Kenmore 795.75312.900 Service Manual Download Page 22 | Manualshive

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7. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER

7-1 OPERATION PRINCIPLE
7-1-1 Operation Principle of Icemaker

Start Position

Icemaking

Mode

Harvest

Mode

Park Position

Fill

• Waits until water becomes cold after starting the

Icemaking operation.

• Runs MOTOR to drop ice from the tray into the ICE BIN.

• Performs

Icemaking Mode

after supplying water by operating

the SOLENOID in ICE VALVE.

• With the detect lever, checks if the ICE BIN is full.

Power On

•Adjusts Ejector to

Start Position

with power on.

- 22 -

Power (On/Off) Switch

Cube Size button

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Summary of Contents for 795.75312.900

Page 1: ...ANUAL Sears Roebuck and Co Hoffman Estates IL60179 U S A www sears com CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODELS 795 75312 900 795 75313 900 795 75319 900 R TOP FREEZER REFRIGERATOR ...

Page 2: ...ves 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 perdormed by a CFC certified technician SAFETY PRECAUTIONS 1 SPECIFICATIONS 2 PARTS IDENTIFICATION 3 DISASSEMBLY 3 1 Door 3 2 Fan and fan motor 3 3 Defrost control assembly 3 4 Lamp 3 5 Control box refrigerator 4 COMPRESSOR ELECTRI...

Page 3: ... for the interpretation of this information nor can it assume any liability in connection with its use 1 3 ELECTRICAL SPECIFICATIONS Temperature Control Position MID 6 F to 8 F Defrost Control Automatic Defrost Thermostat 50 F Electrical Rating 115VAC 60Hz 1 5 2A Maximum Current Leakage 0 5mA Maximum Ground Path Resistance 0 14Ohms Energy Consumption 1 4 NO LOAD PERFORMANCE Control Position MID MI...

Page 4: ...DENSER CONDENSER FAN CONTROL FREEZER COLD AIR MIXED AIR AIR RETURN TO EVAPORATOR EVAPORATOR FRESHFOOD 1 7 REPLACEMENT PARTS Relay PTC Overload Protector OLP 6750C 0005P Defrost Thermostat 4781JK2001A Defrost Heater 6748C 0004D 5300JK1003J Evaporator Fan Motor 4681JB1029J Capacitor 0CZZJB2012J Compressor Hi Side TCA33414101 Evaporator Lo Side 5421JJ0002A Condenser 5403JJ1008A Dryer 5851JJ2002F Temp...

Page 5: ...ll of the items listed below The locations of the features shown below may not match your model CustomCube Ice maker Freezer Shelf Freezer Temperature Control Refrigerator Temperature Control Water Filter Crispers Freezer Light Freezer Door Racks Can Rack Dairy Bin B C D A E I K L J M Refrigerator Light Snack Drawer F G Shelves H N O Door Bins Ice Bin P Refrigerator Door Racks Keeps fruits and veg...

Page 6: ...ift freezer door slightly and remove it fig 3 Set aside Fig 4 connector Bottom Hinge Remove Refrigerator Door Locate the quick connector next to the Bottom Hinge and disassemble with the next steps 1 Remove locking clip 1 and set aside 2 Press back collet and pull out water connection tube 2 3 Remove connector and set aside 1 2 Locking clip Insert lines Tube Connector Fig 5 Fig 6 Bottom Nut Carefu...

Page 7: ... sure to align Hinge Pin with bottom hinge to assure proper assembly Install the hinge pin into the bottom hinge Using an adjustable wrench reinstall the bottom nut making sure it is tight Fig 10 Hinge Pin Bottom Hinge Bottom Nut Reinstall the Middle Hinge with the two bolts and a phillips screw Place washer between refrigerator door and middle hinge Once the refrigerator door is installed reconne...

Page 8: ... 32 inch socket wrench with 2 inch extension for bottom door hinge No 2 Phillips head screwdriver 1 4 inch socket wrench Flat head screwdriver for prying Adjustable wrench Reverse Freezer Door Gently pry off the Top Hinge Cover with a flat head screwdriver and remove Using 10mm or 13 32 inch socket wrench remove the 3 bolts and lift off the Top Hinge Set parts aside Lift up door slightly and remov...

