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Kenmore 795.7620 Service Manual

Bottom freezer refrigerator
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BOTTOM FREEZER REFRIGERATOR
REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE PRODUCT
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
MODELS:
795.7620
795.6827
795.7827
color number
www.sears.com

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  Summary of Contents for Kenmore 795.7620

  • Page 1 BOTTOM FREEZER REFRIGERATOR REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE PRODUCT READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MODELS: 795.7620 795.6827 795.7827 color number www.sears.com Sears Brands Management Corporation, Hoffman Estates, IL 60179 U.S.A.
  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ......................1. SPECIFICATIONS ....................... 2. PARTS IDENTIFICATION ....................2-1 Freezer Drawer Model..................... 2-2 Freezer Swing Model....................... 3. DISASSEMBLY ........................3-1 Fan and Fan Motor......................3-2 Defrost Control Assembly....................3-3 Lamp..........................3-4 Control Box Refrigerator....................3-5 Multiduct.......................... 3-6 Cover Valve........................3-7 Door Disassembly for Drawer Type Models..............
  • Page 3: Safety Precautions

    7. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER ........7.1 Operation principle ......................7.2 Ice maker functions ......................8. CIRCUIT OF MICOM (DRAWER TYPE MODELS).............. 8.1 Function ......................... 8.2 PCB function ........................8.3 Resistance specification of sensor ................. 9. CIRCUIT OF MICOM (SWING TYPE MODELS)..............9.1 Function .........................
  • Page 4: Specifications

    1. SPECIFICATIONS 1-1. DISCONNECT POWER CORD BEFORE SERVICING IMPORTANT: Reconnect all grounding devices. All parts of this appliance capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips, nuts or washers used to complete a path to ground are removed for service, they must be returned to their original position and properly fastened.
  • Page 5: Replacement Parts

    1-7. REPLACEMENT PARTS PERFORMANCE DATA (NORMAL OPERATING CONDITIONS) Relay............EBG32606502 6750C-0005P Overload............. SYSTEM PRESSURE (PSIG) WATTS Defrost Thermostat........6930JK2001B HIGH SIDE LOW SIDE 5300JB1100J Defrost Heater..........70°F 98 (+10 / -10) 98 (+5 / -3) (-5) to (-2) Evaporator Fan Motor......... 4681JB1027N 0CZZJB2012J Capacitor............
  • Page 6: Parts Identification

    2. PARTS IDENTIFICATION 2-1 FREEZER DRAWER MODEL Use this section to become more familiar with the parts and features. 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. Digital Sensor Control Durabase Divider...
  • Page 7: Freezer Swing Model

    2-2 FREEZER SWING MODEL Use this section to become more familiar with the parts and features. 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. Digital Sensor Control Dairy Bin Refrigerator Light...
  • Page 8: Disassembly

    3. DISASSEMBLY 3-1 FAN AND FAN MOTOR 3-3 LAMP 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.
  • Page 9: Control Box Refrigerator

    3-4 CONTROL BOX-REFRIGERATOR 1. First, remove all shelves in the refrigerator, than remove the Refrigerator control Box by loosening 2 screws. CONTROL BOX COVER LAMP Fig. 6 2. Remove the Refrigerator Control Box by pulling it downward. 3. Disconnect the lead wire on the right position and separate the lamp sockets. 3-5 MULTI DUCT 1.
  • Page 10: Cover Valve

    3-6 COVER VALVE 3-6-1 DISASSEMBLE 3-6-2 ASSEMBLE 1. Insert the cover valve as shown in the picture, push to insert 1. Push to inside the cover valve. (may need force). Fig. 9 Fig. 16 2. Push to the right and release. 2.
  • Page 11: Door Disassembly For Drawer Type Models

    3-7 DOOR DISASSEMBLY FOR DRAWER TYPE MODELS 3-7-2 REPLACE DRAWER 3-7-1 REMOVE DRAWER REFRIGERATOR DOOR REFRIGERATOR DOOR Reattach Middle Hinge Bracket with the previously Gently pry off Top Hinge Cover with a flat head screwdriver and remove. removed 2 bolts and 2 screws. Fig.
  • Page 12: Reverse Drawer Refrigerator Door

