4 120 13 14 15 4 110 N 4 100 Current A 4 090 4 080 3 4 5 6 7 8 9 10 Piping Length m 162 11 12 e Heating Characteristic Indoor temperature 20 C Condition Remote condition High fan speed Heat 30 C Comp Hz Fr Outlet Air Tempeature C Heating Capacity kW 37 000 36 000 35 000 34 000 33 000 32 000 31 000 30 000 29 000 5 300 230 0 1 2 3 4 5 6 Outdoor Air Temperature C 4 800 Current A Gas Side Piping Pressure MPa 4 300 3 800 3 300
15. 300 6 200 6 100 0 890 7 8 9 10 11 12 13 14 15 16 17 18 49 20 Piping Length m 0 880 0 870 0 860 0 850 Piping Length m 7 8 9 10 11 12 13 14 15 16 17 18 19 20 9 950 9 930 9 910 9 890 9 870 eae 8 9 10 11 12 13 Piping Length m 170 14 15 16 17 18 19 20 Remote condition Comp Hz Fr 41 000 39 000 37 000 Heating Characteristic at Different Outdoor Air Temperature e Heating Characteristic Condition Indoor temperature 20 C High fan speed Heat 30 C e 230 Outlet Air Tempeature C 33 000 31 000 8 100 7 600 7 100 6 600 Heating Capacity kW 6 100 5 600 5 100 10 200 9 700 9 200 Current 8 700 8 200 7 700 3 200 3 000 2 800 Gas Side Piping Pressure MPa 2 600 2 400 35 000 Outdoor Air Temperature C 6 ERE 1 2 3 4 5 10 Outdoor Air Temperature C 5 4 3 2 1 0 1 2 3 4 5 6 10 Outdoor Air Temperature C 3 4 5 6 10 Outdoor Air Temperature C 171 Heating Characteristi
16. 34 600 34 500 34 400 Outlet Air Temperature C 34 200 34 300 3 4 5 6 7 8 9 10 11 12 Piping Length m 4 050 4 000 3 950 3 900 Heating Capacity kW 3 850 3 800 Piping Length 2 540 2 520 2 500 2 480 Gas Side Piping Pressure MPa 2 460 2 440 3 4 5 6 7 8 9 10 11 12 Piping Length m 4 420 4 400 4 380 4 360 Current A 4 340 4 320 4 300 8 9 10 11 12 w R a N Piping Length m 148 18 1 4 CU E15NKE e Cooling Characteristic Condition Indoor temperature 27 19 C Remote condition High fan speed Cool 16 C Comp Hz e 230 15 300 _ 14 800 9 45 5 9 14300 13 800 L L 13 300 21111 5 7 9 11 13 15 17 49 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 5 100 59 4 600 TRL gt t amp 4 100 3 600 T 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 6 900 5 900 5 lt 4 900 55 3 900 2900 4 4 4 t
17. 37 39 41 43 2 100 Outdoor Air Temperature C 2 900 2 700 2 500 2 300 7 2 400 1 900 1 700 V 1 300 i 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Current A Outdoor Air Temperature C 1 190 1 090 ja 0 990 Lie a Gas Side Piping Pressure MPa 0 890 4 0 790 T T T T T T T I 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 157 e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 Remote condition High fan speed Cool 16 C Comp Hz Fe e 230 17 700 17 600 17 500 17 400 17 300 Outlet Air Temperature C 17 200 17 100 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 2 400 Cooling Capacity kW 2 300 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length 1 130 1 120 1 110 1 100 1 090 Gas Side Piping Pressure MPa 1 080 1 070 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 2 510 2 500 Current A 2 490 2 480 i 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 158 H
18. 5 500 ae Lert 1 0 1 2 3 4 5 6 Outdoor Air Temperature C 10 5 300 5 100 4 900 4 700 4 500 4 300 HT 1 0 1 2 3 4 5 6 Outdoor Air Temperature C 10 2 700 2 500 2 300 2 100 1 900 5 4 3 2 1 0 1 2 3 4 5 6 Outdoor Air Temperature C 163 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr e 230 35 600 35 500 35 400 35 300 Outlet Air Temperature C 35 200 35 100 4 500 Piping Length m 4 400 VEU REED 22 Heating Capacity KW 4 300 4 200 DM 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 2 480 REN 2460 9 2440 2 420 1 4 5 120 w o 8 9 10 11 12 13 14 15 Piping Length m 5 100 5 080 5 060 5 040 Current A 5 020 5 000 4 980 8 9 10 11 12 13 14 15 Piping Length m 164 18 1 8 CU E18NKE Cooling Characteristic at Different Outdoor Air Temperature e Cooling Characteristic Indoor temperature 27 19 C Condition Remote condition High fan speed Cool 1
19. Abnormality Malfunction Decision Conditions e When heating operation when indoor pipe temperature is below 10 C e When cooling operation when indoor pipe temperature is above 45 C Malfunction Caused e Connector in poor contact e Faulty sensor e Faulty outdoor unit PCB 4 valve defective Troubleshooting When F11 indication happens For safety reason and to prevent A component breakdown always switch Caution off the power before remove and Check the indoor pipe temperature sensor connect the component NO Does it conform to the sensor characteristic chart _ Replace the indoor pipe temperature sensor YES Is the 4 valve coil energized during NO Is F11 occurs during heating operation cooling operation YES Replace the outdoor unit PCB YES 4 way valve coil disconnected loose MES Correct the 4 way valve coil NO Harness out of connector YES e the harness NO Check the continuity of the 4 way valve coil Disconnect the harness from the connector Resistance YES Heolaco the 4 wav Valve between harnesses about 180 y NO Measure DC voltage supply to CN HOT pin1 amp 2 during heating operation Is the voltage supply to 4 way valve 2 5 4 5Vdc YES 2 Replace the outdoor unit NO 4 way valve 16 16 4 20 F17 Indoor Standby Units Freezing Abnormality Malfunction Decision Conditions e When the different between
20. C 155 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr e 230 32 400 32 300 32 200 32 100 Outlet Air Temperature C 32 000 31 900 8 9 10 11 w R o Piping Length m 2 900 2800 M 2 700 Heating Capacity KW 2 600 R 6 7 8 9 10 11 Piping Length 2 660 2 650 2 640 2 630 2 620 Gas Side Piping Pressure MPa 2 610 2 600 3 4 5 6 7 8 9 10 11 Piping Length m 3 020 3 000 2 980 Current A 2 960 2 940 2 920 7 8 9 10 11 A Piping Length 156 12 18 1 6 CU E9NKE 3 e Cooling Characteristic Condition Indoor temperature 27 19 Remote condition High fan speed Cool 16 C Comp Hz e 230 18 500 18 000 Outlet Air Tempeature C 17 500 17 000 S 16 500 t 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 3 100 2 900 IL 2 700 LLL 2 500 Cooling Capacity KW 2 300 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
21. CS E9NKEW CS E12NKEW CS E15NKEW REMARK 1 CHASSIS COMPLETE 1 CWD50C1653 m J 2 MOTOR 1 ARW7628AC 2 o 3 CROSS FLOW FAN COMPLETE 1 CWHO2C1076 E E E 4 BEARING ASSY 1 CWH64K007 2 o 5 SCREW CROSS FLOW FAN 1 CWH551146 2 6 GENERATOR COMPLETE 1 CWH94C0043 ER 7 EVAPORATOR 1 CWB30C2960 CWB30C2755 CWB30C3359 CWB30C3360 8 FLARE NUT LIQUID 1 CWT251030 9 FLARE NUT GAS 1 CWT251031 CWT251032 10 CLIP FOR SENSOR 1 CWH32143 m 11 CONTROL BOARD CASING 1 CWH102449 m 12 TERMINAL BOARD COMPLETE 1 CWA28C2357 Bl 1 CWAT3C6641 CWA73C6642 7 6643 CWAT3C6644 o 14 ELECTRONIC CONTROLLER HVU 1 NOGE1F000002 2 meme meum oo wee sma 16 SENSOR COMPLETE 1 CWABOC2401 E E o 17 SENSOR COMPLETE ECO 1 CWABOC2809 2 CONTROLLER ECO 2 _ ELECTRONIC CONTROLLER ECO NC Z 20 COMER SEED 1 CWA746653 m 21 LEAD WIRE PCB ECO 1 CWAG67C9785 i m 22 CONTROL BOARD CASING FOR ONES S Y 23 CONTROL COVER 1 CWH131467 d FA 24 INDICATOR HOLDER 1 CWD933406 25 CONTROL BOARD FRONT owH13o1247 m 26 DISCHARGE GRILLE COMPLETE 1 CWE20C3235 x 27 BACK COVER CHASSIS 1 CWD933233 28 FULCRUM 1 CWH621131 29 VERTICAL VANE 8 CWE241374 m 30 CONNECTING BAR 1 CWE261250 2 2 31 CONNECT
22. Current A 2 190 2 180 Piping Length m 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 138 e Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr 34 000 230 33 000 32 000 31 000 30 000 Outlet Air Tempeature C 29 000 28 000 27 000 3 200 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 000 2 800 2 600 2 400 Heating Capacity kW 2 200 2 000 1 800 3 300 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 100 2 900 Current A 2 700 T T 2 500 i 5 4 3 2 4 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 000 2 800 2 600 2 400 Gas Side Piping Pressure MPa 2 200 2 000 T 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 139 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr e 230 32 400 32 300 32 200 32 100 Outlet Air Temperature C 32 000 31 900 2 850 8 9
23. DISCHARGE MUFFLER 1 CWB121010 15 HOLDER COUPLING 1 CWH351023 16 2 WAYS VALVE LIQUID 1 CWB021559 CWB021457 17 3 WAY VALVE GAS 1 011374 lt lt o 19 REACTOR 1 G0C193J00002 lt G0C193J00004 o 20 TERMINAL COVER 1 CWH171039A lt 21 TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151172 23 SOUND PROOF MATERIAL 1 CWG302316 23B SOUND PROOF MATERIAL 1 CWG302317 23C SOUND PROOF MATERIAL 1 CWG302315 lt 24 SENSOR 1 50 2205 25 CONTROL BOARD 1 CWH131264 lt lt 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6654R CWAT73C6656R CWA73C6658R o 27 TERMINAL BOARD ASSY 1 CWA28K1110J lt 28 CABINET SIDE PLATE CO RIGHT 1 CWE04C1116 lt 29 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWA50C2764 lt lt o 30 CABINET SIDE PLATE LEFT 1 CWE041248A lt lt 31 FRONT PLATE 1 CWE06C1039 CWE06C1136 32 CABINET TOP PLATE 1 CWE031014A 33 PLATE C B COVER TERMINAL 1 CWH131301 c 34 CONTROL BOARD COVER CO 1 CWH13C1211 35 HANDLE 1 CWE161010 lt 38 4 WAYS VALVE 1 CWB001037J lt lt o 39 V COIL COMPLETE 1 CWA43C2431 lt o 40 WIRE NET 1 CWD041111A 47 CRANKCASE HEATER 1 CWA341044 lt 50 1 CWG87C900 51 1 CWG861078 lt 52 BASE BOARD COMPLETE 1 CWG62C1095 53 SHOCK ABSORBER 1 CWG712969 54 SHOCK ABSORBER 1 CWG712970 lt lt 55 1 CWG568357
