Service Manual WDF 60Hz (Preliminary Version)
Contents
1. BLACK BLUE CAP BLUE BLACK 5 R M COMP Gay 7 Protection Function 7 1 Proper symbols and their meaning m T1 Indoor ambient temperature 2 Indoor evaporator temperature m T3 Outdoor condenser temperature 5 Setting temperature through the remote controller Window F4 10 Version 0 T 7 7 2 Protection Function 2 1 Three minutes delay at restart for compressor 2 2 Anti freezing protection at cooling or dry mode Anti freezing control according to T2 Indoor evaporator temperature If the evaporator pipe temperature had been lower than 1 C for 14 minutes the evaporator anti freezing protection will be activated The compressor will keep off in the following 5 minutes 5 minutes later if the evaporator pipe temperature is still lower than 4 C the compressor will stay off Otherwise the compressor will be started and the function is cancelled Anti freezing control according to TIME Note T Note If the lasting time of compressor which is continuously running has got to 105 minutes with fan motor operating under Med or Low speed and the indoor ambient temperature lower than 26 C the anti freezing function will be activated The compressor will keep off for 3 minutes If the compressor stops operation the time will be cleared 2 3 Anti frosting protection and defect at cooling or dry mode 3 minutes later when compressor is running if T2 has been le2. eene 11 7 2 4 Electronic TUNCUON 12 7 3 Temperature sensor is open circuit or short circuit 13 8 ielrEu Pic 13 8 1 Select the best location ecrire erre inni ik eki geveven oye besoin exo syen eo a 13 9 2 Check oft installation a e on ace Do ak a Sade n a n ca eee po n n 14 8 3 eA mc 14 8 4 How Rri 15 9 sonen an 16 10 Characteristic of temperature 17 TT Troubl shooting euenit a po dtan aa on it krapo asa Depans nn 18 12 Exploded view and part 26 1 Precaution 1 1 Safety Precaution To prevent injury to the user or other people and property damage the following instructions must be followed Incorrect operation due to ignoring instruction will cause harm or damage Before service unit be sure to read this service manual at first 1 2 Warning INSTALLATION Do not use a defective or underrated circuit brea
3. o 0 Sound pressure level HML dBA 54 51 47 Moisture removal Condensate drain tube OD15 Refrigerant control mon Capillary Capillary Compressor type model Rotary Sound pressure level pmo moon k B m H M L 63 60 57 64 61 57 m m o N k Package dimensions 685x430x620 Packaged weight k 40 Stacking height 5 levels Refrigerant type R410A Refrigerant charge Operation control type mon Remote control A m A Dimensions WxtixD 600x380x560 600x380x560 g a AWWR WDFO24 012 Power supply V Ph Hz 220 240V Single 60Hz 220 240V Single 60Hz R dB m dB m m Circuit breaker rating Fan speeds H M L Fan type amp quantity mon Cross flow fan x1 Cross flow fan x1 RPM 920 820 710 950 850 760 Air flow 9 H M L m3 hr External static pressure 810 750 680 830 790 720 I hr Moisture removal 0015 0015 Condensate drain tube Capillary Capillary Refrigerant control Sound pressure level dB A 61 59 57 58 57 56 Dimensions WxHxD mm 660x428x680 660x428x780 Compressor type model Weight 5 Package dimensions 746x515x815 Packaged weight 57 Stacking height 5 levels Refrigerant type mon R410A Refrigerant charge 0 75 Operation control type mon Remote control E CD W Sound pressure level H M L 58 56 52 55 54 53 m A m kg m kg g Window F4 6 Version O
4. 3 Dimension 4 Function and control panel 4 1 Function H Model Unit Dimensions WxHxD mm AWWR WDFO009 C12 600x380x560 AWWR WDF012 C12 600x380x560 AWWR WDFO018 C12 660x428x680 AWWR WDFO24 C12 660x428x780 XOperation mode Cooling Fan Dry Auto XFresh air switch XLED display XSleep mode X Swing function XSelf diagnosis function X Timer function Window WDF 60Hz Version 0 Airwell XAnti freezing control in cooling mode or drying mode Prevent the water being freezed on evaporator by sensing the evaporator pipe temperature in cooling mode XTime Delay Safety Restarting is for approx 3 minutes X Auto restart When the power supply is interrupted and then restore the air conditioners automatically restore the previous function setting 4 2 Control panel Q ai lt HIGH MED LOW LIMER FAN DRY Q swn TEMP L SWING SLEEP MODE 6 O POWER 1 ON OFF OPERATION BUTTON This button turns the air conditioner ON and OFF 21 SWING BUTTON Press the SWING keypad for the models with swing feature only to activate the automatic air swing feature To stop the air swing feature press the SWING keypad again Press the SWING keypad for 2 seconds will activate the SLEEP mode which can reduce noise creating a comfortable sleeping 3 TIMER BUTTON Press the TIMER keypad to activate the auto start auto stop timer function Auto Start S
