Kenmore 795.78752.801 Page 1 Service Manual Download

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CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

REFRIGERATOR

SERVICE MANUAL

Model #s:

795.78752.801
795.78753.801
795.78754.801
795.78759.801
795.78762.801
795.78763.801
795.78764.801
795.78769.801

P/No. MFL48179003 (Last Revision: M

. 25. 2008)

Summary of Contents for 795.78752.801

Page 1: ... READ THE SAFETY PRECAUTIONS IN THIS MANUAL REFRIGERATOR SERVICE MANUAL R Model s 795 78752 801 795 78753 801 795 78754 801 795 78759 801 795 78762 801 795 78763 801 795 78764 801 795 78769 801 P No MFL48179003 Last Revision M 25 2008 ...

Page 2: ...LY METHOD 16 FAN AND FAN MOTOR DISASSEMBLY METHOD 16 PULL OUT DRAWER 17 4 ADJUSTMENT 18 19 COMPRESSOR 18 PTC STARTER 18 OLP OVERLOAD PROTECTOR 19 TO REMOVE THE COVER PTC 19 5 CIRCUIT DIAGRAM 20 6 TROUBLESHOOTING 21 25 COMPRESSOR AND ELECTRIC COMPONENTS 21 OTHER ELECTRICAL COMPONENTS 22 SERVICE DIAGNOSIS CHART 23 REFRIGERATION CYCLE 24 25 7 OPERATION PRINCIPLE REPAIR METHOD OF ICEMAKER 26 28 8 DESC...

Page 3: ...547 kWh yr Energy Star 1 4 NO LOAD PERFORMANCE CONTROL POSITION MID MID And Ambient of 70 F 90 F Fresh Food F 33 F to 41 F 33 F to 41 F Frozen Food F 4 F to 4 F 4 F to 4 F Percent Running Time 35 45 50 F 70 F 1 5 REFRIGERATION SYSTEM Minimum Compressor Capacity Vacuum 21 MIN Minimum Equalized Pressure 70 F 49 PSIG 90 F 56 PSIG Refrigerant R134a 4 76 oz Compressor 956 BTU hr 1 6 INSTALLATION Cleara...

Page 4: ... 34 1 4 in Depth w Handles B 31 3 4 in Depth w o Door C 27 7 8 in Depth Total with Door Open D 46 1 2 in Height to Top of Case E 68 3 8 in Height to Top of Door Hinge F 69 3 4 in Width G 35 3 4 in Width door open 90 deg w o handle H 39 1 4 in ...

Page 5: ...risper GlideÔNÕServe Cube Ice Maker Use this page to become more familiar with the parts and features Page references are included for your convenience NOTE This guide covers several different models The refrigerator you have purchased may have some or all of the items listed below The locations of the features shown below may not match your model Extra Ice Bin Pull out Drawer Durabase Divider Til...

Page 6: ... before installing Failure to do so could result in death or serious injury Do not put hands or feet or other objects into the air vents base grille or bottom of the refrigerator You may be injured or receive an electrical shock Be careful when you work with the hinge base grille and stopper You may be injured Open the door Remove the top hinge cover screw 1 Use a flat head screwdriver to pry back...

Page 7: ...ining sides of door Door Gasket Replacement 1 Insert gasket bracket clips 1 Insert gasket bracket edge beneath door frame edge 2 Turn upper gasket bracket spring so that the spring ends are in the door channel 3 Push in clip until you hear it snap securely into place 4 Push in remaining clip until you hear it snap securely into place Note Make sure that no part of gasket bracket edge protrudes fro...

Page 8: ...wn 3 Insert additional snap rings until the doors are aligned Three snap rings are provided with unit 3 4 FAN AND FAN MOTOR EVAPORATOR 1 Remove the freezer shelf If your refrigerator has an icemaker remove the icemaker first 2 Remove the plastic guide for slides on left side by unscrewing phillips head screws 3 Remove the grille by removing one screw and pulling the grille forward 4 Remove the Fan...

