LG LRTN19310 User's Manual
Contents
1. OVERLOAD PROTECTOR COMPRESSOR MOTOR M 3 502 STARTER SEALED TERMINAL RSCR Figure 10 4 2 4 Motor Restarting and PTC Cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can start 2 The PTC device generates heat during operation Therefore it must be allowed to cool before the compressor can restart 4 2 5 Relation of PTC Starter and OLP 1 If the compressor attempts to restart before the PTC device is cooled the PTC device will allow current to flow only to the main winding 2 The OLP will open because of the over current condition This same process will continue 3 to 5 times when the compressor attempts to restart until the PTC device has cooled The correct OLP must be properly attached to prevent damage to the compressor 4 2 6 Note for Using the PTC Starter 1 Be careful not to allow over voltage and over current 2 Do not drop or handle carelessly 3 Keep away from any liquid If liquid such as oil or water enters the PTC PTC materials may fail due to breakdown of their insulating capabilities 4 If the exterior of the PTC is damaged the resistance value may be altered This can cause damage to the compressor and result in a no start or hard to start condition 5 Always use the PTC designed for the compressor and make sure it is properly attached to the compressor 4 3 OLP OVERLOAD PRO2. 1 5 5 D SENSOR BTW IN 22 7 3 RESISTANCE SPECIFICATION SENSOR TEMPERATURE RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR SENSOR amp DEFROST SENSOR 20 C 4 F 22 3 KQ 77 15 C 5 F 16 9 KQ 60 10 C 14 F 13 0 KQ 47 3 KQ 5 C 23 F 10 1 KQ 38 4 KQ 0 C 32 F 7 8 KQ 30 KQ 5 C 41 F 6 2 KQ 24 1 KQ 10 C 50 F 4 9 KQ 19 5 KQ 15 C 59 F 3 9 KQ 15 9 KQ 20 68 F 3 1 KQ 13 KQ 25 C 77 F 2 5 KQ 11 KQ 30 86 F 2 0 KQ 8 9 KQ 40 C 104 F 14 KQ 6 2 50 C 122 F 0 8 KQ 4 3 The resistance of the SENSOR has a 5 common difference Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature This delay is necessary due to sensor response speed 22 7 4 TROUBLESHOOTING COMPLAINT SYMPTOM POSSIBLE CAUSES SOLUTION Electronic Display 1 No Display at all Supply voltage not within specifications Check supply voltage to refrigerator not operating 2 Open in wiring harness from PWB board 2 Check wiring and connectors to PWB board correctly 3 Open in door monitor switch circuit 3 Check door monitor circuit 2 Partial or 1 Supply voltage not within specifications 1 Check supply voltage to refrigerator abnormal display 2 Open in wiring harness from PWB board 2 Check
3. No frost Evaporator or frost forms in inlet only Frost formed normally Observe the discharged amount of Refrigerant Normal amount None or too much YES Inject refrigerant in compressor and check cooling operation Y Y Check Compressor Clogged by dust Gas leakage Faulty Moisture Clog Compressor Frost formed normally Find the leak and repair it 14 General Control of Refrigerating Cycle NO ITEMS UNIT STANDARDS PURPOSES REMARKS 1 Pipe and Min Pipe within 1 hour To protect The opening time should be reduced piping system Comp within 10 minutes to a half of the standards during rain opening time Drier within 20 minutes penetratio and rainy seasons the penetration of water into the pipe is dangerous 2 Welding Nitrogen Weld under Nitrogen To protect oxide Refer to repair note in each part pressure atmosphere scale formation R 134a refrigerant is more Ne pressure susceptible to leaks than R 12 and 0 1 0 2 kg cm requires more care during welding Do not apply force to pipes before and after welding to protect pipe from cracking 3 Nesealed Confirm Confirm the sound of To protect In case of evaporator parts if it doesn t parts leak pressure relief when gains D make sound when removing rubber removing the rubber cap penetratio