24. Decision Conditions e During startup error code appears when different types of indoor and outdoor units are interconnected Malfunction Caused e Wrong models interconnected Wrong indoor unit or outdoor unit PCBs mounted Indoor unit or outdoor unit PCBs defective Indoor outdoor unit signal transmission error due to wrong wiring Indoor outdoor unit signal transmission error due to breaking of wire 3 in the connection wires between the indoor and outdoor units Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Check the indoor and outdoor unit connection wires A Caution Is there any wiring error YES Correct the indoor outdoor units connection wires NO Check indoor and outdoor units model number Is indoor unit and outdoor unit model numbers matched NO Match the compatible model s YES Check the spare part numbers of the indoor and outdoor unit PCBs and compare with their Part Lists YES NO ified i i Matched compatibility for the specified indoor outdoor unit Replace the indoor and outdoor unit PCBs 99 16 4 3 H14 Indoor Intake Air Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors Malfunction Caused
25. Faulty outdoor unit fan motor Excessive refrigerant Clogged expansion valve or strainer Faulty outdoor pipe temperature sensor Faulty outdoor unit PCB Troubleshooting When F95 indication happens For safety reason and 10 prevent component breakdown aways switch off the power Check the outdoor air passage Caution before remove and connect the component ae YES Is there short circuit Provide sufficient air passage Check the dust accumulation on the outdoor unit heat exchanger Is the outdoor unit heat exchanger dirty YES the outdoor unit heat exchanger NO f YES Check if the 253 way valve E closed the 2 3 way vale NO Check if the outdoor fan motor operates normally Check refrigerant amount NO Reclaim and recharge with correct refrigerant amount filled correctly amount of refrigerant YES YES Replace the expansion valve and or Check if the expansion valve or strainer strainer clogged ice formed Reclaim and recharge refrigerant Check the outdoor pipe temperature Sensor Does it conform to the sensor characteristic charts Replace compressor XES Replace outdoor unit 121 16 4 25 F96 IPM Overheating Malfunction Decision Conditions e During operating of cooling and heating when IPM temperature data 100 C is detected by the IPM temperature sensor Multi Models only o Compressor Overheating During operation of cooling and heati
26. High fan speed Cool 16 C Comp Hz e 230 16 500 16 000 21 15 500 Outlet Air Tempeature C 15 000 14 500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 4 200 4 000 3 800 3 600 3 400 Cooling Capacity kW 3 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 3 000 Outdoor Air Temperature C 5 000 4 500 4 000 3 500 3 000 Current A 2 500 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 1 080 0 980 0 880 Gas Side Piping Pressure MPa 0 780 0 680 m 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 145 Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz Fc e 230 16 000 15 800 15 600 Outlet Air Temperature C 15 400 15 200 9 3 4 5 6 7 8 9 10 Piping Length m 3 600 3 500 LESI 3 400 Cooling Capacity kW 3 300 3 200 5 6 7 8 9 10 Piping L
27. Top Cover Hooks Terminal Board Cover 135 5 Remove the Control Board as follows Remove 5 connectors from electronic controller Remove 2 connectors from reactor Remove 1 screw Remove earth wire Remove 2 screws Fig 4 Remove the Terminal Cover and 3 Terminal Compressor Control Board Compressor Fig 5 Electronic Controller Control Board 17 3 3 CU E18NKE CU E21NKE 1 Remove the 4 screws of the Top Panel Screws Top Panel Screws gt lt d Fig 1 2 Remove the 10 screws of the Front Panel Screws E gt Screws Front Panel 3 Remove the Top Cover of the Electronic Controller Top Cover 136 4 Remove the Control Board Release the Hooks Control Board i Release 6 terminal connectors Release 6 connectors 5 Remove 8 screws of the Electronic Controller Screws Electronic Controller Screws Fig 5 A Caution When handling electronic controller be careful of electrostatic discharge 18 Technical Data 18 1 Operation Characteristics 18 1 1 7 e Cooling Characteristic Condition Indoor temperature 27 19 Remote condition High fan speed Cool 16 C Comp Hz e 230 19 600 19 100 18 600 Outlet Air Tempeature C 18 100 17 600 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37
28. e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check th mE For safety reason and to prevent component eck the connector connection 5 breakdown always switch off the power aution off the power before remove and connect the component Check the connector connection 16 the connector connection normal NO poor contact Correct the connection YES Check the indoor intake air temperature sensor Plug out connector from the indoor unit PCB Measure the resistance of the indoor intake air temperature sensor Is the measured resistance of the indoor intake air NO Defect in indoor intake air temperature sensor temperature sensor matches the value specified in its characteristic chart Replace the indoor intake air temperature sensor YES Defect in indoor unit PCB Replace the indoor unit PCB Sensor Thermistor Characteristics Pipe temp Sensor Intake Air Temp Sensor Resistance 4 10 0 10 20 40 gt Temperature C 100 16 4 4 H15 Compressor Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection Faulty sensor
29. pepe m 5 4 3 2 4 0 1 2 3 4 5 6 7 8 9 10 Heating Capacity kW Outdoor Air Temperature C 3 700 3 500 8 3 300 3 100 2 900 L T 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Current A Outdoor Air Temperature C 2 600 2 400 o 9 9 2200 83 4 OA 2000 1 800 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 143 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr 34 900 e 230 34 800 34 700 34 600 Outlet Air Temperature C 34 500 34 400 ee 3 450 8 9 10 11 12 13 14 15 Piping Length 3 400 3 350 Heating Capacity kW 3 300 3 250 A 2 400 Piping Length m 2 380 Gas Side Piping Pressure MPa 2 360 2 340 3 420 8 9 10 11 12 Piping Length m 3 400 3 380 Current A 3 360 3 340 3 320 A 8 9 10 11 12 13 14 15 Piping Length 144 18 1 3 CU E12NKE e Cooling Characteristic Condition Indoor temperature 27 19 C Remote condition
30. reason and to prevent component breakdown always switch off the power Caution petore remove and connect the component NO Is the connector connection normal Connector poor contact Correct the connection YES Check the connector connection Check the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor air temperature sensor Is the measured resistance of the outdoor air temperature sensor matches the value specified in its characteristic Defect in outdoor air temperature sensor chart Replace the outdoor air temperature sensor XES Defect in outdoor unit PCB Replace the outdoor unit PCB Sensor Thermistor Characteristics DOutdoor Air Sensor Outdoor Heat Exchanger Resistance 10 0 10 20 30 40 50 J Temperature C 105 16 4 9 28 Outdoor Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor pipe temperature sens or are used to determine sensor errors Malfunction Caused e Faulty connector connection Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent Check the connector connection component breakdown always switch Turn off the power Caution off the power before remo
31. supply and rotate fan by hand connect the component NO Does fan rotate smoothly Replace fan motor YES Turn power supply on and operate fan YES Does it rotate Stop fan motor Turn off power supply and disconnect fan motor connector then turn power on Check the output of fan motor from indoor PCB Is the motor power supply voltage 325Vdc 7 amp 4 generated Is the motor control voltage 15Vdc pin 3 amp 4 generated Operate the fan is the rotation command voltage 1 5Vdc 2 amp 4 generated Check the rotation feedback output from fan motor Rotate the fan motor by hand is the rotation feedback NO voltage 15Vdc pin 1 amp 4 generated Replace indoor PCB Replace fan motor 113 16 4 17 98 Indoor High Pressure Protection Error Code will not display no Timer LED blinking but store in EEPROM Malfunction Decision Conditions e During heating operation the temperature detected by the indoor pipe temperature sensor is above 60 C Malfunction Caused Air short circuit at indoor unit Clogged indoor unit air filter Dust accumulation on the indoor unit heat exchanger 2 3 way valve closed Faulty indoor unit fan motor Excessive refrigerant Clogged expansion valve or strainer Faulty indoor pipe temperature sensor Faulty indoor unit PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown akvays switch
32. 0 4 0 790 T T T T T T T I 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 141 e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz e 230 17 700 17 500 17 300 Outlet Air Temperature C 17 100 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 2 400 Cooling Capacity kW 2 300 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length 1 130 1 120 1 110 1 100 1 090 Gas Side Piping Pressure MPa 1 080 1 070 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 2 510 2 500 Current A 2 490 2 480 i 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 142 Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr 230 37 000 36 000 35 000 34 000 33 000 32 000 31 000 Outlet Air Tempeature C 30 000 29 000 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 4 200 3 700 3508 21 17 2700 LIT 2 200