Page 9: ...ll out the grille assembly Figure 10 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 11 3 6 LAMP Unplug Refrigerator or disconnect power at the circuit breaker If necessary remove top shelf or shelves 3 6 1 Refrigerator Compartment Lamp 1 Release 2 screws 2 Hold both ends with your both hands and pull it downward...

Page 10: ...t and right side of the Cover Assembly dispenser as shown in the picture and pull and remove it The cover dispenser is attached with a hook w w CAUTION When replacing the dispenser cover in the reverse order of removal be careful that the lead wire does not come out and the water tube is not pinched by the dispenser cover as shown in the picture below 3 10 DISPLAY PWB REPLACEMENT 1 Pull up and out...

Page 11: ...onnect the wire harness 3 Remove the funnel 4 Replace in reverse order 3 14 ICE CORNER DOOR REPLACEMENT 1 Loosen the front screw as shown in the picture 2 Lift up the hinge with one hand 3 Pull out the Ice Corner Door with the other hand 3 15 ICEMAKER ASSEMBLY 1 Loosen two screws as shown in the first picture 2 Disconnect the wire harness ground screw replace theIcemaker assembly in the reverse or...

Page 12: ...the 5 stainless screws holding the auger motor cover shown in the picutres below 2 Grip the bottom of motor cover assembly and pull out it 3 Disconnect wire harness of motor cover assembly There is a auger motor on the back as shown in the picture 12 Auger Motor ...

Page 13: ...e 2 Lift the lower part slightly 3 Take the Ice Bin out slowly 3 18 HOW TO INSERT A DOOR ICE BIN 1 Insert the Ice Bin slightly tilting it to avoid touching the Icemaker especially ice maker lever Insert the ice bucket carefully avoid contacing the automatic shut off arm 13 1 2 ...

Page 14: ...e freezer door up to unhook it from the rail support and remove Pull both rails to full extension Step 5 First Remove the gear from the left side first by releasing the tab behind the gear place a screwdriver between the gear and the tab and pull up on the gear Second Remove the center rail Third Remove the gear from the right side by following the same steps for the left side NOTE THIS TAB MUST B...

Page 15: ...will align itself by pushing the rails all the way into the freezer section Pull the rails back out to full extension Step 6 Reinstall the two screws into the guide rails one from each side Step 3 Insert the rail into the left side gear and insert the gear into the clip Step 5 Reinstall the freezer door by inserting the rail tabs into the guide rail Step 7 Reinstall the lower basket and close the ...

Page 16: ...D 1 Using a short screwdriver loosen one SCREW in DRAIN PIPE ASSEMBLY and one connected to the MOTOR COVER 2 Pull and separate the FAN ASSEMBLY and MOTOR turning counterclockwise based on the MOTOR SHAFT The assembly is in the reverse order of the disassembly and take special care for the following details 1 Be careful not to bend the tube during assembly 2 Press the WATER DISPENSER button until w...

Page 17: ...ntly lift the gear part of rear left and right side of the drawer and pull it out in direction To install reposition the gear part of rear left and right side of the drawer after pulling out both rails as much as possible and gently push down both left and right side while checking the hook on the front part 17 2 3 1 Hook ...

Page 18: ...phase induction motor The starting operation the PTC allows current flow to both the start winding and main winding 4 2 3 PTC Applied Circuit Diagram Starting Method for the Motor 4 2 4 Motor Restarting and PTC Cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can restart 2 The PTC device generates heat during operation Therefore it must be allowed to...

Page 19: ... COVER PTC 1 Remove the Cover Back M C 2 Disconnect two housing upper side of comp connected in 3 Loosen two screws on comp base 4 Use a L shaped flap tool to pry off the cover 5 Assembly in reverse order of disassembly Part Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 Physical termination part number Electrical characteristics part number No Name Base phenolic UL 94 V 0 rate...

Page 20: ...RCUIT DIAGRAM 20 3 R ROOM LED MODULE 2 D E 1 WH BK RD R DOOR OPEN PERCEPTION H I F DOOR OPEN PERCEPTION F E F G D I H G 3 F DOOR LED MODULE 2 D E 1 WH BN SB PR GY GY BL WH SB BN F DOOR S W R DOOR S W BK RD ...