4. Starter continuity Check another electric component Replace OLP Figure 13 6 3 OTHER ELECTRIC COMPONENTS Not cooling at all Compressor Check for open short or doesn t run E incorrect resistance readings in the following components a Starting devices Short open or broken Poor contact or shorted b OLP c Compressor coil J39 Coil open or shorted d Wiring harness Poor contact p Replace or shorted indicated component Poor cooling performance Compressor runs poorly Check voltage at Poor or broken or starting devices Chock amaning Low voltage Raise voltage voltage Replace indicated component open contact Check current at Shorted Compressor Check rating of OLP Lack of capacity Replace indicated component Coil is shorted or open Check Fan Motor Fan motor Check wiri ircuit Wire is open or doesn t run shorted Heavy frost buildup on Check current flow in EVAPORATOR the following sen Check current flow in the Defrost Heater Replace indicated component Defrost Heater 12 6 4 SERVICE DIAGNOSIS CHART COMPLAINT
5. Figure 11 4 4 TO REMOVE so 3 Remove two Housings on upper part dm 4 Take out the from upper to lower position like CD b Turn 45 in the direction of 2 and take it out reverse order of disassembly 5 CIRCUIT DIAGRAM GOOD MODEL CIRCUIT DIAGRAM DISPLAY PCB R SENSOR RT SENSOR D SENSOR 1121314 1 1 9 R DOOR BNIRD PK YL SWITCH NEW ICE MAKER ICE MAKER MOTOR Q HEATER SHEATH MAIN PCB FUSE M CORD L 72 C 2 PWB PCB ASSEMBLY ICE MAKER CAPACITOR L ICE MAKER PART PLUG TYPE AND COMP EARTH PART ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND MODEL TYPE 3854JK1001A 6 TROUBLESHOOTING 6 1 COMPRESSOR AND ELECTRIC COMPONENTS Power SIR A Remove PTC Starter Reated Voltage YES from Compressor and 10 measure voltage between Terminal C of Compressor and Terminals 5 or 6 of PTC YES No Voltage OLP disconnected 5 gt ET R
6. is not clogged HEATER starts above 50 F 10 C RELAY malfunctions 17 7 1 5 TEST Mode 1 The Test mode allows checking the PCB and the function of the product as well as the Defective part in case of an error 2 The test button is on the main PCB of the refrigerator Test S W The test mode will b amp ieared in 2 hours regardless of the type of test mode 3 While in the test mode the ADJUST button will not operate 4 After exiting the test mode be sure to reset by unplugging and then plugging in the appliance 5 If an error such as a sensor failure is detected while in the test mode the test mode is cleared and the error code is displayed 6 While an error code is displayed the test mode will not be activated even if the test button is pushed MODE MANIPULATION CONTENTS REMARKS TEST1 Push the test button 1 Continuous operation of the COMP once 2 Continuous operation of the freezer fan 3 Defrosting Heater OFF 4 Every DISPLAY LED ON TEST2 Push the test button 1 COMP OFF Reset if the once while in 2 Freezer FAN OFF temperature of the TEST MODE 1 3 Defrosting heater ON Defrosting sensor is 4 1 3 5 LED ON 50 F 10 C or more Reset Push the test button Reset to the default setting The compressor will once while in Start after a 7 minute TEST MODE 2 delay 18 7 2 FUNCTION 2 1 1 Power is supplied to the contr
7. not the position number 27 REFRIGERATOR PARTS CAUTION Use the part number to o rder part CAUTION Use the part number to order part not the position number DOOR PARTS on some models LG Electronics Inc P No 3828JL8015A MAR 2003 Printed in Korea
8. 2 Loosen hexagonal bolts attaching the upper hinge to the body and lift the freezer door 3 2 DOOR SWITCH 1 To remove the door switch pry it out with a slotted type driver as shown in Figure 4 2 Disconnect the lead wire from the switch xx HINGE COVER HINGE Figure 1 3 Pull out the door gasket to remove from the door foam assembly LEAD WIRE DOOR SWITCH GASKET Figure 2 e Refrigerator Door 1 Loosen hexagonal bolts attaching the lower hinge to the body to remove the refrigerator door only Figure 3 2 Pull out the door gasket to remove from the door foam assembly 3 3 FAN AND FAN MOTOR 1 Remove the freezer shelf If your refrigerator has an icemaker remove the A Remove the grille by pulling it out ant loosening a Screw Remove the Fan Motor assembly by loosening 4 screws and disassemble the shroud Pull out the fan and separate the Fan Motor and Bracket 2 3 a FAN MOTOR SHROUD Figure 5 3 4 DEFROST CONTROL ASSEMBLY Defrost Control assembly consists of Defrost Sensor and FUSE M Defrost sensor functions to defrost automatically It is attached to metal side of the Evaporator and senses Temperature At the temperature of 162 F 72 C it stops the emission of heat from the Heater Fuse M is a safety device for preventing over heating of the Heater wh
