GE GTRC0 Series Technical Service Manual Download

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Consumer Home Services Training

TECHNICAL SERVICE GUIDE

TMNF 20 Cubic Foot

GE Refrigerators

MODEL SERIES:

GTRS0

GTRC0
GTRL0

MTRL0

PUB #01-2010

Summary of Contents for GTRC0 Series

Page 1: ...Consumer Home ServicesTraining TECHNICAL SERVICE GUIDE TMNF 20 Cubic Foot GE Refrigerators MODEL SERIES GTRS0 GTRC0 GTRL0 MTRL0 PUB 01 2010 ...

Page 2: ......

Page 3: ... the interpretation of this information nor can it assume any liability in connection with its use WARNING To avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers ...

Page 4: ...hms NO LOAD PERFORMANCE Control Position 5 5 and Ambient of 70 F to 90 F Fresh Food F 34 to 40 Frozen Food F 3 to 3F Run Time 70 F 20 to 40 Run Time 90 F 40 to 70 This information is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair a major appliance may result in personal injury and property damage The manufact...

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Page 6: ... 0 75 mA Maximum Ground Path Resistance 0 14 Ohms NO LOAD PERFORMANCE Control Position 5 5 and Ambient of 70 F to 90 F Fresh Food F 34 to 40 Frozen Food F 3 to 3F Run Time 70 F 15 to 40 Run Time 90 F 30 to 60 This information is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair a major appliance may result in pe...

Page 7: ... 5 MODEL NOMENCLATURE Model series GTRS0 GTRC0 GTRL0 MTRL0 20 cubic foot refrigerators ...

Page 8: ...ady B Ice Maker Ready C Factory Ice Maker D Filter Ready IceMaker E 6 Month Filter Ice Maker F 1 Year Filter Ice Maker Profile CS has Ext Dips Crushed Cubed Water 6 Month Filter G Internal WaterDispenser Filter Ready Ice Maker H Internal WaterDispenser 6 Month Filter Ice Maker I Internal Water Dispenser 1 Year Filter Ice Maker Model Year Z 2010 Engineering Nomenclature A Initial Design B 1st Revis...

Page 9: ... FT FV FZ FA FD FF FG FH FL FM FR FD APR GZ GA GD GF GG GH GL GM GR GS GS GT GV GZ GA GD GF GG GH GL GM GR GS MAY HZ HA HD HF HG HH HL HM HR HS HS HT HV HZ HA HD HF HG HH HL HM HR HS JUN LZ LA LD LF LG LH LL LM LR LS LS LT LV LZ LA LD LF LG LH LL LM LR LS JUL MZ MA MD MF MG MH ML MM MR MS MS MT MV MZ MA MD MF MG MH ML MM MR MS AUG RZ RA RD RF RG RH RL RM RR RS RS RT RV RZ RA RD RF RG RH RL RM RR R...

Page 10: ...d GE Configuration Top Freezer Total cubic feet 20 0 Controls Type Knob Electro mechanical and Knob electronic Location Upfront Features Temp 1 9 Sensors No Graphics GE GE Smartwater Filter No Lighting 1 40W Protective Lamp Covers Clear Internal Dispenser No Door Hinge Hinge Right Reversible Door Stops Yes Leveling System 2 Point Front Adj Handles Type GE Face Mounted Plastic Color Color Matched R...

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Page 12: ... 10 SERVICE REVIEW REMOVE DOORS TOP HINGE WITH 5 16 SOCKET SCREWDRIVER REMOVE TWO NUTS REMOVE THE TOP HINGE ...

Page 13: ... 11 REMOVE THE FREEZER DOOR INTERMEDIATE HINGE WITH TORX T 15 HEAD SCREWDRIVER REMOVE THREE SCREWS AND REMOVE INTERMEDIATE HINGE ...

Page 14: ... 12 REMOVE FRESH FOOD DOOR LOWER HINGE WITH 5 16 SOCKET SCREWDRIVER REMOVE TWO NUTS ...

Page 15: ...TOMER TO EASILY MOVE THE REFRIGERATOR CABINET LEVELING IS DONE BY ADJUSTING THE FRONT ROLLERS TO ADJUST THE FRONT ROLLERS USE A 3 8 IN SOCKET OR A LARGE FLAT HEAD SCREWDRIVER TO TURN THE ROLLER ADJUSTMENT SCREWS LOCATED BEHIND THE BASE GRILLE FREEZER COMPARTMENT ...

Page 16: ...LF AND SLIDE IT LEFT INTO THE CENTER OF THE SHELF SUPPORTS ROTATE THE RIGHT SIDE OF THE SHELF UP AND OUT OF THE SHELF SUPPORTS ICEMAKER REMOVE THE ICEMAKER AND WITH THE PHILLIPS HEAD SCREWDRIVER TWO SCREWS COVER EVAPORATOR PRESS AND PULL ...