Page 9: ...r and Top Hinge parts to the side and remove refrigerator door Reverse Refrigerator Door Before reversing the door remove the Base Grille Remove the cover on the left side of base grille and place it on the right side Locate the quick connector next to the Bottom Hinge and disassemble with the next steps 1 Remove locking clip 1 and set aside 2 Press back collet and pull out water connection tube 2...

Page 10: ...aside Using a 1 4 socket wrench loosen and remove hinge pin from the middle hinge pin bracket Remove washer underneath the middle hinge and set aside Lift up door watching carefully that wire harness doesn t get damaged by the Hinge Pin Using a 10mm or 13 32 inch socket wrench remove Middle hinge Bracket and set aside Using a 13 32 10mm socket wrench with 2 extension loosen the 3 bolts and remove ...

Page 11: ...e Door Closer Stop and flip it over Line up screw holes and screw it into left side of door bottom Turn door upright It is now ready for re attaching Fig 42 Insert the water dispenser tube into the left channel at the base of the dispenser cavity until it comes out of the bottom left corner of door Insert and reattach tube guide Fig 43 tube guide screw left channel right channel tube Reconnect the...

Page 12: ...lips screw Pull the wire harness out from the base as shown below Fig 49 Insert the water tube and wire harness trough the bottom hinge pin and insert the pin into the bottom of the door Note Reinstall the Bottom Nut Fig 50 Place washer between refrigerator door and middle hinge and reattach hinge pin to hinge bracket with in socket wrench With the refrigerator door fully opened reconnect tube and...

Page 13: ...arate the connector of the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 58 Fig 57 Fig 58 3 4 LAMP 3 4 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 ...

Page 14: ...ly resulting in smoke and fire 5 When replacing the compressor be careful that dust humidity and soldering flux don t contaminate the inside of the compressor Contamination in the cylinder may cause noise improper operation or even cause it to lock up 4 2 PTC STARTER COMBO 4 2 1 Composition of PTC Starter 1 PTC Positive Temperature Coefficient is a no contact semiconductor starting device which us...

Page 15: ... spring in the OLP 2 When high current flows to the compressor motor the bimetal wors 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 th...

Page 16: ...OR RD BL 1 1 RD GN 98 C WH L 2 I MAKER W VALVE V PK M BK GN S 6 2 OLP YL 3 GN 5 BL HEATER SHEATH BL RD R LAMP FUSE M THERMOSTAT BL P T C 2 6 5 3 4 EG COMP P T C OPTION 4 5 2 6 3 COMP EARTH PART PTC CR L COMBO KIT PTC OLP BL ACCESSORIES BK N OLP ALTERNATIVE COMP GN YL GREEN YELLOW GY GRAY COMP ACCESSORIES PWB PCB ASSEMBLY MAIN N CAPACITOR PART 4 BL BLUE PK PINK BO BRIGHT ORANGE BK WH BLACK WHITE YL...

Page 17: ...age between Terminal C of compressor and terminal 5 or 6 of PTC Combo Check resistance of PTC Starter Combo Check resistance of two terminals in OLP Check the power supply under load Compressor attempting to re start after being off for 5 minutes Check resistance of PTC Starter Check OLP Check starting state Check resistance of motor compressor Replace compressor Refer to Page 16 Refer to Page 16 ...

Page 18: ... 19b Observation value is 115V 60Hz 6 8 30 The resistance value is 0 short or 8 open Check another electric component Replace OLP Replace PTC Starter Combo Figure 19a Figure 19b Figure 20 Normal operation of compressor is impossible or poor Separate OLP from compressor and check resistance value between two terminals of OLP with a tester Figure 20 at room temperature PTC Combo OK OLP OK ...

Page 19: ...or broken or open contact Shorted Lack of capacity Replace indicated component Raise voltage Replace indicated component Cause Check voltage at starting devices Check current at Compressor Check rating of OLP Fan motor doesn t run Heavy frost buildup on EVAPORATOR Wire is open or shorted Coil is shorted or open Open Open Replace Defrost Heater Replace indicated component Replace indicated componen...

Page 20: ...ot operating 1 Check condenser fan motor and wiring circuit 2 Condenser coils blocked 2 Check air flow across condenser 3 Evaporator fan motor not operating 3 Check evaporator fan motor and wiring circuit 4 Internal air flow blocked 4 Check air ducts 5 Sensor not operating properly 5 Check refrigerator and freezer sensors 6 Door not sealing 6 Check for proper door seal 7 Evaporator frosted up 7 Ch...