5. 8 Pipe temperature sensor assembly 1 202440500004 8 9 Ambient temperature sensor assembly 1 202301310069 8 10 Capacitor offanmotor 1 202401100407 8 1 _ Main control board assembly 1 201321790086 812 __ Louver motor 1 202400100128 9 j Freshardor 1 201121790028 10 Horizontal louver 1 201121790029 11 Chassisassemby 1 201221790265 12 Evaporator base 1 201121790198 13 Cabinet assembly 1 201221790231 14 Ventilation ring 1 201121790206 15 Volute shell below 16 Evaporator coil assembly 17 Compressor 18 Suction pipe assembly 19 Capillary assembly EN 22 23 jaja a a a a Volute shell 24 Supporter assembly of fan motor 25 Front separating board Asynchronous motor 27 Axialflowfan 28 Butsrap 29 Rearseparating 3 381 5 6 7 8 9 1 2 3 4 7 8 9 3 1 1 1 1 1 2 2 2 2 2 2 2 3 Installation accessory 33 1 201120400701 Drain stopper 202720300201 Window WDF 60Hz 27 Version 0 Airwell Exploded View AWWR WDF012 C12 Window F4 28 Version 0 Spare part list AWWR WDF012 C12 No Part Name 1 16 Cover of control panel 8 Electronic control box assembly 1 203321790288 8 Electronic controlbox
6. BOMCode 1 Panelassembly po 11 J Fonpanl 0 0 0 0 1 po e 6 Cover of control panel 1 201120990084 Fresh air door 8 Electronic control box assembly 1 203321990237 87 Powercod 1 202420590012 8 8 Pipe temperature sensor assembly 1 202440500004 8 9 Ambient temperature sensor assembly 1 202301310069 Capacitor clip Chassis assembly Drain stopper 1 1 Front separating board Compressor Capillary assembly 1 201621990621 Discharge pipe assembly 1 201621990810 8 7 8 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 26 27 28 29 30 31 32 33 34 39 Em Ad m 12 13 14 15 Eran 18 19 20 21 22 Voluteshell below 23 24 26 27 28 29 30 91 32 3 34 39 Window WDF 60Hz 31 Version 0 Airwell Exploded view AWWR WDFO24 C12 OO A A CO n W OO ae Window F4 32 Version 0 Spare part list AWWR WDF024 C12 No Name Quantity Code 1 Frontpanelassembly 1 11 JPanelassmby 5 6 Cover of control panel 1 201120990084 8 Electronic control box assembly 1 203322090133 8 9 Pipe temperature sensor assembly _ 1 202440500004 Insulation plate AC contactor 9 Cover of electronic control box
7. 1 201221790230 8 2 Capacitor of compressor 1 202401000078 83 Capacitor ctp 1 201200100002 87 Powercod 1 202402260052 8 8 Pipe temperature sensor assembly 1 202440500004 8 9 Ambient temperature sensor assembly 1 202301310069 8 10 Capacitor of tan motor 1 202401100407 8 1 _ Main control board assembly 1 201321790086 812 __ Louver motor 1 202400100128 9 Freshardoor 1 201121790028 10 Horizontal louver 1 201121790029 11 Chassisassemby 1 201221790265 12 Evaporator base 1 201121790198 13 Cabinet assembly 1 201221790231 14 Ventilation ring 1 201121790206 15 Volute shell below 16 Evaporator coil assembly 17 Compressor 18 Suction pipe assembly 19 Capillary assembly EN 22 23 jaja a a a a Volute shell 24 Supporter assembly of fan motor 25 Front separating board Asynchronous motor 27 Axialflowfan O 28 Butsrap 29 Rearseparating 3 381 5 6 7 8 9 1 2 3 4 7 8 9 3 1 1 1 1 1 2 2 2 2 2 2 2 3 Installation accessory 33 1 201120400701 Drain stopper 202720300201 Window WDF 60Hz 29 Version 0 Arirwell Exploded view AWWR WDF018 C12 Window F4 30 Version 0 Spare part list AWWR WDFO018 C12 No Name Quantity
8. 1 201222190135 19 Front separating board 20 shell 21 Centitugalfan 22 Volute shell below 23 Ventilation ring 24 Evaporator coil assembly 26 Compressor 28 29 Capillary assembly Discharge pipe assembly 30 Condenser assembly Front cover 32 Buttstrap 33 Rearcover O 19 20 21 22 23 24 26 27 28 29 30 32 33 Window WDF 60Hz 33 Version 0 rwell SERVICE MANUAL Window WDF 60Hz Series
9. Residential AIRWELL ELECTRA a JOHNSON Window WDF Series Models AWWR WDF009 C12 AWWR WDF012 C12 AWWR WDF018 C12 AWWR WDF024 C12 REFRIGERANT R410A SM WDF60Hz 1 1 GB COOL ONLY FEB 2014 CONTENTS 1 1 Safety Pr GautiON ka vii vi x Em 1 Uarul 1 yim an banann 5 J DIMENSION CD 7 4 Function and control panel Lees crecer eere rr reete nn nr rana nnmnnn nnmnnn nnmnnn nnmnnn nnmnnn 7 FUNCUON ei ooo eko 7 4 2 Control Panel Ems 8 5 Refrigerant Cycle 9 6 Witing DIAGRAM 10 7 Protection FUNCOM ee 10 7 1 Proper symbols and their meaning eese esee eene nennen nnne nnn nnne nnns 10 7 2 11 7 2 1 Three minutes delay at restart for compressor sesenta 11 7 2 2 Anti freezing protection at cooling or dry mode eese enne enne nnne nnana 11 7 2 3 Anti frosting protection and defect at cooling or dry mode