9. CAL 5 nmnet 10 PIC AND eb UR e we cendi Ue i n obe t E AR PD 11 OTHER EEECTRICAE COMPONENTS did erc bt e dct eee Ded c de rc uie n bed 12 SERVICE DIAGNOSIS CHART 0 40 28 ce telle o e Pen E C Ee ede de od 18 REFRIGERATION CYCLE eon e e etti ede tad t i e t d e e etes 14 15 DESCRIPTION OF FUNCTION amp CIRCUIT OF 16 25 EXPLODED VIEW amp REPLACEMENT PARTS LIST 26 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator 1 Check the refrigerator for electrical faults 7 Close the top door before opening the bottom door 2 To prevent electric shock unplug before servicing Otherwise you might hit your head when you stand up 3 Always check line voltage and amperage 8 When tilting the refrigerator remove any materials on the refrigerator especially the glass shelves and stored 4 Use standard electrical components or cause your skin food to freeze and stick to the surfaces inside the freezer 5 Don t touch metal products in the freezer with wet hands This may cause frostbite 9 When servicing the evaporator wear cotton gloves This is to prevent injuries from the sharp evaporator fins 10 Service on the refrigerator should be performed by a qualified technician Sealed system repair must be perfo
10. LG REFRIGERATOR CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL models LRTN19310 LRTN22310 CONTENTS SAFETY PRECAUTIONS 2 5 Em 3 PARTS IDENTIFICATION m 4 ra E 48 65 44 5 6 DOOR AUREOS e dde oia ettet aede malice iun 5 DOOR SWLEIEH uie hm eae ee eoe etate eni iM blanda 5 55 sian be edeemeniiutoE ibus eaedem 6 DEFROST CONTROL ASSEMBLY ideo o diotecudeneliieteniiiu oe e editi etiaai 6 6 CONTROL BOX REFHRIGERATOR tede uo De eu muita odio 6 PXPHISIug zipper 7 8 COMPRESSOR te E Dic c e eb ett te be fere e o e eto dct ctl 7 ir EH etie atl enum e EC e e t id dens Tue e eiecti ee 7 OLEP OVERLOAD PROTEGTOR icio redeo cec ciii e t t eec te Ye ta tct ber edt e d e D 8 TO REMOVE THE COVER PTO cete tcd te ect ede cuc dcbet boc dee ted ed 8 9 TROUBLESHOOTING cincti tenni cic ak inae oco c Va DR a c ng A REA RR Au 10 15 COMPRESSOR AND ELECTRI
11. POINTS TO BE CHECKED REMEDY No Cooling s the power cord unplugged from the outlet Plug into the outlet Check if the power Switch is set to OFF Set the switch to ON Check if the fuse of the power Switch is shorted Replace the fuse Measure the voltage of the power outlet f the voltage is low correct the wiring Cools poorly Check if the unit is placed too close to the wall Place the unit about 10 cm from the wall Check if the unit is placed too close to the stove Place the unit away from these heat sources gas cooker or in direct sunlight s the ambient temperature too high or Lower the ambient temperature the room door closed Check if food put in the refrigerator is hot Put in foods after they have cooled down Did you open the door of the unit too often Don t open the door too often and close or check if the door is sealed properly it firmly Check if the Control is set to Warm position Set the control to Recommended position Foods in the s food placed in the cooling air outlet Place foods in the high temperature section Refrigerator front part are frozen Check if the control is set to colder position Set the control to Recommended position 15 the ambient temperature below 41 F 5 C Set the control to Warm position Condensation or ice forms inside the unit s liquid food sealed Check if food put in the refrigerator is hot Did you open the doo