Page 17: ... 15 REMOVE THE COVER EVAP WITH THE PHILLIPS HEAD SCREWDRIVER FOUR SCREWS EVAPORATOR FAN MOTOR DISCONNECT TERMINALS AND CONNECTOR ...

Page 18: ...BE RADIANT HEATER IT IS HELD IN PLACE BY 2 TABS ON THE EVAPORATOR 1 ON EACH SIDE AND BY 2 CERAMIC AND WIRE SUPPORTS THE CERAMIC AND WIRE SUPPORTS PREVENT THE HEATER FROM SAGGING AND TOUCHING THE METAL DRAIN PAN IF THE GLASS IS BROKEN HEATER DEFROST DEFROST DRAIN PROBE ...

Page 19: ... 17 CONTROL BOX REMOVE THE CONTROL BOX WITH THE PHILLIPS HEAD SCREWDRIVER TWO SCREWS COMPRESSOR COMPRESSOR NO CLEAN CONDENSER DRYER CONDENSER FAN ...

Page 20: ...p center and bottom hinges to the cabinet Mounting holes in the hinges are not elongated and the hinges are not adjustable When reinstalling the hinges tighten screws firmly but avoid overtightening to prevent stripping Note When reversing the door swing read all instructions thoroughly before starting When handling parts use caution to avoid scratching paint Sort screws to correspond with related...

Page 21: ...door away from the cabinet Lift the door straight up and off the bottom hinge and place on a protected surface Note If the washer is not on the bottom hinge check to see if it is stuck to the bottom of the door Reversing the Doors 1 Install the top hinge and screws on the opposite side of the cabinet Do not tighten the screws at this time 2 Remove the base grille by pulling it straight out from th...

Page 22: ...cover on the opposite side of the cabinet 7 Install the center hinge with the three long screws on the opposite side of the cabinet Replace the color matched cap 8 Move the metal door stop and any associated screws to the opposite side of the door Fresh Food Door Handles 1 Remove the plug button by carefully prying underneath the edge with a small flat blade Remove the screw that fastens the botto...

Page 23: ... of the door and install in the thimble hole 5 Move the front door plug button to the opposite side of the door and install in the screw hole Button 6 Install the handle to the opposite side of the door with 3 screws Note If equipped with long handle ensure that pin in the lower part of the handle is installed in bottom of the door 7 Install handle plug Long Handle Short Handle Handle Plug Hole Pi...

Page 24: ...ure that the washer is on bottom hinge pin 2 Line up the fresh food door with the center hinge bracket Install the hinge pin in the center hinge bracket and door with a 3 4 in socket Tighten the hinge pin in the center hinge bracket 3 Install the freezer door onto the center hinge pin and upper hinge screws loose Support the door on the handle side and make sure the door is straight and the gap be...

Page 25: ...t into the center of the shelf supports Rotate the right side of the shelf up and out of the shelf supports To replace Holding the shelf diagonally insert the left end of the shelf into the center of the shelf supports on the side wall at the desired level Insert the right end of the shelf into the shelf supports at the same level Rest each end of the shelf on the bottom of the shelf supports NOTE...

Page 26: ...ou push the shelves all the way in before you close the door Finger hold Snugger Adjustable Bins on the Door Adjustable bins can easily be carried from refrigerator to work area To remove Lift bin straight up then pull out To replace or relocate Engage the bin in the molded supports of the door and push in Bin willlock in place The snugger helps prevent tipping spilling or sliding of small items s...

Page 27: ...way to the LOW setting to provide lower humidity levels recommended for most fruits Snack Pan on some models This pan can be moved to the most useful location for your family s needs To remove slide the pan out to the stop position lift the pan up and past thestop position and lift it out Adjustable Temperature Deli Pan on some models When the pan is placed in the top 6 slots on the left side and ...

Page 28: ... location When the door cannot be fully opened remove the drawer farthest from the door first Make sure the drawer closest to the door is fully closed There is a latch at the front of the center slide rail Push down on the latch and slide the center slide rail to which the drawer is attached away from the door Remove the drawer ...

Page 29: ...ing retainers that clip into elongated openings in the base channel To remove the grille pull it straight forward GEA01144 GEA01145 Doors The doors are of one piece construction with foam insulation One piece construction provides superior thermal performance and reduces air infiltration During manufacturing the doors are filled with hot foam insulation This may cause slight distortion or ripples ...

Page 30: ...igerator Cabinet leveling is done by adjusting the front rollers To adjust the front rollers use a 3 8 in socket or a large flat head screwdriver to turn the roller adjustment screws located behind the base grille The rear rollers are not adjustable To remove a front roller assembly from the base of the cabinet 1 Tilt the cabinet back and place a 3 in block under the side of the unit 2 Remove 3 he...