10. function is disabled Window F4 12 Version 0 3 The speed of indoor fan can be optionally chosen as High Low 7 3 Temperature sensor is open circuit or short circuit Defect code malfunction explanation rM Room temperature sensor error En Evaporator temperature sensor error Condenser temperature sensor error Evaporator de frosting defect Malfunction display When the malfunction happened at the same time the priority is Er En EO Ed 8 Installation details 8 1 Select the best location Top View Side View o 2 ve A 750 1500mm 1 To avoid vibration and noise make sure the unit is installed securely and firmly 2 Install the unit where the sunlight does not shine directly on the unit If the unit receives direct sunlight build an awning to shade the cabinet Window WDF 60Hz 13 Version 0 Airwell 3 There should be no obstacle such as a fence or wall within 500mm from the back of the ambient because it will prevent heat radiation of the condenser 4 Restriction of outside air will greatly reduce the cooling and heating efficiency of the air Conditioner 5 Install the unit on a slight angle so that an condensate formed will not enter the room about 10mm or 1 4 bubble with level 6 Install the unit with its bottom portion 75 1500mm above the floor level 7 The power cord must be connected to an independent circ
11. ioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open Moisture may condense and wet or damage furniture Take care to ensure that power cable could not be pulled out or damaged during operation There is risk of fire or electric shock Do not place anything on the power cable There is risk of fire or electric shock Do not plug or unplug the power supply plug during operation There is risk of fire or electric shock Do not touch operation the product with wet hands There is risk of fire or electric shock Do not place a heater or other appliance near the power cable There is risk of fire and electric shock Do not allow water to run into electric parts It may cause fire failure of the product or electric shock Do not store or use flammable gas or combustible near the product There is risk of fire or failure of product Do not use the product in a tightly closed space for a long time Oxygen deficiency could occur When flammable gas leaks turn off the gas and open a window for ventilation before turn the product on Do not use the telephone or turn switches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or disconnect Window F4 2 Version O the power supply cable There is
12. ker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized service center Do not disassemble or repair the product there is risk of fire or electric shock Always ground the product There is risk of fire or electric shock Install the panel and the cover of control box securely There is risk of fire of electric shock e Always install a dedicated circuit and breaker Improper wiring or installation may cause fore or electric shock Use the correctly rated breaker of fuse There is risk of fire or electric shock Do not modify or extend the power cable There is risk of fire or electric shock Do not install remove or reinstall the unit by yourself customer There is risk of fire electric shock explosion or injury e Be caution when unpacking and installing the product Sharp edges could cause injury be especially careful of the case edges and the fins on the condenser Window WDF 60Hz 1 Version 0 Airwell and evaporator For installation always contact the dealer or an Authorized service center There is risk of fire electric shock explosion or injury Do not install the product on a defective installation stand It may cause injury accident or damage to the product Be sure the installation area does not deteriorate with age If the base collapses the air condit
13. nnection may cause water leakage e Keep level even when installing the product To avoid vibration of water leakage Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods It may cause a problem for your neighbors Window WDF 60Hz 3 Version 0 Airwell e Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation OPERATIONAL Do not expose the skin directly to cool air for long periods of time Do not sit in the draft This could harm to your health Do not use the product for special purposes such as preserving foods works of art etc It is a consumer air conditioner not a precision refrigerant system There is risk of damage or loss of property Do not block the inlet or outlet of air flow It may cause product failure Use a soft cloth to clean Do not use harsh detergents solvents etc There is risk of fire electric shock or damage to the plastic parts of the product Do not touch the metal parts of the product when removing the air filter They are very sharp There is risk of personal injury Do not step on pr put anything on the product outdoor units There is risk of pers