12. TECTOR 4 3 1 Definition of OLP 1 OLP OVERLOAD PROTECTOR is attached to the Compressor and protects the Motor by opening the circuit to the Motor if the temperature rises and activating the bimetal spring in the OLP 2 When high current flows to the Compressor motor the Bimetal works by heating the heater inside the OLP and the OLP protects the Motor by cutting off the current flowing to the Compressor Motor 4 3 2 Role of the OLP 1 The OLP is attached to the Sealed Compressor used for the Refrigerator It prevents the Motor Coil from being started in the Compressor 2 For normal operation of the OLP do not turn the Adjust Screw of the OLP in any way OVERLOAD PROTECTOR cross section Part D Customer part No Name number 0 Base phenolic Coder UL 94 0 rated 330 FBYY late code 2 Movable arm support plated steel Electrical Physical i characteristics termination contact support part number part number plated steel 4 Heater support plated steel Heater resistance alloy Disc thermostatic alloy 0 Movable spring temper copper alloy Contact movable silver on copper 9 Contact stationary silver on copper 49 Slug plated steel Cover polyester UL 94 V Orated 49 Pin connector plated copper alloy To engage 2 33 2 66 mm dia pin 49 Quick connect terminal brass conforms to UL 310 MEMA DC 2 DIN 46344
13. e of the unit Wrap foods that have a strong odor New products smell of plastic but this will go away after 1 2 weeks e Other possible problems the freezer Check the refrigeration system Check the Thermistor Check if frost forms in Not x gt defrosting m ofthe defrosting circuit The system Perform sealed gt is faulty system repair The operation of Replace the gt the Thermistor is gt Thermistor incorrect 213 Check Components 6 5 REFRIGERATING CYCLE Troubleshooting Chart STATE OF STATE OF THE TEMPERATURE THE UNIT EVAPORATOR OF THE MERE COMPRESSOR PARTIAL Freezer Low flowing sound of A little higher Refrigerant level is low due LEAKAGE compartment and Refrigerant is heard and than ambient to a leak Refrigerator don t frost forms in inlet only temperature Normal cooling is possible by In cool normally restoring the normal amount of 2 refrigerant and repairing the leak 2 COMPLETE Freezer Flowing sound of refrigerant Equal to ambient No discharging of Refrigerant LEAKAGE compartment and is not heard and frost isn t temperature Normal cooling is possible by Refrigerator don t formed restoring the normal amount of cool normally refrigerant and repairing the leak PARTIAL Freezer Flowing sound of refrigerant A li
14. en defrosting 1 Pull out the grille assembly 4ure 6 2 Separate the connector l Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 7 DEFROST CONTROL ASSEMBLY GRILLE ASSEMBLY Figure 6 Figure 7 3 5 LAMP Figure 8 3 5 1 Refrigerator Compartment Lamp 1 Unplug the power cord from the outlet 2 Remove refrigerator shelves 3 Release the hooks on both ends of the lamp shield and pull the shield downward to remove it 4 Turn the lamp counterclockwise 5 Assemble in reverse order of disassembly Replacement bulb must be the same specification as the original Max 60 W 1EA 3 6 CONTROL BOX REFRIGERATOR 1 First remove all shelves in RED 0 the Refrigerator Control Box by loosening 2 screws COVER LAMP Figure 9 2 Remove the Refrigerator Control Box by pulling it downward 3 Disconnect the lead wire on the right position and separate the lamp sockets 4 ADJUSTMENT 4 1 COMPRESSOR 4 1 1 Role The compressor intakes low temperature and low pressure gas from the evaporator of the refrigerator and compresses this gas to high temperature and high pressure gas It then delivers the gas to the condenser 4 1 2 Composition The compressor includes overload protection The PTC starter and OLP overload protector are attached to the outside of the compressor Since the compress
15. eplace OLP Check connection condition Reconnect in range of Applied voltage isn t Advise customer that D 5 Voltage 10 Readi OK Check Check resistance 21 3 resistance of between M C S C and Motor M S in Motor Open or short Replace Compressor Compressor Compressor 5 Check Check resistance of 4 resistance of two terminals in Replace PTC Starter PTC Starter PTC Starter 5 Open or short Replace OLP gt Check resistance of gt Check OLP two terminals in OLP Check Check the power supply Supply Did Compressor starting state under load voltage compressor is OK Compressor attempting rating with start to re start after being off NO Replace th for 5 minutes the compressor it 10 6 2 AND OLP Normal operation of Compressor is impossible or poor Separate PTC Starter from Compressor and measure resistance between No 5 and 6 Observation value is 115V 60Hz 6 803096 of PTC Starter with a Tester Figure 12 Shows Separate OLP from Compressor and check resistance value between two terminals of OLP with a Tester Figure 13 2341 The resistance value is 0Q short or open 7 Check another electric component Replace PTC