Page 21: ...ing 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 Low pressure at high side RESSION Refrigerator refrigerant is heard and ambient of compressor due to low don t cool frost forms in inlet only temperature refr...

Page 22: ...tion Fill Waits until water becomes cold after starting the Icemaking operation Runs MOTOR to drop ice from the tray into the ICE BIN Performs Icemaking Mode after supplying water by operating the SOLENOID in ICE VALVE With the detect lever checks if the ICE BIN is full Power On Adjusts Ejector to Start Position with power on 22 Power On Off Switch Cube Size button ...

Page 23: ... Harvest Mode 1 Harvest Ice removing refers to the operation of dropping ices into the ice bin from the tray when icemaking has completed 2 Harvest mode 1 The Heater is ON for 30 seconds then the motor starts 2 Harvest mode is completed if it reaches start position again while Heater Motor are on at the same time A ice bin is full The EJECTOR stops heater off B ice bin is not full The EJECTOR rota...

Page 24: ...n t reach the 50 F 10 C in 1 hour the defrost mode is malfunctioning Refer to the defect diagnosis function Defrosting won t function if the sensor if defective wires are cut or short circuited 8 1 3 Electrical Parts Operation in Sequence 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 sa...

Page 25: ...ature panel NO Item Error Code Error Description Remarks R2 R3 R4 R5 1 Ref Sensor Ref Sensor Open or Short 2 Heater Sensor Defrost Sensor Open or Short Check each sensor 3 RT Sensor Defrosting 4 Problem 5 F FAN LOCK F FAN LOCKED Check if something is locking the F FAN Ambient Sensor Open or Short Check FUSE M D E F S E N S O R Drain Heater Drive Relay Defrost time last more than one hour and the d...

Page 26: ...o start in OFF MODE 8 1 6 Lock Function On initially operation the Lock Function is OFF If you wish lock the Water Dispenser push on the WATER LOCK button after this the WATER LOCK LED on the Display will be turned ON When the Dispenser Lock Function is active the Dispenser lamp don t operate If you wish unlock the Water Dispenser press the WATER LOCK button Then the WATER LOCK LED on the Display ...

Page 27: ...lve is active and door OPEN the valve turn OFF 5 When the OFF MODE is active the water valve is disable only the Dispenser lamp operate normally 27 8 1 9 Dispenser Lamp Function 1 Dispenser Lamp is ON while the water valve is active 8 1 10 Dispenser water valve protection If the water valve is active for 3 minutes continues the water valve will turn OFF and can t be active If it is release and pus...

Page 28: ...nd the error code is displayed 6 While an error code is displayed the test mode will not be activated MODE Key Control Operation Remarks 1 Continuous operation of the Push the test COMP Freezer FAN button once and Cooling FAN The maximum TEST 1 2 DEFROSTING HEATER OFF time for TEST 1 3 ALL DISPLAY ON is 5 min 4 LAMP RELAY ON OFF OPERATED BY DOOR SWITCH 1 COMP OFF Ref Temp Display Push the test 2 F...

Page 29: ...8 2 PCB FUNCTION 29 Con 1 Con 3 Con 2 Con 8 Con 2 Con 5 Con 6 Con 7 ...

Page 30: ...n 5 115 VAC Dispenser Valve Con 3 Pin 1 Con 3 Pin 3 115 VAC PIN DISP VALVE N CONNECTOR 3 1 3 HEATER SHEATH 6 BL POWER BL BN SB 3 YL 2 BL 3 5 SUPPLY BL 7 YL 9 SB 11 BN 10 CORD 8 4 1 CON3 BK 3 CON2 6 SB 4 CON1 2 7 5 BK 2 BN 1 BN 1 SB CON2 FUSE M WH GN YL S W BL PWB PCB ASSEMBLY ICE MAKER 2 BK BK 1 WH 2 POWER CON4 Cr 1 SHEATH CON5 Cs GN YL WH HEATER CON6 CON3 GN ICE MAKER PART ICE MAKER CON1 1 1 M BK...

Page 31: ...of 5 volts indicates an open in the sensor circuit PIN 1 2 3 4 5 6 7 8 DISPENSER S W DISP LED GND N C D SNR R SNR CONNECTOR 7 To measure the outputs of the sensors check the voltages between the pins as in the table And refer the values in the section RESISTANCE SPECIFICATION OF SENSOR SENSOR Pin Number Pin Number D SNR Con 7 Pin 3 Con 7 Pin 4 R SNR Con 7 Pin 5 Con 7 Pin 6 RT SNR Con 8 Pin 1 Con 8...