33. 1 j 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m S 2000 ect 22 83 8 1 900 1 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length 1 130 1 120 DELL Pw 54 1110 Li 92 8 1 100 1 090 1 080 7 8 9 10 11 12 13 14 15 2 210 2 200 Current A 2 190 2 180 Piping Length m 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m 154 e Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr 34 000 230 33 000 32 000 31 000 30 000 Outlet Air Tempeature C 29 000 28 000 27 000 3 200 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 000 2 800 2 600 2 400 Heating Capacity kW 2 200 2 000 1 800 3 300 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 100 2 900 Current A 2 700 T T 2 500 i 5 4 3 2 4 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 000 2 800 2 600 2 400 Gas Side Piping Pressure MPa 2 200 2 000 T 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature
34. 10 11 12 13 14 15 Piping Length m a 2 750 Heating Capacity kW 2 700 2 650 3 4 5 6 8 9 10 11 12 13 14 15 Piping Length m 2 660 S 24 2640 2 8 9 2620 2 600 3 020 8 9 10 Piping Length m 3 000 2 980 Current A 2 960 2 940 2 920 A 8 9 10 11 12 13 14 15 Piping Length 140 18 1 2 CU E9NKE e Cooling Characteristic Condition Indoor temperature 27 19 C Remote condition High fan speed Cool 16 C Comp Hz e 230 18 500 18 000 Outlet Air Tempeature C 17 500 17 000 S 16 500 t 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 3 100 2 900 IL 2 700 LLL 2 500 Cooling Capacity KW 2 300 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 2 100 Outdoor Air Temperature C 2 900 2 700 2 500 2 300 7 2 400 1 900 1 700 V 1 300 i 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Current A Outdoor Air Temperature C 1 190 1 090 ja 0 990 Lie a Gas Side Piping Pressure MPa 0 89
35. 11 7 Remove the control board cover by releasing the 2 hooks Figure 13 13 Detach 6 connectors as labeled from the electronic controller Then pull out main controller gently l Remove screw to remove terminal board complete Detach the HV White amp HV Black terminal wires CN1 and GND then remove the high voltage generator Detach the CN DISP connector then remove the indicator complete 14 Detach AC303 WHT RY PWR connector Black and Brown from the electronic controller Detach the Earth wire 45 Detach AC304 RED from Terminal Board Figure 15 131 17 2 1 4 To remove discharge grille 17 Then pullthe discharge grille downward gently to dismantle it from the discharge grille Figure 16 17 2 1 5 To remove control board control board axis Figure 18 132 16 Pull out to remove the drain hose Remove 4 screws holding the control board then pull out the 19 Remove the screw that holding the cross flow fan and fan motor 21 Remove the bearing by pulling it out gently 20 Remove the screw from the evaporator Figure 19 22 Push the holdfast to the left and lift up the evapaator Evaporator 23 Remove the cross flow fan from 24 Fan motor can be removed after the the unit by pulling it to the left and removal of cross flow fan downward Reminder To reinstall the fan motor adjust the fan mot
36. 16 Troubleshooting Guide 16 1 Refrigeration Cycle System In order to diagnose malfunctions make sure that there are no Normal Pressure and Outlet Air Temperature Standard electrical problems before inspecting the refrigeration cycle Gas Pressure Such problems include insufficient insulation problem with the Mpa Outlet air Temperature CC kg cm G power source malfunction of a compressor and a fan The normal outlet air temperature and pressure of the refrigeration Cooling Mode 0 9 1 2 9 12 12 16 cycle depends on various conditions the standard values for them Heating Mode 23 29 23 29 are shown in the table on the right 1 Condition Indoor fan speed High 36 45 Outdoor temperature 35 C at the cooling mode and 7 C at the heating mode Compressor operates at rated frequency 15 minutes after an operation is started at cooling mode Above 149 15 minutes after an operation is started at heating mode Less than 8 C at the cooling mode Less than 14 C at the heating mode Excessive amount of refrigerant Lower than specified Gas side pressure Insufficient refrigerant Clogged strainer capillary tube Inefficient compressor j Insufficient refrigerant Clogged strainer or capillary tube Heating Mode Difference in the intake Measuring the air temperature and outlet Norma
37. 2 CABINET TOP PLATE 1 CWE031014A 33 PLATE C B COVER TERMINAL 1 CWH131301 34 CONTROL BOARD COVER CO 1 CWH13C1211 35 HANDLE 1 CWE161010 38 4 WAYS VALVE 1 CWB001037J 39 V COIL COMPLETE 1 CWA43C2431 40 WIRE NET 1 CWD041111A 50 1 CWG87C900 51 1 CWG861078 lt 52 BASE BOARD COMPLETE 1 CWG62C1095 lt 53 SHOCK ABSORBER RIGHT 1 CWG712969 54 SHOCK ABSORBER LEFT 1 CWG712970 55 CASE 1 CWG568356 e All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 e marked parts are recommended to be kept in stock 184 REF PART NAME amp DESCRIPTION QTY CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 REMARK 1 CHASSIS COMPLETE 1 CWD50K2073 2 SOUND PROOF MATERIAL 1 CWG302314 3 FAN MOTOR BRACKET 1 CWD541089 4 SCREW MOTOR 2 CWH551217 lt lt 5 FAN MOTOR 1 CWA951720 CWA951721 CWA951699 o 6 SCREW FAN MOTOR MOUNT 4 CWH55252J 7 PROPELLER FAN ASSY 1 CWHO03K1010 lt 8 PROPELLER 1 CWH56053J lt 9 COMPRESSOR 1 5RS092XCD21 5RS102XBC21 lt o 10 ANTI VIBRATION BUSHING 3 CWH50077 11 NUT COMPRESSOR MOUNT 3 CWH56000J 12 CONDENSER 1 CWB32C2985 CWB32C2448 13 TUBE ASSY CAP CHK VALVE 1 CWTO01C5305 01 4850 CWT01C4851 14
38. 30 35 40 46 bulbtemp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 496 376 135 464 361 145 431 347 155 392 329 167 19 0 C 5 00 1 47 19 5 C 545 3 94 1 37 509 378 148 474 364 158 431 347 1 70 22 0 594 408 140 555 393 150 516 379 161 469 261 173 CU E21NKE 230V Outdoor Temp C Indoor wet 30 35 40 46 bulb temp SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 625 474 20 584 454 248 543 437 233 494 445 2 51 19 0 C 6 30 2 21 19 5 C 686 496 206 641 477 222 597 459 23 542 437 256 22 0 C 748 544 240 699 495 226 650 477 242 591 4 55 261 TC Total Cooling Capacity kW SHC Sensible Heat Capacity kW IP Input Power KW Indoor 27 C 19 C Outdoor 35 24 174 19 Exploded View and Replacement Parts List 19 1 Indoor Unit XE12NKEW CS XE15NKEW CS E7NKEW CS E9NKEW CS E12NKEW CS E15NKEW CS XE7NKEW CS XE9NKEW CS 19 1 1 CWH55025J CWH55051J vy 222 B Ns mel B 4 The above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note 175 REF PART amp DESCRIPTION QTY CS ETNKEW
39. 39 41 43 Outdoor Air Temperature C 2 500 2 300 TTX 2 100 Cooling Capacity kW 1 900 1 700 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 2 700 2 500 2 300 2 100 1 900 1 700 1 500 1 300 LLL 1 100 7 Y 5 7 9 11 13 15 17 49 21 23 25 27 29 31 33 35 37 39 41 43 Current A Outdoor Air Temperature C 1 190 _ 1 090 9 0 990 83 89 0 890 gt lt 0 790 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 137 Piping Length Characteristic Condition Indoor temperature 27 19 C 35 C Remote condition High fan speed Cool 16 C Comp Hz Fc 19 200 19 000 18 800 Outlet Air Temperature C 18 600 e 230 18 400 1 j 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length m ba 58 2000 uc 22 83 8 1 900 1 800 3 4 5 6 7 8 9 10 11 12 13 14 15 Piping Length 1 130 1 120 54 a 1 110 D D 92 8 1 100 1 090 1 080 r 7 8 9 10 11 12 13 14 15 2 210 2 200
40. 6 NI 6 GENERATOR COMPLETE 1 CWH94C0043 2 7 EVAPORATOR 1 CWB30C3860 2 8 FLARE NUT LIQUID 1 CWT251030 n 9 FLARE NUT GAS 1 CWT251032 10 CLIP FOR SENSOR 1 CWH32143 A 11 CONTROL BOARD CASING 1 CWH102449 2 i 12 TERMINAL BOARD COMPLETE 1 CWA28C2357 o ie coe ae 1 CWAT3C6645 CWAT3C6646 CWAT3C6645 CWAT3C6646 o 14 ELECTRONIC CONTROLLER 2 16 SENSOR COMPLETE 1 CWA50C2401 2 2 o 17 SENSOR COMPLETE ECO 1 CWAS0C2826 2 18 E 1 745791 19 1 CWA746206 20 1 CWA746653 L T 21 LEAD WIRE PCB ECO 1 CWAG7C9934 E 22 CONTROL BOARD CASING FOR namen Z 23 CONTROL BOARD TOP COVER 1 CWH131467 24 INDICATOR HOLDER 1 CWD933406 L 25 FRONT 1 CWH13C1247 T 26 DISCHARGE GRILLE COMPLETE 1 CWE20C3242 CWE20C3244 27 BACK COVER CHASSIS 1 CWD933031 CWD933031A as 28 FULCRUM 2 CWH621138 22 29 VERTICAL 11 CWE241374 ia 30 CONNECTING BAR RIGHT 1 CWE261257 31 CONNECTING BAR LEFT 1 CWE261258 32 AIR SWING MOTOR 1 CWA98K1018 33 SWING MOTOR 1 CWA981241 a o 34 CAP DRAIN TRAY 1 CWH521096 2 35 HORIZONTAL VANE COMPLETE 1 CWE24C1392 i CWE24C1395 36 REMOTE CONTROL COMPLETE 1 CWAT5C3887 o 37 FRONT GRILLE COMPLETE 1 CWE11C5091 D CWE11C5129 o 38 INTAKE