Page 31: ... 17 ICEMAKER Water Valve A single coil 120 VAC valve is secured to the rear of the cabinet inside the machine compartment on the left hand side GEA01142 GEA01137 ...

Page 32: ... diverted through the lower portion of the freezer air tower and is pushed though the mullion hole into the fresh food compartment air channel The air then exits the air channel in the front of the fresh food compartment creating a curtain of cold air along the front of the shelves The fresh food air channel also has a rear discharge to maintain deli drawer temperatures Air circulates throughout t...

Page 33: ...itical Refer to graphic for specifications If the fan shorts it will damage the main control board If the resistor on the main control board is burnt you must replace the fan and the board see photo Evaporator Fan Adjustment 5 16 0 03 Blade tip 1 0 0 05 Target Motor Airflow Orifice GEA01149 ...

Page 34: ... 20 EXPLODED VIEWS Knob Electro mechanical EX PL OD ED VIE WS ...

Page 35: ... 21 Knob Electronic ...

Page 36: ... 22 structure ...

Page 37: ... 23 FREEZER DOOR FRESHFOOD DOOR ...

Page 38: ... 24 HINGE ...

Page 39: ... 25 RACKS SPILLPROOF ...

Page 40: ...right side of the refrigerator Inlet air is available through the left front and left rear of the machine compartment A rubber divider strip underneath the refrigerator divides the inlet and outlet sides of the machine compartment The rear access cover must be tightly fitted to prevent air from being exhausted directly out of the rear of the machine compartment bypassing the compressor The condens...

Page 41: ...ir Flow condenser fan mounting bracket 3 Remove 2 screws from the condenser fan cover 4 Pull the fan out and disconnect the electrical connector 1 2 Fan 0 375 Housing Motor Airflow Bracket 0 50 0 05 GEA01148 ...

Page 42: ...board monitors door opening fresh food and freezer doors and compressor run times The board counts the time the doors are open It reduces the length between defrosts by 210 seconds multiplication factor for each second that each door is open if both doors are open it reduces it by twice the amount The multiplication factor reduces compressor run time If the doors are not opened the compressor will...

Page 43: ...porator fan and compressor can run continuously for 2 hours Adaptive Defrost Different sound levels can be heard when the fan changes speed Response time for drastic temperature change is 2 to 10 minutes The main control board will only respond to 8 degrees Fahrenheit of temperature change per minute as determined by resistance of sensor Abnormal Operating Characteristics Incorrect Operation Rapid...

Page 44: ...ense 65 F in less than 45 minutes or the defrost cycle will time out Normal defrost time is 25 minutes or less not including the 5 minute dwell or post dwell periods Defrost Overtemperature Thermostat The defrost overtemperature thermostat bimetal switch is mounted on the evaporator and provides overtemperature protection during defrost This thermostat will open at 140 F and will close at 110 F No...

Page 45: ...s into the drain opening This probe transfers heat to the drain opening during defrost Two additional defrost probes are attached to the sides of the evaporator These probes extend upward between the freezer wall and evaporator sides to assist the defrosting process Defrost Drain Probe Evaporator ...

Page 46: ...ply side results in the refrigerator defaulting to midpoint The supply side consists of pins 1 and 2 An open circuit from the return side results in inconsistent run mode The return side consists of pins 3 and 6 Failure of the fresh food only side results in the fresh food defaulting to midpoint Failure of the freezer side results in the freezer defaulting to midpoint COLDER WARMER 9 IS COLDEST HO...

Page 47: ...ive defrost It communicates to the display board by serial port a Feeding 127VAC control card in the main connector b Measure voltage at the output of voltage regulator on the control card The value should be 5 0 2 VDC at the output of regulator U3 TP TP Vcc and GND Temperature Verification and start cutting a Feeding 127VAC control card in the main connector b Turn the potentiometer knob in posit...

Page 48: ...67 5 1 69 1 67 6 1 69 1 67 7 1 17 1 59 8 0 44 2 33 9 0 28 3 06 e Remove the power supply to the card Note In position 0 must remain off the compressor and defrost relays Check defrost relay CTQ a Feeding 127VAC control card in the main connector b Wait for the compressor relay is activated c Force the melting by a short circuit between pins VCC and P1 d The compressor will stop relay and defrost r...