Page 32: ...67 5 C 41 F 24 1 KΩ 2 4 10 C 50 F 19 5 KΩ 2 14 15 C 59 F 15 9 KΩ 1 89 20 C 68 F 13 KΩ 1 66 25 C 77 F 11 KΩ 1 46 30 C 86 F 8 9 KΩ 1 27 40 C 104 F 6 2 KΩ 0 96 50 C 122 F 4 3 KΩ 0 72 taken To measure the outputs of the fans on the control boards check the voltages between the pins for the following components MOTOR ON MOTOR OFF Freezer Fan Con 4 pin 5 Con 4 pin 6 10 14 VCD 2 VCD or less Cooling Fan C...

Page 33: ...11A 501A 304A 282B 406B 282H S14 125D 145B S01 125D 106A B03 283B 619B 105A 317A 318A S01 328A 307A 314A 327A 308A 309A 310A 323B 312A 328A 420A 329C 319A 319C 106A 305B 305C 315A 305C 305B S01 S01 105F 103C EV 145A 33 412D 405B 405B 120A 120E 410A 409D 279A 503G 501B 120B 113F 262A 611E 615A 276D 412A 412B 113E 616B 621B 619D 616C 627B 616D 628C 903D 103D 158A 409B ...

Page 34: ...FREEZER PARTS CAUTION Use the part number to order part not the position number 405C 404A 319E S20 330B S01 332A 149F 149A 284C 284A 329A 110D S22 EV 34 405F 404Z 158E 409B 408A ...

Page 35: ...CAUTION Use the part number to order part not the position number 167B 151A 155B 151A 151C 154A 170A 128A 128B 143F 142E 142D S24 S24 140B 103E 103E 140D 143E 140B 140E S24 S24 EV 35 S24 141D 149C 141E 149E 141B 141C 141A ...

Page 36: ...art number to order part not the position number 283F 200A 201A 203A 212G 286A 210B 210A 241A 241B 230A 231A 233A 281E 234B 241C 241E 241C 241C 241D EV 36 205A 205C 205B 205D 621B 616F 276B 276C 280A 279A 113E 402C 280F 501B 621D ...

Page 37: ...ICE MAKER PARTS CAUTION Use the part number to order part not the position number EV 37 131A 600A 262D 619A 619C 602A S31 S28 618A 623C 616E S29 622B 600C ...

Page 38: ...59741301 Harness Assembly 158E 3550JJ2017C Cover Lamp 412D 6877JK2011D Harness Assembly 167B 4890JL1002V Shelf Glass 418A 5300JK1003J Heater Sheath 170A 3391JJ2004H Tray Assembly Meat 420A 4681JB1029J Motor DC 200A ADC71006706 Door Assembly Freezer 501A EBR41531308 PCB Assembly Main 201A ADD71006806 Door Foam Assembly Freezer 501B EBR59400501 PCB Assembly Display 203A 4987JJ1004T Gasket Assembly D...

Page 39: ...59741301 Harness Assembly 158E 3550JJ2017C Cover Lamp 412D 6877JK2011D Harness Assembly 167B 4890JL1002V Shelf Glass 418A 5300JK1003J Heater Sheath 170A 3391JJ2004H Tray Assembly Meat 420A 4681JB1029J Motor DC 200A ADC71006710 Door Assembly Freezer 501A EBR41531308 PCB Assembly Main 201A ADD71006809 Door Foam Assembly Freezer 501B EBR59400501 PCB Assembly Display 203A ADX52752625 Gasket Assembly D...

Page 40: ...59741301 Harness Assembly 158E 3550JJ2017C Cover Lamp 412D 6877JK2011D Harness Assembly 167B 4890JL1002V Shelf Glass 418A 5300JK1003J Heater Sheath 170A 3391JJ2004H Tray Assembly Meat 420A 4681JB1029J Motor DC 200A ADC71006707 Door Assembly Freezer 501A EBR41531308 PCB Assembly Main 201A ADD71006807 Door Foam Assembly Freezer 501B EBR59400501 PCB Assembly Display 203A 4987JJ1004X Gasket Assembly D...

Page 41: ...July 2009 ...

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