    3-7-3 REVERSE DRAWER REFRIGERATOR DOOR Turn refrigerator door upside down on a non-scratch Gently pry off Top Hinge Cover with a flat head. surface. screwdriver and remove. Loosen the 2 screws to remove the Bottom Hinge Pin Insert Bracket with Hinge Pin Insert. Fig.
  • Page 13 Flip the middle hinge bracket and position on Remove Washer and set aside. left side of refrigerator and re-attach with Using a 1/4 socket wrench, loosen and remove two bolts and a 2 phillips screws. Hinge Pin from the Middle Hinge Bracket. Fig.
  • Page 14: Pull Out Drawer

    3-7-4 PULL OUT DRAWER (a) HOW TO REMOVE PULL OUT DRAWER When removing drawer door, do not hold it IMPORTANT: To avoid possible injury, product or by the handle. Door could fall down and you may be property damage, you will need two people to perform injured grasp door with both hands as pictured below the following instructions.
  • Page 15 (b) HOW TO INSTALL PULL OUT DRAWER • Align the top holes of the rail cover with the top holes of IMPORTANT: To avoid possible injury, product or the door supports to assemble the rail cover. property damage, you will need two people to perform the following instructions.
  • Page 16: How To Reverse Drawer Door Handle

    3-7-5 HOW TO REVERSE DRAWER DOOR HANDLE NOTE : Handle appearance may vary from illustrations • Install the handle mounting fasteners on this page. on the right side. Turn handle upside down. • Loosen the 2 set screws with the 3/32” Allen wrench and remove the handle.
  • Page 17: Door Disassembly For Swing Type Models

    3-8 DOOR DISASSEMBLY FOR SWING TYPE MODELS Use a 10mm or 13/32 inch socket wrench to remove the 2 bolts in Middle Hinge Bracket. Remove screws. Set Middle Hinge Bracket and other parts 3-8-1 REMOVE SWING REFRIGERATOR aside. AND FREEZER DOORS Before removing the doors, remove the Base Grille.
  • Page 18: Replace Swing Refrigerator And Freezer Doors

    3-8-2 REPLACE SWING REFRIGERATOR AND FREEZER DOORS Put refrigerator door down over the Hinge Reattach Bottom Hinge Bracket using the 2 Pin on the Middle Hinge Pin Bracket. previously removed bolts. Reattach Middle Hinge Bracket with the previously Fig. 74 removed 2 bolts and 2 screws.
  • Page 19: Reverse Swing Refrigerator And Freezer Doors

    3-8-3 REVERSE SWING REFRIGERATOR AND FREEZER DOORS Turn refrigerator door upside down on a non-scratch screwdriver and remove. surface. Loosen the 2 screws to remove the Bottom Hinge Fig. 77 Pin Insert Bracket with Hinge Pin Insert. Fig.81 Hinge Pin Hinge Pin Insert Insert Bracket...
  • Page 20 Remove the screw on the opposite side of the door. Remove Washer and set aside. This screw is no longer necessary and can be Using a 1/4 socket wrench, loosen and remove discarted. Hinge Pin from the Middle Hinge Bracket. Move the Hinge Pin Insert Bracket to the other side Fig.
  • Page 21 Using a 13/32” or 10mm socket wrench with With a flat-head screwdriver, carefully pry off and 2” extension, loosen the 2 bolts and remove remove the cover over the screw holes on the left side bottom hinge from right side. of refrigerator housing.
  • Page 22 Put freezer door down over the Bottom Hinge Pin on the Bottom Hinge Bracket. Reattach Middle Hinge Pin using a 1/4” socket wrench. Replace washer. Put refrigerator door down over the Hinge Pin on the Middle Hinge Pin Bracket. Fig. 98 Washer Middle Hinge Pin...
  • Page 23: How To Reverse Swing Door Handle

    3-8-4 HOW TO REVERSE SWING DOOR HANDLE Install the plug buttons on the left side. NOTE: T o assist in installing the handle on the right • side, place a small piece of masking tape near the Plug buttons top of the handle before removing. Grasp the handle tightly with both hands and slide the handle up (this may require some force).
  • Page 24: After Completing The Job