Page 49: ...ce in Kilo ohms 40 40 166 8 kΩ 30 22 88 kΩ 20 4 48 4 kΩ 10 14 27 6 kΩ 0 32 16 3 kΩ 10 50 10 kΩ 20 68 6 2 kΩ 30 86 4 kΩ 40 104 2 6 kΩ 50 122 1 8 kΩ 60 140 1 2 kΩ Temperature Set Point Chart Control Setting Fresh Food Compartment Freezer Compartment Fresh Food Thermistor Temperature Range Freezer Thermistor Temperature Range Minimum Maximum Minimum Maximum 0 Off Off 1 44 F 6 F 43 F 45 F 1 F 11 F 2 4...

Page 50: ...When the door switch is closed L1 is provided to the compartment light s The main control board receives L1 input on pin 6 J7 when the fresh food door switch is closed door open The main control board receives L1 input on pin 4 J7 when the freezer door switch is closed door open Schematic Knob Electronic ...

Page 51: ... 37 Schematic Knob Electro mechanical ...

Page 52: ...condenser does the same job as previous models Air is drawn into the condenser from the front left and rear left of the cabinet Air exits only from the right side of the cabinet Condenser Loop The condenser loop made of 5 32 in O D copper tubing is foamed in place behind the breaker frame and across the mullion It is not accessible for replacement The tubing is routed from the rear of the machine ...

Page 53: ... a replacement dryer 15 Evacuate and recharge the system using currently accepted procedures Evaporator LOKRING Method 1 Recover the refrigerant 2 Remove the evaporator cover 3 Remove the defrost thermostat 4 Remove the defrost heater 5 Disconnect the ground wire from the evaporator and position all wiring to allow for evaporator removal 6 Remove the 2 screws that hold the evaporator to the cabine...

Page 54: ... 40 COMPONENT AND CONNECTOR LOCATOR VIEWS ...

Page 55: ... 41 Relay and Overload Under Cover Compressor Dryer No Clean Condenser Capacitor Condenser Fan ...

Page 56: ...Not Running flowchart YES Is the compressor running NO Go to Compressor Not Running flowchart YES Is the airflow in the fresh food compartment normal Look for blockage at vents or heavy NO frost on evaporator cover Blockage Remove blockage from evaporator cover vent area YES Verify thermistors are within proper range NO Is the resistance within range Check wiring connections If OK replace thermist...

Page 57: ...plug back in Is the evaporator fan running NO Go to Evaporator Fan Not Running flowchart YES Is the condenser fan running Go to Condenser Fan NO Not Running flowchart YES Is the airflow in the fresh food compartment normal Look for blockage NO at vents or heavy frost on evaporator cover Blockage Remove blockage from evaporator cover vent area YES Verify thermistors are within proper range NO Is th...

Page 58: ...rigerator for 15 seconds then plug back in Is the evaporator fan running at correct speed NO Go to Evaporator Fan Not Running flowchart YES Is the airflow in the fresh food compartment normal Look for blockage NO at vents or heavy frost on evaporator cover Blockage Remove blockage from evaporator cover vent area YES Verify thermistors are within proper range NO Is the resistance within range Check...

Page 59: ...NO Low ambient temperature Is the NO room temperature above 55 F Advise consumer of refrigeration installation requirements YES Verify fresh food thermistor is within proper range Is resistance within range Check wiring NO connections If wiring is OK replace thermistor YES Is evaporator fan operating at proper NO speed Go to Evaporator Fan Not Running flowchart YES Unit tests OK Run checks again R...

Page 60: ... and allow 24 hours to stabilize NO Check for 120 VAC Is 120 VAC present YES Direct test compressor NO Did compressor start Replace compressor YES YES Check wiring to compressor overload and relay Replace defective part Verify freezer thermistor is within proper range Is the resistance within range Check wiring NO connections If OK replace thermistor YES Replace main board ...

Page 61: ...nel lit YES Check for 12 VDC at J4 2 to 3 If no NO voltage check wiring If wiring OK replace touch panel Encoder Can touch panel NO be set to 5 and 5 Membrane touch panel or wiring YES Is voltage present Unplug temperature control Does refrigerator start Verify freezer thermistor is within NO proper range Is the resistance within range Check wiring connections If NO wiring is OK replace thermistor...

Page 62: ...ck thermistors using thermistor values or self diagnostic test 0 7 Thermistors pass Test YES Replace main board NO Unplug refrigerator to reset main control board Reconnect power Warm freezer thermistor to 70 F and set temperature controls to 5 and 5 Did evaporator fan start YES NO Adjust settings and allow 24 hours to stabilize Check wiring connections If OK replace thermistor NO At the fan conne...

Page 63: ...reezer thermistor to 70 F Reconnect power and set temperature controls to 5 and 5 Recheck voltage Is voltage correct YES Adjust settings and allow 24 hours to stabilize NO At the condenser fan connector check for 13 VDC Is voltage correct for both YES Replace condenser fan motor NO Check for 13 VDC Is voltage correct for both YES Repair wiring between main control board and condenser fan motor NO ...

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