Page 21: ...ly needs to be checked by an electrician Replace Compressor Supply voltage rating with 10 Applied voltage isn t in acceptable range 115V 10 Remove PTC Starter from Compressor and measure voltage between Terminal C of Compressor and Terminal 5 or 6 of PTC Check resistance between M C S C and M S in Motor Compressor Check resistance of two terminals in PTC Starter Check resistance of two terminals i...

Page 22: ...apacity Replace indicated component Advise customer that the Power supply needs to be checked by an electrician Replace indicated component Cause Check voltage at starting devices Check current flowing in sub coil of 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 indicat...

Page 23: ... high Is there a gap in the door gasket Is 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 Check if the door gasket is dirty with an item like juice Is the refrigerator level Is there too much food in the refrige...

Page 24: ...or don t in inlet only temperature The capillary tube is faulty cool normally WHOLE Freezer Flowing sound of refrigerant Equal to ambient Normal discharging of the CLOG compartment and is not heard and frost isn t temperature Refrigerant Refrigerator don t cool formed MOISTURE Cooling operation Flowing sound of refrigerant Lower than Cooling operation restarts CLOG stops periodically is not heard ...

Page 25: ...ial Very Fast Inefficient Compressor Partial Restriction Complete Restriction Equalization Test Condenser Temperature None Very Fast Very Slow Very Slow Hotter than Normal Air Low Side Leak Loss of Change Compressor Not Pumping Cap Tube Sound Room Temperature Trace of Oil Undercharge Leak Yes No Faint Fast None to Weak The equalization test is trying to restart a compressor using a start kit after...

Page 26: ...its until water becomes ICE after starting the icemaking operation Runs MOTOR to drop ice from the tray into the ICE BIN During harvest mode check if the ice bin is full Performs Ice Making Mode after supplying water by operating the SOLENOID in ICE VALVE To operate LINE and SERVICE press and hold the Fill Key for 3 seconds The icemaker will run through 3 stages Harvest Fill Icemaking Reaches Star...

Page 27: ...f ice in the ice storage bin while rotating with the EJECTOR A Ice storage bin is full The EJECTOR stops heater off B Ice storage bin is not full The EJECTOR rotates twice to open for ice If the EJECTOR does not rotate once within 5 minutes in B mode separate heater control mode starts operating to prevent the EJECTOR from being constrained It is recommended that the user open for ice to return to...

Page 28: ...pre test setting Diagnosis TABLE 7 3 DEFECT DIAGNOSIS FUNCTION 7 3 1 ERROR CODES shown on Ice Maker water supply control panel 28 STAGE ITEMS INDICATOR REMARKS 1 2 3 4 5 6 HEATER MOTOR HALL IC I HALL IC II VALVE Reset Five seconds after heater starts a heater will go off if the temperature by sensor is higher than 10 C Five seconds after heater starts you can confirm that a motor is moving Check i...

Page 29: ...ck the display the dispenser and the control panel press and hold the LOCK button for 3 seconds The locked pad lock icon is displayed 3 The LOCK button is the only control feature that remains active in the locked state The buzzer sound other control buttons and the dispenser are deactivated 4 To release from the locked state press and hold the LOCK button again for 3 seconds 8 1 4 Filter conditio...

Page 30: ...continuously 8 1 8 CONTROL OF FREEZER FAN MOTOR 1 Freezer fan motor has high and standard speeds 2 High speed is used at power up for Ultra Ice and when refrigerator is overloaded Standard speeds is used for general purposes 3 To improve cooling speed the RPM of the freezer fan motor change from normal speed to high 4 High speed 2700RPM Initial power on or load corresponding operation Ultra Ice No...

Page 31: ...ins when Ultra Ice has run for more than 90 minutes Ultra Ice will run for two hours after the defrost is completed 3 If Ultra Ice is pressed during defrost Ultra Ice LCD is on but this function will start seven minutes after defrost is completed and it shall operate for three hours 4 If Ultra Ice is selected within seven minutes after compressor has stopped the compressor compressor delays seven ...