    3-9 AFTER COMPLETING THE JOB Make sure that the four corners of the door gasket are 4. Open both doors again and check to make sure that they close easily. If not, tilt the refrigerator slightly more to the rear .
  • Page 25: Adjustment

    4. ADJUSTMENT 4-1 COMPRESSOR 4-2-3 PTC-Applied Circuit Diagram Starting Method for the Motor 4-1-1 Role The compressor intakes low temperature and low pressure gas from the evaporator of the refrigerator and compresses OVERLOAD PROTECTOR this gas to high-temperature and high-pressure gas. It then delivers the gas to the condenser.
  • Page 26: Olp (Overload Protector)

    4-3 OLP (OVERLOAD PROTECTOR) 4-3-1 Definition of OLP cross section) (OVERLOAD PROTECTOR (1) OLP (OVERLOAD PROTECTOR) is attached to the Customer part number Compressor and protects the Motor by opening the Lot code/ 12345678 circuit to the Motor if the temperature rises and date code 330 FBYY -S1 BOX98...
  • Page 27: Circuit Diagram

    5. CIRCUIT DIAGRAM 5-1 For Drawer Type Models CIRCUIT DIAGRAM PWB(PCB) ASSEMBLY, DISPLAY CON 102 CON 101 4 5 6 3 PIPE HEATER 6 5 4 1413 12 11 6 5 4 1110 9 8 7 6 5 4 CON 5 CON 6 CON 7 CON 8...
  • Page 28: For Swing Type Models

    5-2 For Swing Type Models CIRCUIT DIAGRAM PWB(PCB) ASSEMBLY, DISPLAY 1 2 3 4 5 6 7 8 9 PIPE HEATER CON101 CON 5 CON 6 CON 7 CON 8 R-DOOR S/W 2 BN CON 4 RT-SENSOR C-FAN PR 4 CON 9 I/M MOTOR F-FAN...
  • Page 29: Troubleshooting

    6. TROUBLESHOOTING 6-1. COMPRESSOR AND ELECTRIC COMPONENTS (Rated voltage Remove PTC-Starter Power Source. from compressor and measure voltage between T erminal C of compressor and terminal 5 or 6 of PTC. No voltage. Reconnect. Check connection condition. Replace OLP. Advise customer that Applied voltage isn't power supply needs to in acceptable range.
  • Page 30: Ptc And Olp

    6-2. PTC AND OLP Separate PTC-Starter Observation value is Normal operation of compressor is impossible from Compressor and ±20% 115V/60Hz : 6.8 or poor. measure resistance between No. 5 and 6 of PTC-Starter with a T ester. (Figure 1) Replace PTC- The resistance value Starter.
  • Page 31: Other Electrical Components

    6-3 OTHER ELECTRICAL COMPONENTS • Not cooling at all Check for open short or Compressor Cause doesn't run. incorrect resistance readings in the following components a. Starting devices Short, open, or broken. Poor contact b. OLP or shorted. Coil open or shorted. c.
  • Page 32: Service Diagnosis Chart

    6-4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY No Cooling. • • 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. •...
  • Page 33: Refrigeration Cycle

    6-5 REFRIGERATION CYCLE • Troubleshooting Chart TEMPERATURE STATE OF STATE OF THE CAUSE REMARKS OF THE THE UNIT EVAPORATOR COMPRESSOR - Refrigerant level is low due to a Freezer Low flowing sound of A little higher than leak. ¥ compartment and refrigerant is heard and frost ambient PARTIAL...
  • Page 34: Sealed System Diagnosis

    6-5-1 SEALED SYSTEM DIAGNOSIS Not Cooling Complaint All components operating, No airflow problems, Not frosted up as a defrost problem problem has been isolated to sealed system area Frost None Partial Pattern? Equalization Equalization Test Test Very Fast Very Slow Very Slow Very Fast Fast...
  • Page 35: Operation Principle And Repair Method Of Icemaker

    7. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 7-1 OPERATION PRINCIPLE 7-1-1 Operation Principle of Icemaker Power Input Initial Control • Adjusts Ejector to Start Position with power on. Icemaking • Waits until water in the TRAY is frozen after Icemaker Control Starts operation.
  • Page 36: Operation Principle