41. 6 A Hz x compressor running frequency 0 25 e Gas shortage detection 2 A gas shortage is detected by checking the difference between indoor pipe temperature and indoor intake air temperature during cooling and heating Malfunction Caused Faulty indoor intake air or pipe temperature sensor 2 3 way valve closed Refrigerant shortage refrigerant leakage Clogged expansion valve or strainer Faulty outdoor unit Poor compression of compressor Troubleshooting When 1 indication happens For safety reason and to prevent component breakdown akvays swich off the power Caution petere remove and connect the component Check the indoor air intake and pipe temperature sensors Does it conform to sensor the indoor intake air or pipe characteristic chart temperature sensor YES 2 3 vay valve closed YES 2 3 way valve NO Check for gas leaking YES Repair the pipe flare or union nuts Oil oozing out from the 2 3 way valve Reclaim and recharge refrigerant NO Check if expansion valve or strainer YES expansion valve and or strainer clogged ice formed Reclaim and recharge refrigerant NO Reclaim and recharge for a specified amount of fresh refrigerant Refrigerant cycle abnormality error again Tbe Replace outdoor unit PCB 8 compressor Procedure complete 119 16 4 23 F93 Compressor Rotation Failure Malfunction Decision Conditions
42. 6 C Comp Hz Outlet Air Tempeature C Cooling Capacity KW Current A Gas Side Piping 230 16 600 16 100 15 600 15 100 14 600 14 100 13 600 6 200 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 5 700 5 200 4 700 4 200 7 100 Outdoor Air Temperature C 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 6 100 5 100 4 100 3 100 5 7 1 000 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 0 980 0 960 0 940 Pressure MPa 0 920 TL 0 900 0 880 0 860 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature 165 Cooling Characteristic at Different Piping Length e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 Remote condition High fan speed Cool 16 C Comp Hz Fc e 230 15 500 15 400 15 300 Outlet Air Temperature C 15 200 8 9 10 11 12 13 14 15 16 17 18 19 20 w R o Piping Length m 5 100 5 000 4 900 PO sm 4 800
43. C malfunction Operation error due to faulty indoor unit PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent A component breakdown always switch Caution off the power before remove and Turn off power supply and rotate fan by hand connect the component NO Does fan rotate smoothly fan motor YES Turn power supply on and operate fan Turn off power supply and disconnect fan motor connector then turn power on Check the output of fan motor from indoor PCB Is the motor power supply voltage 325Vdc pin 1 amp 4 generated Is the motor control voltage 15Vdc pin 5 amp 4 generated Operate the fan is the rotation command voltage 1 5Vdc pin 6 amp 4 generated Check the rotation feedback output from fan motor Rotate the fan motor by hand is the rotation feedback NO voltage 15Vdc pin 7 amp 4 generated indoor PCB Replace fan motor 103 16 4 7 23 Indoor Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent com
44. Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent off the power A component breakdown always switch Check the connector connection Caution off the power before remove and connect the component Is the connector connection normal NO Connector poor contact e Correct the connection YES Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor Defect in outdoor discharge pipe temperature sensor Is the measured resistance of the outdoor gas pipe temperature sensor matches the value specified in its Haract ristio chart Replace the outdoor discharge pipe characteristic chart temperature sensor YES Defect in outdoor unit PCB Replace the outdoor unit PCB 111 16 4 15 H37 Outdoor Liquid Pipe Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor liquid pipe temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent
45. Caution off the power before remove and connect the component et YES ls there any short circuit Provide sufficient air passage Check the indoor unit air fitter Is the air filter dirty YES Clean the air filter NO Check the dust accumulation on the indoor unit heat exchanger 7 YES 5 R the indoor unit heat exchanger dirty Clean the indoor unit heat exchanger NO 2 YES Check if 2 3 way valve is closed Open the 2 3 way valve NO Check if indoor fan motor operates normally Replace the indoor unit fan motor andor indoor unit PCB YES Check if additional refrigerant amount filled correctly NO and recharge with comect amount of refrigerant Check if expansion valve or strainer clogged ice formed XES Reclaim and recharge with correct amount of refrigerant Check the indoor pipe temperature sensor Does it conform to the sensor characteristic chart the indoor pipe temperature sensor YES Replace the indoor unit PCB 11 R 16 4 18 99 Indoor Freeze Prevention Protection Cooling Soft Dry Error Code will not display no Timer LED blinking but store in EEPROM Malfunction Decision Conditions e Freeze prevention control takes place when indoor pipe temperature is lower than 2 C Malfunction Caused Air short circuit at indoor unit Clogged indoor unit air filter 2 3 way valve closed Faulty indoor unit fan motor Refrigerant sho
46. GRILLE COMPLETE 1 CWE22C1728 E CWE22C1729 2 39 GRILLE DOOR COMPLETE 1 CWE14C1090 E CWE14C1091 2 40 AIR FILTER 2 CWD001283 m s o 41 SCREW FRONT GRILLE 3 XTT4 16CFJ HE E 42 CAP FRONT GRILLE 3 CWH521227 RE CWH521227A e 43 DRAIN HOSE 1 CWH851173 m 44 INSTALLATION PLATE 1 CWH361098 as BAG COMPLETE INSTALLATION CWH82C1705 Z 46 OPERATING INSTRUCTION 1 CWF56C7825 E 50 BAG 1 CWG861498 z 51 SHOCK ABSORBER L 1 CWG713402 2 181 52 SHOCK ABSORBER 1 CWG713403 53 CASE 1 CWG567454 All parts are supplied from PAPAMY Malaysia Vendor Code 00029488 e marked parts are recommended to be kept in stock 182 19 2 Outdoor Unit CU E7NKE CU E9NKE CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 19 2 1 0 a S R RV 24 Ai d SU ye 9 17 The above view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note 183
47. ING BAR 1 CWE261256 E 32 AIR SWING MOTOR 1 CWA98K1016 n 33 AIR SWING MOTOR 1 CWA981264 E z 2 o 34 CAP DRAIN TRAY 1 CWH521096 35 HORIZONTAL COMPLETE 1 CWE24C1385 36 REMOTE CONTROL COMPLETE 1 CWA75C3887 o 37 FRONT GRILLE COMPLETE 1 CWE11C5053 x m o 38 INTAKE GRILLE COMPLETE 1 CWE22C1723 39 GRILLE DOOR COMPLETE 1 CWE14C1090 40 AIR FILTER 2 CWD001279 nw o 41 SCREW FRONT GRILLE 2 XTT4 16CFJ m 42 CAP FRONT GRILLE 2 CWH521227 n FA 43 DRAIN HOSE 1 CWH851173 22 44 INSTALLATION PLATE 1 CWH361097 22 as BAG COMPLETE INSTALLATION a orem a 46 OPERATING INSTRUCTION 1 CWF56C7825 50 BAG 1 CWG861497 51 SHOCK ABSORBER L 1 CWG713386 176 52 SHOCK ABSORBER 1 CWG713387 53 CASE 1 CWG567354 e All parts are supplied from Malaysia Vendor Code 00029488 e marked parts are recommended to be kept in stock 177 REF PART NAME 8 DESCRIPTION QTY CS XE7NKEW CS XE9NKEW CS XE12NKEW CS XE15NKEW REMARK 1 CHASSIS COMPLETE 1 CWD50C1666 m 2 FAN MOTOR 1 ARW7628AC E o 3 CROSS FLOW FAN COMPLETE 1 CWHO02C1076 m z 2 4 BEARING ASSY 1 CWH64K007
48. INTAKE GRILLE COMPLETE 1 CWE22C1731 m 39 GRILLE DOOR COMPLETE 1 CWE14C1091 m 40 FILTER 2 CWD001279 m o 41 SCREW FRONT GRILLE 2 XTT4 16CFJ g 42 CAP FRONT GRILLE 2 CWH521227A T 43 DRAIN HOSE 1 CWH851173 m 44 INSTALLATION PLATE 1 CWH361097 2 as BAG COMPLETE INSTALLATION m E 46 OPERATING INSTRUCTION 1 CWF56C7825 m 50 BAG 1 CWG861497 ps 51 SHOCK ABSORBER L 1 CWG713386 2 178 52 SHOCK ABSORBER R 1 CWG713387 53 CASE 1 CWG567354 Allparts are supplied from Malaysia Vendor Code 00029488 e marked parts are recommended to be kept in stock 179 19 1 2 CS E18NKEW CS E21NKEW CS XE18NKEW CS XE21NKEW CWH55051J above exploded view is for the purpose of parts disassembly and replacement The non numbered parts are not kept as standard service parts Note 180 PART 8 DESCRIPTION QTY CS E18NKEW CS E21NKEW CS XE18NKEW CS XE21NKEW REMARK 1 CHASSIS COMPLETE 1 CWDS0C1654 CWD50C1604 2 FANMOTOR 1 ARW7627AC 2 o 3 CROSS FLOW FAN COMPLETE 1 CWH02C1077 is i xs 4 BEARING ASSY 1 CWH64K007 o 5 SCREW CROSS FLOW FAN 1 CWH55114
49. SENSOR 1 CWAS0C2185 27 V COIL COMPLETE 4 WAY VALVE 1 CWA43C2169J lt o 28 V COIL COMPLETE EXP VALVE 1 CWA43C2257 lt o 29 SENSOR CO AIR TEMP AND PIPE TEMP 1 CWAS0C2656 lt o 30 SENSOR CO PIPING amp AIR TEMP 1 CWAS0C2517 31 1 G0C203J00003 lt o 33 TERMINAL BOARD ASSY 1 CWA28K1110J lt o 38 ELECTRONIC CONTROLLER MAIN 1 CWA73C6407R CWAT73C6408R o 40 CONTROL BOARD COVER TOP 1 CWH131333 41 CABINET SIDE PLATE LEFT 1 CWE041520A 42 HANDLE 1 CWE161010 43 CABINET SIDE PLATE CO RIGHT 1 CWE041555A 45 FRONT PLATE CO 1 CWEO06K1077 46 WIRE 1 CWD041155A 47 PLATE 1 CWE031083A 48 CONTROL BOARD COVER 1 CWH13C1238 49 PLATE C B COVER TERMINAL 1 CWH131409A 58 SOUND PROOF MATERIAL 1 CWG302636 CWG302638 59 SOUND PROOF MATERIAL 1 CWG302630 62 RECEIVER 1 CWB14011 64 OIL SEPARATER ASS Y CWB16K1022 65 CAPILLARY TUBE ASSY CWB15K1376 66 SOUND PROOF MATERIAL 1 CWG302632 CWG302600 70 BAG COMPLETE 1 CWG87C900 71 1 5861461 72 BASE BOARD COMPLETE 1 CWG62C1131 73 SHOCK ABSORBER LEFT 1 CWG713217 74 5 ABSORBER RIGHT 1 CWG713218 75 CASE 1 CWG568359 parts supplied from Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock 189 PAPAMY Printed in Malaysia FB0112 0