14. onal injury and failure of product Always insert the filter securely Clean the filter every two weeks or more often if necessary A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage Do not insert hands or other object through air inlet or outlet while the product is operated There are sharp and moving parts that could cause personal injury Do not drink the water drained from the product It is not sanitary could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury e Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or different types of batteries Window F4 4 Version 0 Airwell There is risk of fire or explosion Do not recharge or disassemble the batteries Do not dispose of batteries in a fire They may burn of explode If the liquid from the batteries gets onto your skin or clothes wash it well with clean water Do not use the remote of the batteries have leaked The chemical in batteries could cause burns or other health hazards 2 Specification Model AWWR WDF009 C12 Power supply 220 240V Single 60Hz Circuit breaker rating Fan type amp quantity mon Cross flow fan x1 Fan speeds H M L 970 870 780 mann dB A Characteristics Air flow 9 m3 hr 530 470 400 External static pressure Min Max
15. ot enough Y Check the operation mode No Y Check the setting temperature No Y Check whether dust filter is too dirty No Y Start the unit with cooling mode check whether the temperature of the compressor s discharge pipe is smaller than 90 C if no recharge refrigerant No Replace the capillary The air con doesn t work Check power supply No Check the wiring Check whether the transformer is failed the output voltage of transformer and check whether it is the range from 5V to 12V If not replace the transformer No Replace the PCB Window F4 22 Version 0 The compressor operates run stop frequently Y Check whether the airflow passage is blocked No Y Check whether the fan motor doesn t work Check whether capacitor of compressor work normally Check whether the relay of compressor on PCB works normally No Replace the a Check whether the capillary is blocked m Replace the capillary No Replace the compressor Window WDF 60Hz 23 Version 0 Water drips from the unit Check whether the ambient humidity is too high el Check whethe
16. peed of motor Yes Check the voltage between i Normal RY9 on main PCB and N i on power rp Check leakage Check whether the temp of tod suction pipe is above 7 C ME Leakage Y In cooling Yes Replace the compressor HE Recycle refrigerant and E braze the leakage point Replace the capillary tube Check the fan capacitor Y AE Vaccum and recharge Replace the reverse valve ji E Replace the motor 4 Check the drainage Y amp Replace the compressor Yes i Check whether the Cond is frosting and the compressor Recycle refrigerant and recharge i Check the speed of motor kri B En we S SoS ey i Normal Y Check the control wire of the reverse valve pe T S Replace the reverse valve Check the voltage between P11 on main PCB and N on power No voltage Replace the Main PCB Window WDF 60Hz 25 Version 0 Airwell 12 Exploded view and part list Exploded View AWWR WDF009 C12 Window F4 26 Version 0 Spare part list AWWR WDF009 C12 No Part Name 1 16 Cover of control panel 8 _ Electronic control assembly 1 203321490112 Electronic controlbox 1 201221790230 8 2 Capacitor of compressor 1 202401000079 83 Capatorcip 1 201200100002 87 Powercod 1 202402260214 8
17. r the indoor outlet airflow foam is too wet and louver drip Check whether the unit is correctly installed Check whether the air outlet foam install normally Check whether the foam of evaporator base is damaged Check whether the drain passage of evaporator is blocked Replace if failed Window F4 24 Version 0 Airwell No ineffective cooling No ineffective heating reverse cycle model stops frequently Y Er indicates room temp sensor failure BE E an ebd Yes En indicates indoor pipe sensor failure SUE a i ERES ES 9 Eo indicates outdoor pipe sensor failure gna Ed indicates that the evap Is frosting ves Whether the compressor can wo is blocked or the vent E d a door is open A SOOM RISES Check temperature setting Check whether the indoor ee outlet inlet of the unit 7 is blocked or the vent Check Wiring is blocked i No voltage Y i Replace ine thair RCB y Check compressor capacitor Check whether the Evap is No frosting and the compressor i stops frequently Check the s
18. risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the product from the window before the hurricane arrives There is risk of property damage failure of product or electric shock Do not open the inlet grill of the product during operation Do not touch the electrostatic filter if the unit is so equipped There is risk of physical injury electric shock or product failure When the product is soaked flooded or submerged contact an Authorized service center There is risk of fire or electric shock e Be caution that water could not enter the product There is risk of fire electric shock or product damage e Ventilate the product from time to time when operating it together with a stove etc There is risk of fire or electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock When the product is not be used for a long time disconnect the power supply plug or turn off the breaker There is risk of product damage or failure or unintended operation e Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury and product damage CAUTION e Always check for gas refrigerant leakage after installation or repair of product Low refrigerant levels may cause failure of product Install the drain hose to ensure that water is drained away properly A bad co
19. rom the front panel 2 Put the unit into the installation hole lt When installing the unit it should be Horizontal line Use iron support The installation hole should be strong enough to support the air conditioner If it cannot iron support has to be used outdoors Iron support should be fixed on the building Use sunshade board Air conditioner should avoid anything to be dropped into it and avoid direct sunshine If there is no cover on it you should contact the seller for installing the sunshade board When installing the sunshade board don t let it block the air at the side grille Window WDF 60Hz slanted down to the back to avoid the enlargement of noise or vibration Slant between 6 10mm The installation place should be strong enough to avoid the enlargement of noise or vibration 3 Fill up sews in the cabinet with sponge or foam 15 Rubber plate A HAN Wal NS a Hee Sw sunshade board b t ame a SQ m t CAU m 1 formate Ill CC s Horizontal line Version 0 Airwell 9 Operation characteristics 45 40 Dry Cooling 35 30 25 20 Outdoor air temp C DB 5 10 15 20 25 30 35 40 Indoor air tempC DB Window F4 16 Version 0 10 Characteristic of temperature sensor Window WDF 60Hz 17 Version 0 Air
20. ss than 14 C for subsequent 3 minutes the anti frosting protection is activated and compressor will stop in the following 6 minutes After that if the condition for de frosting function is met again in the following 10 minutes while the compressor is operating the unit will display Ed to indicate that the unit is in the defrost defect The compressor and fan motor will be OFF The Defect display can be cancelled only by pressing the ON OFF button on the unit or the remote controller Window WDF 60Hz 11 Version 0 Airwell 7 2 4 Electronic function 7 2 4 1 Cooling mode The speed of indoor fan can be optionally chosen as High Mid Low Compressor running rules Operation conditon T1 Ts F compressor on 1 2 y yo 2 1 compressor off T1 gt TS 2 F compressor on T1xTS 2 F compressor off 7 2 4 2 Auto mode The machine will choose cooling fan only mode according to AT AT T1 Ts The machine will choose actual running mode in auto mode in the below cases Power on or change mode to auto mode or adjust temperature in auto mode the machine will choose actual running mode again gt In auto mode if the compressor keeps not running for 15 minutes judge condition B B If 1 lt AT or AT lt 4 the machine will choose actual running mode again according to T1 Ts till the compressor stops 7 2 4 3 Fan mode 1 Compressor stops 2 Temperature setting