Page 32: ...g won t function if its sensor is defective wires are cut or short circuited 8 1 14 Defect Diagnosis Function 1 Automatic diagnosis makes servicing the refrigerator easy 2 When a defect occurs the buttons will not operate but the tones such as ding will sound 3 When the defect CODE removes the sign it returns to normal operation RESET 4 The defect CODE shows on the Refrigerator and Freezer Display...

Page 33: ...e then Defrosting if Defrosting sensor is not over 46 F 8 C it is caused It is caused when F B signal isn t over 65 seconds during Brushless DC FAN motor operating It is caused when F B signal isn t over 65seconds during Brushless DC FAN motor operating It is caused when F B signal isn t over 65seconds during Brushless DC FAN motor operating Communication Error between Micom of Main PCB and Displa...

Page 34: ...ction Test MODE OPERATION FUNCTION REMARKS TEST1 TEST2 TEST3 RESET Push test button one time at main PCB controller Push test button again for TEST MODE 2 Push test button again for TEST MODE 3 Push test button for the 4th time and the control is Put batch into the previous setting 1 peration of the COMPRESSOR and FAN Freezer Condenser Icing 2 Stepping DAMPER OPEN 3 Defrosting HEATER OFF 4 DISPLAY...

Page 35: ... Vdc and the MICOM and IC 5 Vdc The voltage for each part is as follows VA1 is a part for preventing over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in blowout of the fuse in order to protect the elements of the secondary part of the TRANSFORMER PART VA 1 CE 3 CE 4 CE 5 VOLTAGE 115 Vac 12 Vdc 15 5 Vdc 5 V ...

Page 36: ...ing compartment fan Pin2 3 of con4 MOTOR OFF 2V or less MOTOR ON 13V 15V Circuit Pin Number Pin Number Output Voltage I Maker Pilot Valve Con3 Pin3 Con3 Pin2 115 VAC R R Door R L Door Heater Con3 Pin8 Con3 Pin2 115 VAC Def Heater Con3 Pin10 Con3 Pin2 115 VAC Water Pilot Valve Con3 Pin11 Con3 Pin2 115 VAC Compressor Con3 Pin12 Con3 Pin2 115 VAC LAMP R Con3 Pin9 Con3 Pin2 115 VAC LAMP F Con3 Pin7 Co...

Page 37: ... 37 2 3 Machine compartment fan 2 4 Icing compartment fan Pin8 9 of con4 MOTOR OFF 2V or less MOTOR ON 13V 15V Pin5 6 of con4 MOTOR OFF 2V or less MOTOR ON 13V 15V ...

Page 38: ... surrounding temperature into MICOM Opening or short state of each temperature sensor are as follows Closed 5 V Open 0V Freezer Refrigerator Door Measurement Location Pin 11 12 of con4 Ref Door Pin 5 6 of con6 Fre Door SENSOR CHECK POINT NORMAL 30 C 50 C SHORT CIRCUITED OPEN Freezer sensor POINT Voltage Refrigerator sensor POINT Voltage 0 5 V 4 5 V 0 V 5 V Defrosting sensor POINT Voltage Room Temp...

Page 39: ...ed Measure the F SENSOR SUPER FROST SENSOR R1 R2 SENSOR after disconnect CON5 of PWB ASSY MAIN TEMPERATURE RESISTANCE OF FREEZER ICING RESISTANCE OF REFRIGERATOR SENSOR DEFROST SENSOR ROOM SENSOR 20 C 22 3 KΩ 77 KΩ 15 C 16 9 KΩ 60 KΩ 10 C 13 0 KΩ 47 3 KΩ 5 C 10 1 KΩ 38 4 KΩ 0 C 7 8 KΩ 30 KΩ 5 C 6 2 KΩ 24 1 KΩ 10 C 4 9 KΩ 19 5 KΩ 15 C 3 9 KΩ 15 9 KΩ 20 C 3 1 KΩ 13 KΩ 25 C 2 5 KΩ 11 KΩ 30 C 2 0 KΩ 8...