50. aulty outdoor unit PCB Faulty compressor Troubleshooting When indication happens For satety reason and to prevent component breakdown akvays sich off the power Caution before remove and connect the component Check the compressor tank temperature sensor Does it conform to the sensor Replace the compressor tank characteristic chart temperature sensor YES 2 3 way valve closed YES Open the 2 3 way valve Check for gas leakage YES Repair the pipe flare or union nuts i i Feclaim and recharge refrigerant NO Check if expansion valve or strainer YES clogged ice formed expansion valve and or strainer Reclaim and recharge refrigerant Reclaim and recharge for a specified amount of fresh refrigerant Refrigerant cycle abnormality error again YES Replace outdoor unit PCB Replace outdoor unit compressor Procedure complete 123 16 4 27 F98 Input Over Current Detection Malfunction Decision Conditions e During operation of cooling and heating when an input over current X value in Total Running Current Control is detected by checking the input current value being detected by current transformer CT with the compressor running Malfunction Caused e Excessive refrigerant e Faulty outdoor unit PCB Troubleshooting For safety reason and to prevent component breakdown ahvays sich off the power Caution before remove and
51. bnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor heat sink temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent e off the power component breakdown always switch Check the connector connection Caution off the power before remove and connect the component Is the connector connection normal NO Connector poor contact e Correct the connection YES Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor Defect in outdoor discharge pipe temperature sensor Is the measured resistance of the outdoor gas pipe temperature sensor matches the value specified in its haracteristic chat Replace the outdoor discharge pipe characteristic chart temperature sensor YES Defect in outdoor unit PCB Replace the outdoor unit PCB 110 16 4 14 H36 Outdoor Gas Pipe Sensor Abnormality Malfunction Decision Conditions During startup and operation of cooling and heating the temperatures detected by the outdoor gas pipe temperature sensor are used to determine sensor errors Malfunction
52. bnormality indication starts again For safety reason and to prevent component breakdown always Caution switch off the power before remove Check the supply voltage and connect the component NO Supply voltage as specified Correct the power supply YES Operate the system Verify PFC abnormality by measuring DC voltage between P and N terminal at the outdoor unit PCB YES Is the DC voltage between P and N terminal normal between 28 4 Defect in circuitry 285 315Vdc Replace the outdoor unit PCB NO Check the compressor winding resistance Turn off the power supply and disconnect the harness U V and W Measure the winding resistance between U V V W and W U z Are the compressor s winding resistance U V V W W U uniform Replace the compressor YES Replace the outdoor unit PCB 118 16 4 22 F91 Refrigeration Cycle Abnormality Malfunction Decision Conditions During cooling compressor frequency Fcmax During heating compressor frequency Fhrated During cooling and heating operation running current 0 65A 1 65A During cooling indoor intake indoor pipe lt 4 C During heating indoor pipe indoor intake lt 5 C Multi Models Only e Gas shortage detection 1 A gas shortage is detected by checking the CT detected input current value and the compressor running frequency During startup and operating of cooling and heating input current lt 8 78 25
53. c at Different Piping Length e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr e 230 38 100 38 000 N 37 900 Outlet Air Temperature C 37 800 37 700 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 48 49 20 Piping Length m 7 240 7 220 7 200 7 180 Heating Capacity kW 7 160 7 140 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length 3 040 og Er 2 9 3 030 83 8 8 8 3020 3 010 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length 9 420 9 400 z o EX s lt o 9 380 9 360 L3 D 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length m 172 18 2 Sensible Capacity Chart CU E7NKE CU E7NKE 3 230V Outdoor Temp C Indoor wet 30 35 40 46 bulb temp TC SHC IP TC SHC IP TC SHC IP TC SHC IP 17 0 C 203 154 043 190 148 046 177 142 0 50 161 1 35 0 53 19 0 C 2 05 0 47 19 5 C 223 161 044 209 155 047 194 149 050 177 142 0 54 22 0 C 243 167
54. connect the component When F38 indication happens Get restarted and measure the input current the outdoor unit PCB Input current gt limit YES Turn off power supply Check the main circuit electrolytic capacitor Normal YES Repair the pipe flare or union nuts Reclaim and recharge refrigerant Check refrigerant amount NO Excess refrigerant YES and recharge with correct amount of refrigerant NO Replace outdoor unit PCB Replace outdoor unit compressor 124 16 4 28 F99 Output Over Current Detection Malfunction Decision Conditions e During operation of cooling and heating when an output over current DC peak current value at IPM Prevention Control is detected by checking the current that flows in the inverter Malfunction Caused e Faulty outdoor unit PCB e Faulty compressor Troubleshooting When F99 indication happens Check the compressor winding resistance Turn off the power and disconnect Caution Get restarted and measure the input current NO Input current gt limit the harness U V and W Measure the winding resistance between U V V W and W U Are the compressor s winding resistance YES U V V W or U W shorted NO e Checking the power transistor DC peak sensing circuitry For safety reason and to prevent component breakdown always switch off the power before remove and connect the component t
55. de abnormality will be stored in IC memory 16 2 2 Make a Diagnosis 1 Timer LED start to blink and the unit automatically stops the operation 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote controller display Note Display only for No transmitting signal no receiving sound and no Power LED blinking 4 Press the A or Y button on the remote controller The code abnormality will be displayed and signal will be transmitted to the main unit 5 Every press of the button up or down will increase abnormality numbers and transmit abnormality code signal to the main unit 6 When the latest abnormality code on the main unit and code transmitted from the remote controller are matched power LED will light up for 30 seconds and a beep sound continuously for 4 seconds will be heard If no codes are matched power LED will light up for 0 5 seconds and no sound will be heard 7 breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds 8 TheLED will be off if the unit is turned off or the RESET button on the main unit is pressed 16 2 3 To Display Memorized Error Code Protective Operation Turn power on 2 Press the CHECK button on the remote controller continuously for 5 seconds 3 will be displayed on the remote cont
56. e Turn off the power A component breakdown always switch Caution e Check the connector connection off the power before remove and connect the component Is the connector connection normal NO e Connector poor contact Correct the connection YES Check the outdoor discharge pipe temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor discharge pipe temperature sensor Defect in outdoor discharge pipe temperature sensor Is the measured resistance of the outdoor liquid pipe temperature sensor matches the value specified in its characteristic chart Replace the outdoor discharge pipe temperature sensor YES Defect in outdoor unit PCB the outdoor unit PCB 112 16 4 16 H97 Outdoor Fan Motor DC Motor Mechanism Locked Malfunction Decision Conditions e The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor Malfunction Caused Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall IC malfunction Operation error due to faulty outdoor unit PCB Troubleshooting When abnormality indication starts again For safety reason and to prevent A component breakdown always switch Caution off the power before remove and Turn off power
57. eating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr 230 37 000 36 000 35 000 34 000 33 000 32 000 Outlet Air Tempeature C 31 000 30 000 29 000 E 2 EL 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 3 800 3 600 LF 3 400 eT 3 200 3 000 2 800 2 600 2 400 2 200 5 4 3 2 4 0 1 2 3 4 5 6 7 8 9 10 Heating Capacity kW Outdoor Air Temperature C 3 700 3 500 EM 3 300 3 100 LL LETT 2 900 L T 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Current A Outdoor Air Temperature C 2 600 2 400 2 200 Gas Side Piping Pressure MPa 2 000 1 800 T T T T T T I 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 159 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr 34 900 e 230 34 800 34 700 34 600 Outlet Air Temperature C 34 500 34 400 ee 3 500 8 9 10 11 12 13 14 15 Piping Length 3 400 3 300 Heating Ca
58. ength 0 980 13 14 15 0 970 0 960 0 950 0 940 Gas Side Piping Pressure MPa 0 930 0 920 3 4 5 6 7 8 9 10 Piping Length m 4 100 11 12 13 14 15 4 000 Current A 3 900 3 800 3 4 5 6 7 8 9 10 Piping Length m 146 e Heating Characteristic Condition Indoor temperature 20 C Remote condition High fan speed Heat 30 C Comp Hz Fr Outlet Air Tempeature C Heating Capacity kW Current Gas Side Piping A Pressure MPa 39 000 230 37 000 35 000 33 000 31 000 29 000 4 600 1 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 4 100 3 600 3 100 2 600 1 0 1 2 3 4 5 6 7 8 9 Outdoor Air Temperature C 4 700 4 500 4 300 4 100 3 900 3 700 2 700 1 0 1 2 3 4 5 6 7 8 9 Outdoor Air Temperature C 2 600 2 500 2 400 2 300 1 0 1 2 3 4 5 6 7 8 9 Outdoor Air Temperature C 147 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr 34 700 e 230