16. ide refrigerator cycle piping 7 Leak check Do not use soapy water for Defect Check for an oil leak at the refrigerant check It may be sucked refrigerant leak leak area Use an electronic leak into the pipe by a vacuum area detector if an oil leak is not found The electronic leak detector is very sensitive to halogen gas in the air It also can detect R 141b in urethane Practice many times before using this type of detector to avoid false readings 15 7 DESCRIPTION OF FUNCTION amp CIRCUIT OF MICOM 7 1 FUNCTION 7 1 1 Function 1 When the appliance is plugged in it is set to 3 for the Refrigerator You can adjust the Refrigerator control temperature by pressing the ADJUST button 2 When the power is initially applied or restored after a power failure it is automatically reset to 3 1 2 e e WARMER TEMPERATURE ADJUST 7 1 2 Defrost Cycle 1 A defrost cycle will be initiated after 4 hours of accumu failure 2 After the initial defrost the defrost cycle is initiated after 7 hour of accumulated compressor run time 3 The defrost cycle will be terminated once the defrost sensor reaches 50 F 10 C 7 1 3 Electrical B Electrical parts such as COMP defrost heater freezer FAN etc operate in the following order to prevent noise and parts damage Several parts are started at the same time at initial power on and are turned off together when TEST is 1 compressor run time after
17. ol board at pins 1 and 5 of connector 44 4 POWER 19 7 2 2 Load Buzzer Drive amp Open Door Detection Circuit 1 Load Drive Condition Check ALE15B12 16A DEF HEATER FUSE M RY4 ALD112 18 To measure outputs of the control board check voltages between the pins for the following components Circuit Pin Number Pin Number Output Voltage Compressor Cont pin1 Con4 pin1 115 VAC Condenser fan Con1 pin1 Con4 pin1 115 VAC Evaporator fan Cont pin1 Con4 pin1 115 VAC Defrost heater Con1 pin3 4 pin1 115 VAC F R lamp Con1 pind Con4 pin1 115 VAC NOTE When the door of the freezer refrigerator is left open for 7 minutes or longer the lamp of the freezer refrigerator turns off automatically 20 2 Open Door Circuit Door Monitor Circuit CON 5 O R DOOR S W 6 R DOOR S W 60W Freezer or Refrigerator Measurement between pins 5 and 6 at Con 3 Both Closed 0 volts One door open 5 volts 21 7 2 3 Temperature Sensor Circuit Voltage supplied to each sensor wil range between 0 5 volts 22 F 30 C and 4 5 volts 122 F 50 C depending upon the temperature in the compartments A measurement of 0 volts indicates a short the sensor circuit A measurement of 5 volts indicates an open in the sensor circuit CON2 7 s RSENSOR CON
18. or is manufactured to tolerances of 1 micron and is hermetically sealed in a dust and moisture free environment use extreme caution when repairing it 4 1 3 Note for Usage 1 Be careful not to allow over voltage and over current 2 If compressor is dropped or handled carelessly poor operation and noise may result 3 Use proper electric components appropriate to the Particular Compressor in your product 4 Keep Compressor dry If Compressor gets wet in the rain or a damp environment and rust forms in the pin of the Hermetic Terminal poor operation and contact may result 5 When replacing the Compressor be careful that dust humidity and soldering flux don t contaminate the inside of the compressor Dust humidity and solder flux contaminate the cylinder and may cause 4 2 PTC STARTER 4 2 1 Composition of PTC Starter 1 PTC Positive Temperature Coefficient is a no contact semiconductor starting device which uses ceramic material consisting of BaTiOs 2 The higher the temperature is the higher the resistance value These features are used as a starting device for the Motor 4 2 2 Role of PTC Starter 1 The PTC is attached to the Sealed Compressor and is used for starting the Motor 2 The compressor is a single phase induction motor Durign the starting operation the PTC allows current flow to both the start winding and main winding 4 2 3 PTC Applied Circuit Diagram e Starting Method for the Motor