Page 40: ...h test button once To close the damper push test button twice 8 2 5 Dispenser Drive Circuit Circuit Pin Number Pin Number Output Voltage Auger Motor Con1 Pin12 Con1 Pin4 115 VAC Solenoid Cube Con1 Pin11 Con1 Pin4 115 VAC Pilot Water Valve Con1 Pin10 Con1 Pin4 115 VAC Solenoid Dispenser Con1 Pin9 Con1 Pin4 115 VAC Heater Con1 Pin7 Con1 Pin4 115 VAC ...

Page 41: ... 41 8 2 6 LED in Refrigerator Freezer room Apply for LED Model CON6 12V GND 14 15 Circuit Pin Number Pin Number Output Voltage LED Module Con6 Pin14 Con6 Pin15 12 VDC ...

Page 42: ...VAPORATORandthe surfacetemperatureof thecondenserpipe USETESTMODE1 forcedCOOLING Checktheamountoffrost stickingonthe EVAPORATOR oftheRefrigerator SENSOR Checkthesealwhenthe doorisclosed POWERSOURCEis poor Appliedvoltageerror CONNECTOR connectionispoor TRANSFUSEisopen COMPRESSORlocked orblocked OLP PTCispoor COMPRESSORRELAY ispoor THECONNECTING WIREispoor Refrigerantleakage FANMOTORispoor CONNECTIN...

Page 43: ... forcedDEFROSTING CheckDRAINPIPE Makesurethat DEFROSTSENSORis connected Makesurethat FREEZER REFRIGERATOR DOORisclosed FANMOTORispoor Passageofcoolairis blocked EVAfrozen Doorlinerdamaged HEATERdisconnection TEMPERATUREFUSE disconnection Connectionispoor DEFROST SENSORis poor HEATERRELAYispoor DRAINPIPEisblocked Connectionispoor DOORdoesnotclose properly MakesuretheDOOR isattached ReplaceFANMOTOR ...

Page 44: ... 44 8 4 MAIN PWB ASSEMBLY AND PARTS LIST 8 4 1 Main PWB Assembly ...

Page 45: ... 45 8 4 2 Dispenser Drive PWB Assembly ...

Page 46: ... Para pedir servicio de reparaci n a domicilio y para ordenar piezas 1 888 SU HOGARSM 1 888 784 6427 Au Canada pour service en fran ai s 1 800 LE FOYERSM 1 888 533 6937 www sears ca The model number of your refrigerator is found on the serial plate inside All repair parts listed are available for immediate purchase or special order when you visit your nearest Sears Service Center or the Service De...

Page 47: ...09D 158A B03 B04 S17 S15 158B 145B B03 106A 610A 103C 402A 410G 406B S10 S12 S11 S19 S20 S18 313A S02 603B S03 S03 S11 S14 262B B02 B03 152B S14 262H 310B 327A 610B 610B 301A 406D 207C 402A 249D 249C 610C 411A 407A 405F 404A 405C 332C 135D 407B S16 405B 329A ƒS 303D 303A CASE PARTS CAUTION Use the part number to order part not the position number 271A 271B 271C 271D 120B 145A 282G 282F 120A 503D ...

Page 48: ...10JA3004A 4510JA3004A 4510JA3004A 4510JA3004A Lever Hinge 271C 4775JJ2014A 4775JJ2014A 4775JJ2014A 4775JJ2014A Hinge Assembly Upper 282F MBL38019501 MBL38019501 MBL38019501 MBL38019501 Cap Duct 282G 5006JA3111A 5006JA3111A 5006JA3111A 5006JA3111A Cap Duct 283B 4774JJ3002A 4774JJ3002A 4774JJ3002A 4774JJ3002A Hinge Lower 300A TCA31748001 TCA31748001 TCA31748001 TCA31748001 Compressor Set Assembly 30...