    7-2 ICEMAKER FUNCTIONS 7-2-1 Start Position 1) When power is initially applied or reapplied after power is cut, it detects level of the TRAY after completion of MICOM initialization. The detecting lever moves up and down. 2) The level of icemaker tray is judged by output signal, high and low signal, of HALL SENSOR. Make the tray to horizontal by rotating ice ejection motor in normal or reverse direction so that High/Low signal can be applied to MICOM Pin (P22).
  • Page 37 MAXIMUM TILTING POINT Bank is not full HALL Sensor Output Signals Bank is full HALL Sensor Output Signals Ice checking AXIS LEVEL 30° Ice checking AXIS -160° -170° -8°-0° -10° -32° -41° -53° -58° -80° Lock Lock Ice ejection Icemaking original point 2±1 sec Horizontal...
  • Page 38: Ice Maker Functions

    7-2-4 Test Icemaker Mode Test function starts when test switch is pressed for more than 3 seconds. User shouldn’t force operation while doing test mode, service or cleaning. Test switch will work only when ice tray its in horizontal position, not during ice ejection or water supplying. When pressing the Test Switch, feeler arm will sense and then ice tray will start ice ejection, after twisting, ice tray returns to initial position.
  • Page 39: Circuit Of Micom (Drawer Type Models)

    8. CIRCUIT OF MICOM (DRAWER TYPE MODELS) 8-1 FUNCTION 8-1-1 Function 1. Initially set the Refrigerator control at 37ºF (3ºC) and the Freezer control at 0ºF(-18ºC) You can adjust the Refrigerator and the Freezer control temperature by pressing the Colder ADJUST button. 2.
  • Page 40 8-1-6 Alarm for Open Door 1. This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened. 2. One minute after the door is opened, the buzzer sounds three times each for 1/2 seconds. These tones repeat every 30 seconds.
  • Page 41: Defect Diagnosis Function

    8-1-10 Defect Diagnosis Function Micom error are separated in “Main Errors” (Affect directly refrigerator performance) and “Secondary Errors” (don’t affect the refrigerator performance). To check in Display the error present, is necessary press Cold key on freezer and Cold key on refrigerator more than 1 Second, if no there any error, all LED will be illuminated, if a main error is present, only certain LED will be illuminated, in case of secondary errors, only one LED or icon will not illuminated.
  • Page 42: Test Mode

    8-1-11 TEST Mode 1. The T est mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error. 2. The test mode is operated by pressing two buttons on the Display panel. 3.
  • Page 43: Pcb Function

    8-2 PCB FUNCTION CON 7 CON 6 CON 5 CON 4 CON 8 CON 9 CON 10 CON 1 CON 3 CON 2 - 43 -...
  • Page 44: Power Circuit

    8-2-1 Power Circuit CON 2 CON 1 CON 3 11 10 POWER SUPPLY CORD CAPACITOR PART GN/YL (GN) (GN) P.T.C * ALTERNATIVE COMP' * P.T.C OPTION COMP' ACCESSORIES ACCESSORIES MC,MQ COMP' EG COMP' *PLUG TYPE, CAPACITOR PART, P.T.C START OPTION, DOOR HEATER, RT-SENSOR AND COMP' ACCESSORIES ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN DIFFERENT LOCALITIES AND MODEL TYPE.
  • Page 45 PWB(PCB) ASSEMBLY, DISPLAY CON 102 CON 101 PIPE HEATER 4 5 6 3 6 5 4 1413 12 11 6 5 4 1110 9 8 7 6 5 4 CON 5 CON 6 CON 7 CON 8 R-DOOR S/W 3 GY CON 4 RT-SENSOR 1 BN...
  • Page 46 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 F- Sensor Con 7 Pin 10 Con 7 Pin 11 R- Sensor Con 7 Pin 8 Con 7 Pin 9...
  • Page 47: Resistance Specification Of Sensor

