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Kenmore 795.77302.600 Service Manual

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BOTTOM FREEZER REFRIGERATOR
REFRIGERATOR
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE PRODUCT
READ THE SAFETY PRECAUTIONS IN THIS MANUAL
Sears, Roebuck and Co., Hoffman Estates, IL60179 U.S.A.
R
795.77302.600/601
795.77304.600/601
795.77306.600/601
795.77309.600/601
795.77312.600/601
795.77314.600/601
795.77316.600/601
795.77319.600/601
www.sears.com

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Summary of Contents for Kenmore 795.77302.600

  • Page 1 BOTTOM FREEZER REFRIGERATOR REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE PRODUCT READ THE SAFETY PRECAUTIONS IN THIS MANUAL 795.77302.600/601 795.77304.600/601 795.77306.600/601 795.77309.600/601 795.77312.600/601 795.77314.600/601 795.77316.600/601 795.77319.600/601 Sears, Roebuck and Co., Hoffman Estates, IL60179 U.S.A. www.sears.com...

  • Page 2: Table Of Contents

    CONTENTS SAFETY PRECAUTIONS ......................1. SPECIFICATIONS ........................2. PARTS IDENTIFICATION ....................... 3. DISASSEMBLY ........................3.1 Door ..........................3.2 Door alignment ......................... 3.3 Fan and fan motor ......................3.4 Defrost control assembly ....................3.5 Lamp ..........................3.6 Refrigerator control box ..................... 3.7 Multi duct ...........................

  • Page 3: 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. 1-2 IMPORTANT NOTICE This information is intended for use by individuals possessing adequate background of electrical, electronic and mechanical experience.
  • Page 4 PERFORMANCE DATA 1-7 REPLACEMENT PARTS (NORMAL OPERATING CONDITIONS) SYSTEM PRESSURE (PSIG) Relay ........EBG32606502 WATTS HIGH SIDE LOW SIDE Overload .......6750C-0004S Defrost Thermostat ....6615JB2005C 70°F 98 (+10 / -10) 98 (+5 / -3) (-5) to (-2) Defrost Heater .......5300JB1100J Evaporator fan motor ....4681JK1004A 90°F 98 (+10 / -10) 132 (+3 / -3)
  • Page 5 DIMENSIONS Description 7730* / 7731* Depth w/ Handles 34 ½ Depth w/o Handles Depth w/o Door 28 ¼ Depth (Total with Door Open) 45 ½ Height to Top of Case Height to Top of Door Hinge Width 32 ¾ Width (door open 90 deg. w/o handle) Width (door open 90 deg.

  • Page 6: Parts Identification

    2. PARTS IDENTIFICATION 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. Cool Sense Electronic Temperature Glide-Out Drawer Basket Control System...

  • Page 7: Disassembly

    3. DISASSEMBLY 2. Remove gasket bracket clips 3-1 DOOR There are two clips on each door. Start bracket removal near one of the middle clips. Left Door 1) Pull gasket back to expose gasket bracket clip and Loosen the cover screw (1). door frame.

  • Page 8: Door Alignment

    2. Insert gasket into channel 3-2 DOOR ALIGNMENT 1) Snap gasket assembly into the door bracket. If the space between your doors is uneven, follow the Inserting the Gasket Assembly into the Bracket Door. instructions below to align the doors: 1.

  • Page 9: Fan And Fan Motor

    3-5-1 Refrigerator Compartment Lamp 3-3 FAN AND FAN MOTOR 1. Unplug Refrigerator, or disconnect power 1. Remove the freezer shelf. (If your refrigerator has an at the circuit breaker. icemaker, remove the icemaker first) 2. If necessary, remove top shelf or shelves. 2.

  • Page 10: How To Remove And Reinstall The Pullout Drawer

    3-8 HOW TO REMOVE AND REINSTALL THE PULL OUT DRAWER 3-8-1 FOLLOW STEPS TO REMOVE Step 1) Open the freezer door. Step 2) Remove the lower basket. Step 3) Remove the two screws from the guide rails (one Step 4) Lift the freezer door up to unhook it from the rail from each side).
  • Page 11 3-8-2 FOLLOW STEPS TO REINSTALL Step 1) Reinstall the right side gear into the clip. Step 2) Insert the rail into the right side gear. Gears do not Step 3) Insert the rail into the left side gear, and insert the need to be perpendicular to each other.
  • Page 12 3.8.3 GLIDE OUT DRAWER BASKET To remove, lift basket up and pull out straight out. To Install, pull both rails out to full extension. Hook the basket supports into the rail tabs and push to the back of compartment. - 11 -...