Page 49: ...Controller Assembly 402A 6600JB3007K 6600JB3007L 6600JB3007L 6600JB3007L Switch Push Button 404A 4681JK1004E 4681JK1004E 6600JB3007L 4681JK1004E Motor DC 405B 4810JJ0003A 4810JJ0003A 4810JJ0003A 4810JJ0003A Bracket Motor 409D EAV43060804 EAV43060804 EAV43060804 EAV43060804 LED Assembly 409E EAV43060803 EAV43060803 EAV43060803 EAV43060803 LED Assembly 410G 0CZZJB2012K 0CZZJB2012K 0CZZJB2012K 0CZZJB...

Page 50: ...A2054J 3391JA2054J Tray Assembly Drawer 145C 4975JA1040B 4975JA1040B 4975JA1040B 4975JA1040B Guide Assembly Rail 145F 4975JA1040A 4975JA1040A 4975JA1040A 4975JA1040A Guide Assembly Rail 237C 4974JJ1031A 4974JJ1031A 4974JJ1031A 4974JJ1031A Guide Drawer 250C 4470JA2008A 4470JA2008A 4470JA2008A 4470JA2008A Gear Ice 250D 5006JA2069A 5006JA2069A 5006JA2069A 5006JA2069A Cap Cover 250E MAK36519001 MAK365...

Page 51: ...Y 4890JJ1007Y Shelf Glass 142A AHT36963703 AHT36963703 Shelf Assembly Refrigerator 142B AHT36963801 AHT36963801 Shelf Assembly Refrigerator 141E 5027JJ2012H 5027JJ2012H Shelf Assembly Net 145D MJS42244701 MJS42244701 Tray Fresh Room 146A 146E ACQ36701703 ACQ36701703 Cover Assembly Tray 147A 5074JJ1016A 5074JJ1016A Bucket Dairy 147C 3550JJ1084A 3550JJ1084A Cover Bucket 151A AJP36702104 AJP36702104 ...

Page 52: ...243C 243A 243C 243B 262C S25 147C 147A 241G 244A 244A 250A 205C 205B 205A 616J 603C 615A 243B 201A 203A 212D 200A 234B 234D 250B 249F S34 281E 281G 249E S34 281D 281G 249S 281F 281F 250B DOOR PARTS CAUTION Use the part number to order part not the position number Only for the service 249Q 249R 249P 249G 249H ...

Page 53: ...430JJ2004B 4430JJ2004B 4430JJ2004B Cam Shaft 234C 4931JJ2002E 4931JJ2002A 4931JJ2002C 4931JJ2002A Holder Assembly Gasket 234D 4931JJ2002F 4931JJ2002B 4931JJ2002D 4931JJ2002B Holder Assembly Gasket 241A AAP33686303 AAP33686303 AAP33686303 AAP33686303 Basket Assembly Door 241B MAN38142901 MAN38142901 MAN38142901 MAN38142901 Basket Door 241C MAN39723202 MAN39723202 MAN39723202 MAN39723202 Basket Wind...

Page 54: ...MDR42340502 MDR42340504 Funnel 278F 6871JB2074A 6871JB2074A 6871JB2074A 6871JB2074A PCB Assembly Display 279A ACQ36820505 ACQ36820501 ACQ36820503 ACQ36820504 Cover Assembly Dispenser 279B MCK42340001 MCK42340101 MCK42340103 MCK42340101 Cover Dispenser 279D MCK42494901 MCK42494901 MCK42494901 MCK42494901 Cover Display 279E MCR42340901 MCR42340901 MCR42340901 MCR42340901 Decor Cover Display 280B 493...

Page 55: ...751107 Door Assembly Freeze Room 630B ADD33178702 ADD33178703 ADD33178702 ADD33178702 Door Foam Assembly 630C 4987JA2012B 4987JA2012B 4987JA2012B 4987JA2012B Gasket Assembly Door 630D MEB49049002 MEB49049003 MEB49049002 MEB49049002 Handle Home Bar 630E MCR42600501 MCR42600501 MCR42600501 MCR42600501 Decor Handle 630F 4775JA2101A 4775JA2101A 4775JA2101A 4775JA2101A Hinge Assembly Upper 630G 4775JA2...

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