21. ther the evaporator frosts No Y Check whether the indoor air inlet is blocked No Y Check whether the indoor ambient temperature is too low No Y Check whether the indoor dust filter is too dirty No Y Check whether there is too much water on the chassis No Check the wiring of pipe temperature sensor No es Check the pipe temperature sensor M Replace the pipe temperature sensor No Replace the main control board Window F4 20 Version 0 Compressor doesn t work Check whether the indoor temperature is lower than 15 or larger than 31 No Check the power supply No Check whether the voltage is too high or too low No Y Check the wiring No Y Check whether the compressor is under overload protection a Check the relay of compressor in PCB works normally Check whether the external Y Remove the overload protector and cool to protector works noamally normal temperature then check whether it is open circuit replace if failed No Comparing whit compressor specification check the resistance of compressor Replace the compressor Window WDF 60Hz 21 Version 0 Airwell Cooling mode don t work or cooling n
22. top programs can be from 0 12 hours Each depression of the TIMER keypad will increase the selected time in 1 hour increments 4 FAN SPEED BUTTON Window F4 8 Version O Press the button to select the low Middle and High FAN Speed 51 TEMP BUTTON Press the A keypad to increase the set operating temperature of the unit and press the keypad to decrease the set operating temperature of the unit The temperature setting range is from 16 31 6 MODE BUTTON Press the MODE keypad to select the appropriate operating mode For the Cooling amp Heating models the mode selection will alternate between COOLING FAN DRY 7 SIGNAL RECEIVER 5 Refrigerant Cycle Diagram The figure below is a brief description of the important components and their function in what is called the refrigeration system This will help to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle For only cooling LIQUID SIDE CAPILIARY TUBE SRS PS GOU 0060C EVAPORATOR CONDENSER oOo 1 GAS SIDE COMPRESSOR Window WDF 60Hz 9 Version 0 Airwell 6 Wiring Diagram BROWN BLUE BLACK BLACK DISPLAY BOARD CAP RED mu m CONTROL BOARD B RR P N8 Kak P3n P10 AMBIENT SENSOR RY6 gr REL EVAPORATOR SENSOR T BLACK BROWN L n power GREENIGSY ANE
23. uit The yellow green wire must be grounded All side louvres of the cabinet must remain exposed to the outside ofthe structure 8 2 Check off installation The setting conditions must be checked prior to initial starting The under mentioned items are especially important checking points when the installation is finished Grounding wire yellow Green is provided in the power cord The wire must be grounded Ensure that the unit is connected to a suitably rated and dedicated circuit To avoid vibration or noise make sure the air conditioner is installed securely gt Avoid placing furniture of draperies in front of the air inlet and outlet 8 3 How to drain RANA e o 2 Screws Drain Pan Internal View External View To get the maximum cooling efficiency the air conditioner is designed to splash the Window F4 14 Version 0 Airwell condensation water on the condenser coil If the splashing sound annoys you you can provide an outside drain by using the following procedure which may however cause a small loss of performance Slide out the chassis from the cabinet 2 Remove the rubber plug from the body base plate Install the drain pan to the corner of the cabinet with 2 screws 3 4 Connect the drain hose to the outlet on the drain pan bottom 5 Slide the chassis into its original place in the cabinet 8 4 How to install 1 Remove the sticker f
24. well 11 Troubleshooting In general possible trouble is classified in three kinds One is called Starting Failure which is caused from an electrical defect another is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application and the other is called the Structure Damage Operation panel don t work Y Check the power supply No Y Press the LED button of remote controller several times and check whether the problem is settled down No Yes Check the wiring of display board EE Repair the wiring No Replace the display board Replace the main control board Window F4 18 Version 0 Fan motor speed can t change Check the wiring No Check the capacitor of fan motor Replace if failed No Replace the PCB Check the resistance of fan motor and replace the motor if failed The air con doesn t work Check the power supply No Y Check the wiring No Y Check whether the transformer is failed Measure the output voltage of transformer and check whether it is the range from 5V to 12V If not replace the transformer No Replace the PCB Window WDF 60Hz 19 Version 0 Display keeps showing Ed Check whe
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