59. ent component breakdown always switch Caution off the power before remove and connect the component Connector poor contact Correct the connection Is the measured resistance of the outdoor heat exchanger Defect in outdoor discharge pipe temperature sensor matches the value specified in its temperature sensor k characteristic chart Replace the outdoor discharge pipe temperature sensor Defect outdoor unit PCB the outdoor unit PCB 108 16 4 12 33 Unspecified Voltage between Indoor and Outdoor Malfunction Decision Conditions e The supply power is detected for its requirement by the indoor outdoor transmission Malfunction Caused e Wrong models interconnected e Wrong indoor unit and outdoor unit PCBs used e Indoor unit or outdoor unit PCB defective Troubleshooting When abnormality indication starts again For safety reason and to prevent component breakdown always switch Caution off the power before remove and connect the component Check indoor and outdoor units model number Is the indoor and outdoor unit model number matched Match the compatible model follow specification Replace the indoor and outdoor unit Check indoor and outdoor PCB part number and compare if they matched part list Change for the specified indoor or outdoor unit PCB 109 16 4 13 H34 Outdoor Heat Sink Temperature Sensor A
60. former CT abnormality Continuous for 5s Continuous for 5s Indoor intake air temperature sensor open or short circuit Compressor temperature sensor open or short circuit Current transformer faulty or compressor faulty Indoor intake air temperature sensor lead wire and connector Compressor temperature sensor lead wire and connector Outdoor PCB faulty or compressor faulty Indoor fan motor merchanism lock Continuous happen for 7 times Indoor fan motor lock or feedback abnormal Fan motor lead wire and connector Fan motor lock or block Indoor heat exchanger temperature sensor abnormality Continuous for 5s Indoor heat exchanger temperature sensor open or short circuit Indoor heat exchanger temperature sensor lead wire and connector Outdoor air temperature sensor abnormality Continuous for 5s Outdoor air temperature sensor open or short circuit Outdoor air temperature sensor lead wire and connector Outdoor heat exchanger temperature sensor 1 abnormality Outdoor discharge pipe temperature sensor abnormality Outdoor heat exchanger temperature sensor 2 abnormality Continuous for 5s Continuous for 5s Continuous for 5s Outdoor heat exchanger temperature sensor 1 open or short circuit Outdoor discharge pipe temperature sensor open or short circuit Outdoor heat exchanger temperature sensor 2 open or short circuit Outdoor heat exchanger tem
61. he outdoor unit PCB Compressor defective due to winding shorted Replace compressor Outdoor electronic circuit defect due to power transistor short Replace the outdoor unit PCB e Never touch any live parts for at least 10 minutes after turning off the circuit breaker f unavoidable necessary to touch a live part make sure the power transistor s supply voltage is below 50V using the tester Forthe UVW make measurement at the Faston terminal on the board of the relay connector Tester s negative terminal Power transistor UVW Power transistor UVW Tester s positive terminal UVW Power transistor UVW Power transistor Normal resistance Several kO to several MO Abnormal resistance 0 125 17 Disassembly and Assembly Instructions AN WARNING High Voltage are generated in the electrical parts area by the capacitor Ensure that the capacitor has discharged sufficiently before proceeding with repair work Failure to heed this caution may result in electric shocks 17 1 CS E7NK CS E9NK CS E12NK CS E15NK CS XE7NK CS XE9NK CS XE12NK CS XE15NK 17 1 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 17 1 1 1 remove front grille Panasonic 3 Hold both sides of the frontgrille and remove it by pulling up and toward yourself gently 1 Lift to open the horizontal vane gently 2 Remove 2 cap
62. igure 7 18 Remove the bearing by pulling it out gently 17 Remove the screw from the evaporator Figure 8 128 19 Push the holdfast to the left and lift up the evapaator Evaporator Cross flow fan 21 Fan motor can be removed after the removal of cross flow fan Reminder To reinstall the fan motor adjust the fan motor connector to 45 towards you before fixing control board 20 Remove the cross flow fan from the unit by pulling it to the left and downward Figure 9 Cross Flow Fan Reminder To reinstall the cross flow fan ensure cross flow fan is in line as shown in figure 10 Figure 10 129 17 2 CS E18NK CS E21NK CS XE18NK CS XE21NK 17 2 1 Indoor Electronic Controllers Cross Flow Fan and Indoor Fan Motor Removal Procedures 17 2 1 1 To remove front grille amp 3 both sides of the frontgrille and remove it by pulling up and toward yourself gently Lift to open the horizontal vane and intake grille gently 2 Remove 3 caps and 4 screws at the bottom of discharge vane Figure 11 17 2 1 2 To remove horizontal vane 4 Bend the horizontal vane slightly 5 Release the hooks from 2 6 Release the hook that holds the to remove vane s shaft from bady fulcrums vertical vanes Figure 12 130 17 2 1 3 gt remove power electronic controller 2 Hooks left hand side Figure 14 12 Pull out the main electronic controller controller halfway
63. indoor intake air temperature and indoor pipe temperature is above 10 C or indoor pipe temperature is below 1 0 C Remark When the indoor standby unit is freezing the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to other indoor unit s Malfunction Caused e Wrong wiring connection e Faulty sensor e Faulty expansion valve Troubleshooting When F17 indication happens For safety reason and to prevent A component breakdown always switch Caution off the power before remove and Check the system wiring connection connect the component Is the wiring connection ok NO e Perform Auto Wiring to correct the wiring connection YES Check the indoor intake air and indoor pipe temperature sensors Does it conform to the sensor characteristic chart NO N Replace the indoor intake air or indoor pipe temperature sensor YES Check the expansion valve YES Is the expansion valve Replace the solenoid coil or expansion valve NO Replace outdoor unit PCB 117 16 4 21 F90 Power Factor Correction Protection Malfunction Decision Conditions e During startup and operation of cooling and heating when Power Factor Correction PFC protection circuitry at the outdoor unit main PCB senses abnormal high DC voltage level Malfunction Caused e DC voltage peak due to power supply surge e DC voltage peak due to compressor windings not uniform e Faulty outdoor PCB Troubleshooting When a
64. l difference air temperatures More than 8 C Value of electric Higher than specified Dusty condenser Measuring electric current current during operation preventing heat radiation during operation Cooling Mode Measuring gas side pressure Inefficient compressor 93 16 1 1 Relationship between the condition of the air conditioner and pressure and electric current Cooling Mode Heating Mode Condition of the air conditioner Low Pressure High Pressure Low Pressure High Pressure Insufficient refrigerant gas leakage Clogged capillary tube or 2 2 2 Strainer Short circuit in the indoor unit a a Heat radiation deficiency 2 2 2 of the outdoor unit Inefficient compression a a a a Carry out the measurement of pressure electric current and temperature fifteen minutes after an operation is started 94 16 2 Breakdown Self Diagnosis Function 16 24 Self Diagnosis Function Three Digits Alphanumeric Code When the latest abnormality code on the main e Once abnormality has occurred during operation 6 the unit will stop its operation and Timer LED blinks e Although Timer LED goes off when power supply is turned off if the unit is operated under a breakdown condition the LED will light up again e operation after breakdown repair the Timer LED will no more blink The last error co
65. ng when the compressor OL is activated o Heat Sink Overheating During operation of cooling and heating when heat sink temperature data 90 C is detected by the heat sink temperature sensor Malfunction Caused IPM overheats due to short circuit of hot discharge air flow IPM overheats due to defective of outdoor fan motor overheats due to defective of internal circuitry of IPM e IPM overheats due to defective IPM temperature sensor Multi Models Only o Compressor OL connector poor contact o Compressor OL faulty Troubleshooting When F96 indication happens Check the outdoor unit installation condition during cooling or soft dry operation Is there any improper heat radiation YES NO Is outdoor fan motor operating NO YES 122 For safety reason and to prevent component breakdown always switch off the power before remove and connect the component Reinstall the outdoor unit Remove the obstacle s Clean the outdoor heat exchanger Replace the outdoor fan motor 5 Defect in IPM Replace the outdoor unit PCB 16 4 26 F97 Compressor Overheating Malfunction Decision Conditions e During operation of cooling and heating when compressor tank temperature data 112 C is detected by the compressor tank temperature sensor Malfunction Caused e Faulty compressor tank temperature sensor 2 3 way valve closed Refrigerant shortage refrigerant leakage F