    8-3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE DETECTED RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR SENSOR SENSOR DEFROST SENSOR & ROOM SENSOR -20°C 22.3 K 77 K -15°C 16.9 K 60 K -10°C 13.0 K? 47.3 K? -5°C 10.1 K? 38.4 K? 0°C 7.8 K? 30 K?
  • Page 48: Circuit Of Micom (Swing Type Models)

    9. CIRCUIT OF MICOM (SWING TYPE MODELS) 9-1 FUNCTION 9-1-1 Function 1. When the appliance is plugged in, it is set to "4" for Refrigerator and "4" for freezer. You can adjust the Refrigerator and the Freezer control temperature by pressing the ADJUST button. 2.
  • Page 49 9-1-5 Alarm for Open Door 1. This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened. 2. One minute after the door is opened, the buzzer sounds three times each for 1/2 seconds. These tones repeat every 30 seconds.
  • Page 50 9-1-9 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.
  • Page 51 9-1-10 TEST Mode 1. The T est mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error. 2. The test mode is operated by pressing two buttons at Display panel. 3.
  • Page 52: Pcb Function

    9-2 PCB FUNCTION CON 7 CON 6 CON 5 CON 4 CON 8 CON 9 CON 10 CON 1 CON 3 CON 2 - 52 -...
  • Page 53 9-2-1 Power Circuit Power is supplied to the control board at the pin 11 and 9 of connector #1. (Refer to figure 1) CON 2 CON 3 CON 1 POWER SUPPLY CORD CAPACITOR PART GN/YL (GN) (GN) P.T.C * ALTERNATIVE COMP' * P.T.C OPTION ACCESSORIES COMP' ACCESSORIES...
  • Page 54 PWB(PCB) ASSEMBLY, DISPLAY 1 2 3 4 5 6 7 8 9 PIPE HEATER CON101 CON 5 CON 6 CON 7 CON 8 R-DOOR S/W 2 BN CON 4 RT-SENSOR C-FAN PR 4 CON 9 I/M MOTOR F-FAN PWB(PCB) ASSEMBLY, MAIN HALL STEPPING I/M TEST S/W...
  • Page 55 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 F- Sensor Con 7 Pin 10 Con 7 Pin 11 R- Sensor Con 7 Pin 8 Con 7 Pin 9...
  • Page 56: Resistance Specification Of Sensor

    9-3 RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE DETECTED RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR SENSOR SENSOR DEFROST SENSOR & ROOM SENSOR -20°C 22.3 K 77 K -15°C 16.9 K 60 K -10°C 13.0 K? 47.3 K? -5°C 10.1 K? 38.4 K? 0°C 7.8 K? 30 K?
  • Page 57: Exploded View And Replacement Part List

    #EV# 9. EXPLODED VIEW & REPLACEMENT PART LIST CASE PARTS Caution: Use the part number to order part, not the position number. 103B 281A 281B 103A 410A 409D 406B 503G 282E 503F 282F 903D 503D 145A 610A 503C 501A 409B 503E 120B 411A...
  • Page 58 #EV# FREEZER PARTS Caution: Use the part number to order part, not the position number. 136B 131A 145C 248E 248F 145F 136A -58-...
  • Page 59 #EV# REFRIGERATOR PARTS Caution: Use the part number to order part, not the position number. 141A 141B 141A 141C 141B 141C 143E 140D 140B 140E 143E 140D 140B 140E -59-...
  • Page 60 #EV# REFRIGERATOR PARTS (PANTRY) Caution: Use the part number to order part, not the position number. 167B 154A 145J 151B 145G 151A 145H 154B 128B 170A 128A -60-...
  • Page 61: Door Parts

    #EV# DOOR PARTS Caution: Use the part number to order part, not the position number. 241F 230A 241A 233A 231A 286A 241B 212G 212J 241C 241E 244E 244A 286A 241D 212J 243A 249A 249E 250B 205C 250A 200A 249J 203A 621B 201A 621C...
  • Page 62 #EV# WATER & ICEMAKER PARTS Caution: Use the part number to order part, not the position number. 600A 622B 627A 623C 619C 619A 262D -62-...
  • Page 63 #EV#...
  • Page 64 #EV#...
  • Page 65 #EV#...
  • Page 66 MFL62078207...

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795.6827795.7827