19. r of the unit too often or check if the door is sealed properly Seal liquid foods with wrap Put in foods after they have cooled down Don t open the door too often and close it firmly Condensation forms in the Exterior Case Check if the ambient temperature and humidity of the surrounding air are high s there a gap in the door gasket Wipe moisture with a dry cloth It will disappear in low temperature and humidity Fill up the gap There is abnormal noise 15 the unit positioned in a firm and even place Are any unnecessary objects placed in the back side of the unit Check if the Drip Tray is not firmly fixed Check if the cover of the compressor enclosure in the lower front side is taken out Adjust the Leveling Screw and position in a firm place Remove the objects Fix the Drip Tray firmly in the original position Place the cover in its original position Door does not close well Check if the door gasket is dirty with an item like juice 15 the refrigerator level s there too much food in the refrigerator Clean the door gasket Position in the firm place and level the Leveling Screw Make sure food stored in shelves does not prevent the door from closing Ice and foods smell unpleasant Check if the inside of the unit is dirty Are foods with a strong odor unwrapped The unit smells of plastic Clean the insid
20. rmed by a CFC certified technician 6 Prevent water from spiling onto electric elements or the machine parts 1 SPECIFICATIONS Ref No 19 22Cuft ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Slide Rounded VEGETABLE TRAY Opaque Drawer Type 755 x 806 1664 W x D xH 19 Cu ft COMPRESSOR PTC Starting Type DIMENSIONS mm 831 x 806 x 1715 W x D xH 22 Cut EVAPORATOR Fin Tube Type 91 19 cu ft CONDENSER Wire Condenser NET WEIGHT kg 101 22 cu ft REFRIGERANT R 134a 155 g COOLING SYSTEM Fan Cooling LUBRICATING OIL Freol 10G 310 cc TEMPERATURE CONTROL Micom Control DEFROSTING DEVICE SHEATH HEATER SYSTEM Full Automatic LAMP REFRIGERATOR 60 W 1 Heater Defrost DOOR FINISH VCM HANDLE TYPE Bar INNER CASE ABS Resin INSULATION Polyurethane Foam 2 PARTS IDENTIFICATION FREEZER COMPARTMENT Bin Freezer Door Bin Freezer Shelf REFRIGERATOR COMPARTMENT Digital Sensor Control Can Dispenser Snack Corner Dairy Bin Shelves Egg Tray Crisper Door Bin Keeps fruits and vegetables fresh and crisp LH Refrigerator Door 3 Rack Base Grille 3 DISASSEMBLY 3 1 DOOR e Freezer Door 1 Remove the hinge cover by pulling it upwards
21. rr cap blow dry air or gas for more Sound usable than 1 min and use the parts No sound not usable E 4 Refrge Evacuation Min More than 40 minutes To remove moisture ration time Vacuum Torr Below 0 03 ref Note Only applicable to the model degree equipped with reverse flow protect plate Vacuum EA High and low pressure sides Vacuum efficiency can be improved are evacuated at the same by operating compressor during time for models above 200 evacuation Vacuum EA Use R 134a manifold To protect mixing The rubber pipes for R 12 refrigerant piping exclusively of mineral and will be melted when they are used for ester oils R 134a refrigerant causes of leak Pipe EA Use R 134a manifold To protect R 12 coupler exclusively refrigerant mixing Outlet R 134a manifold exclusively To protect R 12 Socket refrigerant mixing Plug R 134a manifold exclusively To protect R 12 refrigerant mixing 5 Refrigerant EA Use R 134a exclusively Do not mix with Do not weigh the refrigerant at too weighing Weighing allowance 50 R 12 refrigerant hot or too cold an area Note Winter 5g 77 F 25 C is adequate Summer 59 Make Copper charging canister Device filling refrigerant Socket 28V Plug 2PV R 134a Note Do not burn O ring bushing during welding 6 Drier Use R 134a exclusively for To remove the replacement R 134a refrigerator moisture from Replace drier whenever repairing pipe ins