  • Page 13: Cover Valve

    3-9 Cover Valve - Assemble - Disassemble 1. Insert the cover valve as shown in the picture, push to insert (may need force). 1. Push to inside the cover valve. 2. Push to the right and release. 2. Insert hook a & b 3.

  • Page 14: Compressor Electrical

    COMPRESSOR ELECTRICAL 4-2-3 PTC-Applied Circuit Diagram 4-1 COMPRESSOR •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 15: Olp (Overload Protector)

    4-3 OLP (OVERLOAD PROTECTOR) 4-4 TO REMOVE THE COVER PTC 4-3-1 Definition of OLP 1) Remove the back cover of the mechanical area. (1) OLP (OVERLOAD PROTECTOR) is attached to the compressor and protects the motor by opening the circuit to the motor if the temperature rises activating the bimetal spring in the OLP.

  • Page 16: Circuit Diagram

    5. CIRCUIT DIAGRAM PCB main, 6871JB1375 Air Damper Motor - 15 -...
  • Page 17 PCB main, 6871JK1011 LG Electronics CIRCUIT DIAGRAM PWB(PCB) ASSEMBLY,DISPLAY WH/RD YL/BK F-FAN C-FAN WH GY WH/RD YL/BK CON4 CON6 CON6 CON5 CON7 F-SENSOR DISPENSER BASIC R-SENSOR DEF-SENSOR DEF-SENSOR DEF-SENSOR PWB(PCB) ASSEMBLY, MAIN F-DOOR S/W STEPPING MOTOR POWER GN/YL SUPPLY CORD CON1 CON2 CON3...

  • Page 18: Troubleshooting

    6. TROUBLESHOOTING 6-1 COMPRESSOR AND ELECTRIC COMPONENTS (Rated voltage Remove PTC-Starter Power Source. ±10%)? from compressor and measure voltage between Terminal C of compressor and terminal 5 or 6 of PTC. OLP disconnected? No voltage. Replace OLP. Check connection condition. Reconnect.

  • Page 19: Ptc And Olp

    6-2 PTC AND OLP Separate PTC-Starter Observation value is Normal operation of PTC OK 115V/60Hz : 6.8 ±30% from Compressor and compressor is impossible at room temperature or poor. measure resistance between No. 5 and 6 of PTC-Starter with a Tester.

  • Page 20: 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 21: Service Diagnosis Chart

    6-4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY No Cooling. •Is the power cord unplugged from the outlet? Plug into the outlet. • • Set the switch to ON. •Check if the power switch is set to OFF. •Check if the fuse of the power switch is open.

  • Page 22: 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 PARTIAL leak. ¥ compartment and refrigerant is heard and frost ambient...
  • Page 23 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 24: Icemaker Operating Principles And Repair

    ICEMAKER OPERATING PRINCIPLES AND REPAIR 7-1 OPERATION PRINCIPLE 7-1-1 Operation Principle of Icemaker Power On Start Position • Adjusts Ejector to Start Position with power on. Icemaking • Waits until water becomes cold after starting the Mode Icemaking operation. Harvest •...

  • Page 25: Ice Maker Functions

    7-2 ICE MAKER FUNCTIONS 7-2-1 Ice Making Mode 1. Icemaking refers to the freezing of supplied water in the ice trays. Complete freezing is assured by measuring the temperature of the Tray with icemaking SENSOR. 2. Icemaking starts after completion of the water fill operation. 3.

  • Page 26: Defect Diagnosis Function

    7-2-5 Function TEST 1. This is a compulsory operation for test, service, cleaning, etc. It is operated by pressing and holding the Cube Size button for 3 seconds. 2. The test works only in the Icemaking Mode. It cannot be entered from the Harvest or Fill mode. (If there is an ERROR, it can only be checked in the TEST mode.) 3.

  • Page 27: Description Of Function & Circuit Of Micom

    8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM 8-1 FUNCTION 8-1-1 Function 1. When the appliance is plugged in, it defaults 37 ° F, for the refrigerator and 0°F for the freezer. You can adjust the refrigerator and the freezer control temperature by pressing the ADJUST button. 2.
  • Page 28 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 ½ second. These tones repeat every 30 seconds.
  • Page 29 8-1-9 Electrical Parts Sequence of Operation Electrical parts such as compressor , defrosting heater, freezer fan, etc. are turned on 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 completed.
  • Page 30 8-1-10 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 defect is repaired the defect code is removed and refrigerator returns to normal operation (RESET) 4.
  • Page 31 8-1-11 TEST Mode 1. The test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of an error. (See chart below) 2. The test mode is operated by pressing two buttons on the display panel. 3.