66. o 19 REACTOR 1 G0C193J00004 20 TERMINAL COVER 1 CWH171039A 21 NUT TERMINAL COVER 1 CWH7080300J 22 SOUND PROOF BOARD 1 CWH151274 23 SOUND PROOF MATERIAL 1 CWG302317 23 SOUND PROOF MATERIAL 1 CWG302726 23 SOUND PROOF MATERIAL 1 CWG302701 24 SENSOR 1 50 2830 o 25 CONTROL BOARD COVER TOP 1 CWH131473 26 ELECTRONIC CONTROLLER MAIN 1 CWA73C6657R CWAT73C6659R o 27 TERMINAL BOARD ASSY 1 CWA28K1110J o 28 CABINET SIDE PLATE CO 1 CWE04C1296 lt 29 SENSOR CO AIR TEMP AND TEMP 1 CWAS0C2825 o 30 CABINET SIDE PLATE LEFT 1 CWE041580A 31 CABINET FRONT PLATE 1 CWE06C1360 32 CABINET TOP PLATE 1 CWE031148A 33 PLATE COVER TERMINAL 1 CWH131470A lt 34 CONTROL BOARD COVER 1 CWH13C1253 lt 38 4 WAYS VALVE 1 CWB001037J 39 V COIL COMPLETE 1 CWA43C2447 o 40 WIRE NET 1 CWD041166A 45 BAG COMPLETE 1 CWG87C900 lt 46 1 CWG861078 47 BASE 1 CWG62C1144 48 SHOCK ABSORBER RIGHT 1 CWG713415 49 SHOCK ABSORBER LEFT 1 CWG713416 50 C C CASE 1 CWG568358 Allparts are supplied from Malaysia Vendor Code 00029488 O marked parts are recommended to be kept in stock 187 19 2 3 CU E18NKE CU E21NKE N N Y M 22
67. oO Outlet Air Tempeature C 13 700 13 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 7 800 7 300 6 800 Fr TTE 5 800 wW o o Cooling Capacity KW 5 300 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 10 700 9 700 8 700 7 700 Current A 6 700 5 700 4 700 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 0 960 0 940 TT 0 920 0 900 0 880 0 860 bxc al 0 840 0 820 Lr 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Gas Side Piping Pressure MPa Outdoor Air Temperature C 169 Cooling Characteristic at Different Piping Length e Piping Length Characteristic Condition Indoor temperature 27 19 C 35 Remote condition High fan speed Cool 16 C Comp Hz Fc Outlet Air Temperature C Cooling Capacity KW Gas Side Piping Current Pressure MPa A 15 100 e 230 15 000 14 900 14 800 6 400 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Piping Length 6
68. or connector to 45 towards you before fixing control board Figure 20 Cross Flow Fan Reminder To reinstall the cross flow fan ensure cross flow fan is in line as shown in figure 21 Figure 21 133 17 3 Outdoor Electronic Controller Removal Procedure 17 3 1 CU E7NKE CU E9NKE CU E7NKE 3 CU E9NKE 3 CU E12NKE 3 A Caution When handling electronic controller be careful of electrostatic discharge 1 Remove the 3 screws of the Top Panel Screw Top Panel Screws Fig 1 2 Remove the 6 screws of the Front Panel Screws N Front Panel Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cover of the Control Board by 4 hooks Hooks Top Cover Hooks 134 5 Remove the Control Board as follows Control Board Release 3 Terminal Connectors and Earth Wire Screw Release 5 Connectors Remove 2 Screws Release Earth Wire Screw Fig 4 Remove the Terminal Cover and 3 Terminal Compressor Control Board Compressor Fig 5 Electronic Controller Control Board 17 3 2 CU E12NKE CU E15NKE A Caution When handling electronic controller be careful of electrostatic discharge 1 Remove the 5 screws of the Top Panel Screws Top Panel Screws Fig 1 2 Remove the 8 screws of the Front Panel Front Panel Screws Fig 2 3 Remove the screw of the Terminal Board Cover 4 Remove the Top Cover of the Control Board by 4 hooks
69. pacity kW 3 200 A 2 400 Piping Length 2 390 2 380 2 370 Gas Side Piping Pressure MPa 2 360 2 350 2 340 3 420 8 9 10 11 12 13 14 15 Piping Length m 3 400 3 380 Current A 3 360 3 340 3 320 A 8 9 10 11 12 13 14 15 Piping Length 160 18 1 7 12 3 e Cooling Characteristic Condition Indoor temperature 27 19 Remote condition High fan speed Cool 16 C Comp Hz e 230 16 200 15 700 15 200 Outlet Air Tempeature C 14 700 Lo l a 14 200 ee 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 4 200 4 000 3 800 3 600 3 400 Cooling Capacity kW 3 200 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 3 000 Outdoor Air Temperature C 5 100 4 600 4 100 3 600 Current A 3 100 2 100 4 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 Outdoor Air Temperature C 1 080 0 980 a 0 880 Gas Side Piping Pressure MPa 0 780 0 680 5 7 9 11 13 15 17 19 21 23 25 27
70. perature sensor 1 lead wire and connector Outdoor discharge pipe temperature sensor lead wire and connector Outdoor heat exchanger temperature sensor 2 lead wire and connector Indoor outdoor misconnection abnormality Indoor and outdoor rated voltage different Indoor and outdoor units check Outdoor heat sink temperature sensor abnormality Outdoor gas pipe temperature sensor abnormality Outdoor liquid pipe temperature sensor abnormality Continuous for 2s Continuous for 5s Heating protection operation only Continuous for 5s Cooling protection operation only Outdoor heat sink temperature sensor open or short circuit Outdoor gas pipe temperature sensor open or short circuit Outdoor liquid pipe temperature sensor open or short circuit Outdoor heat sink sensor Outdoor gas pipe temperature sensor lead wire and connector Outdoor liquid pipe temperature sensor lead wire and connector Indoor Outdoor mismatch brand code Abnormal indoor operating unit or standby units 3 times happen within 40 minutes 96 Brand code not match Wrong wiring and connecting pipe expansion valve abnormality indoor heat exchanger sensor open circuit Check indoor unit and outdoor unit Check indoor outdoor connection wire and connection pipe Indoor heat exchanger sensor lead wire and connector Expansion valve and lead wire and connector
71. ponent Plug out connector from the indoor unit PCB uti breakdown always switch off the power Measure the resistance of the indoor pipe temperature before remove and connect the component Sensor Is the connector connection normal NO e Connector poor contact Correct the connection YES Check the outdoor air temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor intake air temperature sensor Is the measured resistance of the outdoor intake air Defect in outdoor intake air temperature sensor temperature sensor matches the value specified in its Replace the outdoor intake air temperature characteristic chart sensor YES Detect in outdoor unit PCB e Replace the outdoor unit Sensor Thermistor Characteristics D Pipe temp Sensor Intake Air Temp Sensor Resistance 9 Sh 10 0 10 20 30 40 50 J Temperature C 104 16 4 8 H27 Outdoor Air Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection Turn off the power For safety
72. ppen PFC circuit protection within 10 minutes F91 Refrigeration cycle 2 times happen abnormality within 20 minutes F93 Compressor abnormal 4 times happen revolution within 20 minutes F94 Compressor discharge 4 times happen pressure overshoot within 30 minutes protection Outdoor cooling high 4 times happen pressure protection within 20 minutes Power transistor module 4 times happen overheating protection within 30 minutes Power factor correction Outdoor PCB faulty circuit abnormal Refrigeration cycle abnormal Insufficient refrigerant or valve close Compressor abnormal Power transistor module faulty or revolution compressor lock Compressor discharge Check refrigeration system pressure overshoot Cooling high pressure Check refrigeration system protection Outdoor air circuit PCB faulty Outdoor air circuit fan motor Power transistor module overheat Compressor overheating protection 3 times happen within 30 minutes F98 Total running current 3 times happen protection within 20 minutes F99 Continuous happen for 7 times Outdoor direct current DC peak detection Wrong wiring and connecting within 40 minutes pipe expansion valve leakage indoor heat exchanger sensor open circuit 97 Compressor overheat Insufficient refrigerant Total current protection Check refrigeration system Power source or compressor lock Power transistor module Power transistor mod
73. re C 5 900 5 400 4 900 4 400 Heating Capacity kW 3 900 3 400 p 5 4 3 2 4 0 1 2 3 4 5 6 7 8 9 10 Outdoor Air Temperature C 7 000 6 800 6 600 6 400 LET 6 200 LET 6 000 5 800 Current A 5 600 5 4 3 2 4 0 1 2 3 4 5 6 T 8 9 10 Outdoor Air Temperature C 3 100 3 000 2 900 2 800 2 700 Louer 2 600 2 500 2 300 T T T T T T I 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9 10 Gas Side Piping Pressure MPa Outdoor Air Temperature C 151 e Piping Length Characteristic Condition Indoor temperature 20 C 7 6 C Remote condition High fan speed Heat 30 C Comp Hz Fr 38 800 e 230 38 700 38 600 38 500 38 400 Outlet Air Temperature C 38 300 38 200 3 4 5 6 7 8 9 10 Piping Length m 5 350 11 13 5 300 5 250 5 200 5 150 Heating Capacity kW 5 100 5 050 Piping Length 2 950 11 12 13 14 15 2 930 R 2 910 Gas Side Piping Pressure MPa 2 890 2 870 3 4 5 6 7 8 9 10 Piping Length m 6 700 12 13 14 15 6 600 Current A 6 500