22. the initial power up or a power completed OPERATING Temperature of Defrost Sensor is 113 F 45 C or POWER 1 2 second F A more when unit is newly ON gt 5 purchased when moved ON 9 POWER in 1 2 second Defrost in 10 second Defrost 5 Temperature of defrost ON r heater ON heater OFF o sensor is lower than 113 F 45 C when power COMP amp cuts SERVICE in 1 2 second Freezer FAN gt ON COMP amp Reset to normal operation Total load in 7 minute FAN from TEST MODE OFF Freezer ON 16 7 1 4 Defect Diagnosis Function RE 2 When a defect occurs the buttons will not 3 When the defect CODE removes the sign it returns to normal operation RESET 4 The defect CODE shows on the and the other LED turns off Defect code panel TEMPERATURE ADJUST ERROR CODE on Refrigerator Temperature panel Q ON Q9 OFF DEFECT SIGNS NO ITEM R1 R2 R3 R4 R5 CONTENTS REMARKS Refrigerator sensor 1 oras e o e Open or short circuited wire Defrost sensor 2 xInspect 2 malfunctions 9 Open or short circuited wire connecting wires on each sensor Room Temperature 3 hi e Open or short circuited wire malfunctions 2 hours after Temperature FUSE cuts off Defrosting defrosting starts HEATER cuts off DRAIN is 1 malfunctions the sensor
23. ttle higher Normal discharging of the lt RESTRICTION compartment and is heard and frost forms than ambient refrigerant 2 Refrigerator don t in inlet only temperature The capillary tube is faulty cool normally o WHOLE Freezer Flowing sound of refrigerant Equal to ambient Normal discharging of the 2 RESTRICTION compartment and is not heard and frost isn t temperature Refrigerant e Refrigerator don t cool formed MOISTURE Cooling operation Flowing sound of refrigerant Lower than Cooling operation restarts RESTRICTION stops periodically is not heard and frost melts ambient when heating the inlet of the temperature capillary tube COMP Freezer and Low flowing sound of A little higher e Low pressure at high side CO RESSION Refrigerator refrigerant is heard and ambient of compressor due to low TU m don t cool frost forms in inlet only temperature refrigerant level D O ZA NO COMP No compressing Flowing sound of refrigerant Equal ambient No pressure the high an RESSION operation is not heard and there is temperature pressure part of the 2 no frost compressor V Leakage Detection e Observe the discharging point of the refrigerant which may be in the oil discharging part of the compressor and in a hole in the evaporator Check if compressor YES Sheck Check if oil forms in gt leak runs
24. wiring and connectors to and from PWB board Not Cooling 1 Display on but 1 Compressor not operating 1 Check for compressor operation by using the test compressor not 2 Open in compressor circuit key on main circuit board operating 2 Check for open on OLP PTC compressor wiring etc Not cold enough 2 Display on 1 Condenser fan motor not operating 1 Check condenser fan motor and wiring circuit compressor is 2 Condenser coils blocked 2 Check air flow across condenser operating 3 Evaporator fan motor not operating 3 Check evaporator fan motor and wiring circuit 4 Damper not opening or internal air flow blocked 4 Check damper motor circuit 5 Sensor not operating properly 5 Check refrigerator and freezer sensors 6 Door not sealing 6 Check for proper door esal 7 Evaporator Frosted up 7 Check defrost circuit components 8 Sealed System related problem Not defrosting 1 Frosted up in 1 Open in defrost circuit 1 Check defrost heater and circuit using Test Key 2 Defrost sensor not operating correctly 2 Check sensor 3 Defrost drain clogged 3 Check drain 24 7 5 MAIN PWB ASSEMBLY AND PARTS LIST 7 5 1 Main PWB Assembly 5L 5l o 1 25 8 EXPLODED VIEW amp REPLACEMENT PARTS LIST CAUTION Use the part number to order part not the position number CASE PARTS 26 FREEZER PARTS CAUTION Use the part number to order part
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