  • Page 32: Pcb Function

    8-2 PCB FUNCTION 8-2-1 Power Circuit C E 3 1 KJ V A1 C E 4 C E 5 The secondary part of the TRANSFORMER is composed of the power supply for the display, the BLDC FAN Motor drive (15.5 V dc), the relay drive (12 Vdc) and the MICOM and IC (5 Vdc). The voltage for each part is as follows: PART VA 1...

  • Page 33: Resistance Specification Of Sensor

    8-3 RESISTANCE SPECIFICATION OF SENSORS RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR & TEMPERATURE 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°...

  • Page 34: Troubleshooting

    - 33 -...
  • Page 35 - 34 -...

  • Page 36: Main Pwb Assembly And Parts List

    8-5 MAIN PWB ASSEMB LY AND PARTS LIST 8-5-1 Main PWB Assembly 6871JB1375 TEST SWITCH (SW1) - 35 -...
  • Page 37 Main PWB Assembly 6871JK1011 - 36 -...

  • Page 38: Pwb Diagram

    8-6 PWB DIAGRAM TRANS D3SBA60 470nF 8-6-1 PWB Main Assembly 56KJ 275VAC 47uF +15.5V /630V 560KJ /450V 1.8KJ 1/2W RL1* FR107 9.1KF 6871JB1375 32mH/0.5A FR107 103/100V 100J FUSE1 680uF 250V/2A 680uF 6.8K /25V 47uF /35V RL2* /50V 2.4KF KIA431 IC3-1 5mH/4A 680J 470nF...
  • Page 39 330J CON4 KTB1151 FR107 4.7KJ 1.5KJ 1/2W 3.9KJ CE11 CC16* 220uF FR107 (PDO/PWM) KTC3198 /25V 10KJ F-FAN 4.7KJ (INT4) CC17* 330J KTB1151 FR107 4.7KJ 1.5KJ 1/2W 3.9KJ CE12 CC19* 220uF FR107 (PPG) /25V KTC3198 R42* 10KJ C-FAN 4.7KJ (INT1) CC20* RJ1* CON5 R23*...
  • Page 40 8-6 PWB DIAGRAM 8-6-1 PWB Main Assembly 6871JK1011 BD 1 BD 1 TR ANS TR ANS D3 SBA6 0 D3 SBA6 0 RL 2 RL 2 CM 3 CM 3 56K J 56K J CM 2 CM 2 47u F 47u F +15 .5V +15 .5V...
  • Page 41 R 3 1 3 3 0 J C O N 4 K TB 1 1 5 1 F R 1 0 7 R 3 3 1 mH R 3 2 4 . 7 K J 1 . 5 K J R 3 4 1 / 2 W 3 .

  • Page 42: Exploded View And Replacement Part List

    #EV# 9. EXPLODED VIEW CASE PARTS CAUTION: Use the part number to order part, not the position number. 103B 281A 402A 271C 282E 103A 410A 402A 409D 501F 503G 503F 271A 903D 503D 610A 282F 503C 503E 501A 409B 120B 619B 411A 125D...
  • Page 43 #EV# FREEZER PARTS CAUTION: Use the part number to order part, not the position number. 136B 131A 145C 248E 248F 145F 136A - 42 -...
  • Page 44 #EV# REFRIGERATOR PARTS CAUTION: Use the part number to order part, not the position number. 147C 147B 147A 141D 141A 149C 149E 141B 141A 141E 141C 141B 143F 142D 140B 141C 142E 128A 103E 170A 128B 167B 103E 154A 103E 168A 151C 103E...
  • Page 45 #EV# DOOR PARTS CAUTION: Use the part number to order part, not the position number. 241E 230A 230B 104E 241F 231A 233D 233D 233A 231B 233B 233C 212G 241C 233G 233H 212F 212F 237A 241C 237A 241C 212A 212A 700C 700C 233F 233E...
  • Page 46 #EV# ICE MAKER PARTS CAUTION: Use the part number to order part, not the position number. 602A 600C 600A 622B 622A 618A 627A 616E 623C 619A 262D - 45 -...
  • Page 47 No. MFL30009501 JULIO, 2008 Rev.2...

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