74. roller display Note Display only for No transmitting signal no receiving sound and no Power LED blinking 4 Press the TIMER A or V button on the remote controller The code no abnormality will be displayed and signal will be transmitted to the main unit The power LED lights up If no abnormality is stored in the memory three beeps sound will be heard 5 Every press of the button up or down will increase abnormality numbers and transmit abnormality code signal to the main unit 95 unit and code transmitted from the remote controller are matched power LED will light up for 30 seconds and a beep sound continuously for 4 seconds will be heard If no codes are matched power LED will light up for 0 5 seconds and no sound will be heard 7 breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds 8 The same diagnosis can be repeated by turning power on again AIR CONDITIONER ORDINES E DRY pg MILD AIR ud AUTO Econav ctm COMFORT MODE 4 MILD TEMP gt POWERFUL QUE U ET c FAN SPEED AIR swig Check button Som D 16 2 4 To Clear Memorized Error Code after Repair Protective Operation Turn power on in standby condition 2 Press the AUTO but
75. roubleshooting When abnormality indication starts again For safety reason and to prevent Turn aff the power check 2 3 wey valve component breakdown always switch Caution the power before remove and connect the component la the 2 3 way valve closed YES Open the 2 3 way valve NO Check for gas leakage Dil oozing out from 2 3 wey valve YES Repair the pipe flare or union nuts and recharge refrigerant NO Force heating operation and measure the current from the outdoor LIVE terminal the current less than 147 YES Defect in Replace the outdoor unit system running force heating check the discharge pressure ls the pressure unchanged same as when compressor stops YES Replace the outdoor PCB NO hie system running force heating check by touching to confirm the compressor for low compression Compressor discharge pipe is cold Compressor body is warm Replace the compressor 102 16 4 6 H19 Indoor Fan Motor DC Motor Mechanism Locked Malfunction Decision Conditions e rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor feedback of rotation gt 2550rpm or lt 50rpm Malfunction Caused e Operation stops due to short circuit inside the fan motor winding Operation stops due to breaking of wire inside the fan motor Operation stops due to breaking of fan motor lead wires Operation stops due to Hall I
76. rtage refrigerant leakage Clogged expansion valve or strainer Faulty indoor pipe temperature sensor Faulty indoor unit PCB Troubleshooting When abnormality indication starts again Check the air passage Is there short circuit Check the indoor unit air filter Is the air filter dirty o Dust accumulation on the indoor unit heat exchanger Check the dust accumulation on the indoor unit heat exchanger Is the indoor unit heat exchanger Check if 2 3 way valve closed NO Check if indoor fan motor operates normally YES Check for gas leakage Is oozing out from the 2 3 way valve Check if expansion valve or strainer clogged ice formed o Check the indoor pipe temperature sensor Does it conform to the sensor characteristic chart YES 11 For safety reason and to prevent component breakdown always switch Caution YES YES YES YES YES YES NO off the power before remove and connect the component Provide sufficient air passage Clean the air filter Clean the indoor unit heat exchanger Open the 2 3 way valve Replace the indoor unit fan motor and or indoor unit PCB Repair the pipe flare or union nuts Reclaim and recharge refrigerant Reclaim and recharge with correct amount of refrigerant Replace the indoor pipe temperature sensor the indoor unit PCB 16 4 19 F11 4 way valve
77. s and 2 screws at the bottom of discharge vane Figure 1 17 1 1 2 To remove power electronic controller 2 Hooks left hand side Remove the control board cover by releasing the 2 hooks Figure 2 126 Pull out the main 10 Detach 6 connectors as labeled from electronic controller the electronic controller Then pull out controller halfway main controller gently Je WHT RY PWR Remove screw to gt remove terminal board complete 9 CN FM Detach the HV White amp O 04 RED HV Black terminal 29 wires 1 GND then remove the high voltage p CN STM2 generator m 2 CN MSENS Detach the CN DISP om CN TH connector then remove cH CN CLN the indicator complete 11 Detach AC303 WHT RY PWR connector Black and Brown from the electronic controller Detach the Earth wire 42 Detach AC304 RED from Terminal Board Figure 3 Figure 4 17 1 1 3 remove discharge grille 13 Pull out to remove the drain hose from the discharge grille a 14 Then pull the discharge grille downward gently to dismantle it Figure 5 127 17 1 1 4 To remove control board Remove 4 screws holding the control board then pull out the control board Figure 6 17 1 1 5 To remove cross flow fan and indoor fan motor 16 Remove the screw that holding the cross flow fan and fan motor axis F
78. ton for 5 seconds A beep receiving sound on the main unit to operate the unit at Forced Cooling Operation modes 3 Press the CHECK button on the remote controller for about 1 second with a pointed object to transmit signal to main unit A beep sound is heard from main unit and the data is cleared 16 2 5 Temporary Operation Depending On Breakdown Status 1 Press the AUTO button A beep receiving sound on the main unit to operate the unit Remote control will become possible 2 The unit can temporarily be used until repaired 16 3 Error Codes Table Diagnosis Abnormality Abnormality Protection z f Problem Check location display Protection control Judgement operation H00 No memory of failure Normal operation 11 Indoor outdoor After operation for Indoor fan only Indoor outdoor Indoor outdoor wire terminal abnormal 1 minute operation can communication not establish Indoor outdoor PCB communication Indoor unit capacity unmatched start by entering into force cooling operation 90s after power supply Total indoor capability more than maximum limit or less than minimum limit or number of indoor unit less than two Indoor outdoor connection wire Indoor outdoor connection wire Indoor outdoor PCB Specification and combination table in catalogue Indoor intake air temperature sensor abnormality Compressor temperature sensor abnormality Outdoor current trans
79. ule faulty or current protection compressor lock 16 4 Self diagnosis Method 16 4 1 H11 Indoor Outdoor Abnormal Communication Malfunction Decision Conditions e During startup and operation of cooling and heating the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal Malfunction Caused e Faulty indoor unit PCB e Faulty outdoor unit PCB Indoor unit outdoor unit signal transmission error due to wrong wiring e Indoor unit outdoor unit signal transmission error due to breaking of wire in the connection wires between the indoor and outdoor units e Indoor unit outdoor unit signal transmission error due to disturbed power supply waveform Troubleshooting When abnormality indication starts again For safety reason and to prevent Check the indoor outdoor units connection wires A component breakdown always switch Caution off the power before remove and connect the component Is there any wiring error YES Correct the indoor outdoor units connection wires NO Disconnect terminal 3 wire and measure Vdc between terminal 2 amp 3 from the outdoor unit 2 Is the Vdc fluctuate between 20 70Vdc NO Replace outdoor PCB YES Reconnect terminal 3 wire and measure Vdc between terminal 2 amp 3 from the outdoor unit Is the Vdc fluctuate between 20 50Vdc NO Replace indoor unit PCB 98 16 4 2 H12 Indoor Outdoor Capacity Rank Mismatched Malfunction
80. ve and Check the connector connection connect the component No Is the connector connection normal Connector poor contact Correct the connection Resistance 49 5 Check the outdoor heat exchanger temperature sensor Plug out connector from the outdoor unit PCB Measure the resistance of the outdoor heat exchanger temperature sensor Defect in outdoor heat exchanger Is the measured resistance of the outdoor heat exchanger temperature sensor temperature sensor matches the value specified in its Replace the outdoor heat exchanger characteristic chart temperature sensor YES Defect in outdoor unit PCB e Replace the outdoor unit PCB Sensor Thermistor Characteristics i D Outdoor Air Sensor Outdoor Heat Exchanger 60 Sensor 50 40 30 20 q s 10 0 10 20 30 40 50 p Temperature C 106 16 4 10 H30 Compressor Discharge Temperature Sensor Abnormality Malfunction Decision Conditions e During startup and operation of cooling and heating the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors Malfunction Caused e Faulty connector connection e Faulty sensor e Faulty PCB Troubleshooting When abnormality indication starts again Check the connector connection For safety reason and to prevent Turn off the power I component breakdown always switch

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