Kenmore 795 71303 902 Page 29

Workshop Manuals

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8. CIRCUIT OF MICOM8. CIRCUIT OF MICOM

8-1 FUNCTION8-1 FUNCTION

8-1-1 Function8-1-1 Function

8-1-3 Control of freezer fan 8-1-3 Control of freezer fan

motormotor

8-1-4 ULTRA ICE8-1-4 ULTRA ICE

8-1-5. Refrigerator Lamp Auto Off8-1-5. Refrigerator Lamp Auto Off

1. T1. T

o protect the risk o protect the risk

of lamp heat, when of lamp heat, when

Refrigerator door opens for Refrigerator door opens for

7 min., refrigerator lamp 7 min., refrigerator lamp

is auto off.is auto off.

1. Initially set the Refrigerator control at 37ºF (3ºC) and the 1. Initially set the Refrigerator control at 37ºF (3ºC) and the

Freezer control at 0ºF(-18ºC)Freezer control at 0ºF(-18ºC)

ou can adjust ou can adjust

the Refrigerator and the the Refrigerator and the

Freezer control temperature by Freezer control temperature by

pressing the Colder ADJUST button.pressing the Colder ADJUST button.

2. When the power is restored after a 2. When the power is restored after a

power failure, it is automatically set to last setting selected.power failure, it is automatically set to last setting selected.

1. Freezer fan motor runs at either r1. Freezer fan motor runs at either r

egular or high speed (2,400 or 2,700 egular or high speed (2,400 or 2,700

rpm.)rpm.)

2. High RPM is used 2. High RPM is used

when electricity is first on, for ULTRA ICE, and when refrigerator is overloaded.when electricity is first on, for ULTRA ICE, and when refrigerator is overloaded.

Standard RPM is used for normal usage.Standard RPM is used for normal usage.

3. The fan motor is stopped when refrigerator door is 3. The fan motor is stopped when refrigerator door is

openedopened

8-1-2 How to Toggle the Display between °F & °C8-1-2 How to Toggle the Display between °F & °C

1. The display temperature mode can be changed from 1. The display temperature mode can be changed from

°F to °C or °C to °F by °F to °C or °C to °F by

pressing and holding the COLDER FREEZERpressing and holding the COLDER FREEZER

TEMP and the COLDER REFRIGERATOR TTEMP and the COLDER REFRIGERATOR T

EMP keys at the same EMP keys at the same

time for over one second.time for over one second.

2. The initial setting is °F2. The initial setting is °F

. Whenever the mode is changed, the . Whenever the mode is changed, the

appropriate LED is it.appropriate LED is it.

1. The purpose of this function is 1. The purpose of this function is

to intensify the cooling speed to intensify the cooling speed

of freezer and to increase the amount of of freezer and to increase the amount of

ice.ice.

2. Whenever selection switch is pressed, selection/release, the 2. Whenever selection switch is pressed, selection/release, the

LED will turn ON LED will turn ON

or OFFor OFF

3. If there is a power 3. If there is a power

outage and the refrigerator is powered on outage and the refrigerator is powered on

again, ULTRA again, ULTRA

ICE will be canceled.ICE will be canceled.

4. T4. T

o activate this o activate this

function you need function you need

to press the to press the

ULTRA ULTRA

ICEICE

key and the LED will turn ON. This function willkey and the LED will turn ON. This function will

remain activated for 24 hrs. The first three hours the compressor and remain activated for 24 hrs. The first three hours the compressor and

Freezer Fan will be Freezer Fan will be

ON. The next 21hoursON. The next 21hours

the freezer will be controlled the freezer will be controlled

at the lowest temperature. After 24 hours or if the ULTRA ICE key is pressed again,at the lowest temperature. After 24 hours or if the ULTRA ICE key is pressed again,

the freezer will return to its previous the freezer will return to its previous

temperature.temperature.

5. During the first 3 hours:5. During the first 3 hours:

(1) Compressor and freezer fan (1) Compressor and freezer fan

(HIGH RPM) run continuously.(HIGH RPM) run continuously.

(2) If a defrost cycle begins during (2) If a defrost cycle begins during

the first 90 minutes of ULTRA ICE , the ULTRA the first 90 minutes of ULTRA ICE , the ULTRA

ICE cycle will ICE cycle will

complete its cyclecomplete its cycle

after defrosting has ended. after defrosting has ended.

If the defrost cycle If the defrost cycle

begins when Ubegins when U

TRA ICE has run TRA ICE has run

for more than 90 for more than 90

minutes,ULminutes,UL

TRATRA

ICE will run for two ICE will run for two

hours after the defrost is completed.hours after the defrost is completed.

(3) If ULTRA (3) If ULTRA

ICE is pressed during defrost, ULTRA ICE is on, this function will start seven ICE is pressed during defrost, ULTRA ICE is on, this function will start seven

minutes after defrost isminutes after defrost is

completed and it shall operate for completed and it shall operate for

three hours.three hours.

(4) If ULTRA ICE is selected within (4) If ULTRA ICE is selected within

seven minutes after compressor has seven minutes after compressor has

stopped, the compressor (compressorstopped, the compressor (compressor

delays seven minutes) will start after the delays seven minutes) will start after the

balance of the delay time.balance of the delay time.

(5) The fan motor in (5) The fan motor in

the freezer compartment rotates at high the freezer compartment rotates at high

speed during ULTRA ICE.speed during ULTRA ICE.

6. For the rest of 21 hours, 6. For the rest of 21 hours,

the freezer will be controlled at the freezer will be controlled at

the lowest temperature.the lowest temperature.

*Note: T*Note: T

o ERROR CODE o ERROR CODE

on display panel refer on display panel refer

to page 29.to page 29.

Contents Summary of Kenmore 795 71303 902

Page 1BOTTO BOT TOMM FRE FREEZE EZER R REF REFRIG RIGERA ERATO TOR R REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE PRODUCT READ THE SAFETY PRECAUTIONS IN THIS MANUAL. MODELS: 795.71303.902 795.71306.902 795.71302.902 795.71309.902 795.71304.902 MFL62078232 Sears Brands Management Management Cor
Page 2ECN (Engineering Change Number) Rev.01 Valve inclined in order to improve house connection Rev.02 Compressor change from MQ53LAUM (PTC) to MQ53LAUM (e-PTC)
Page 3CONTENTS SAFETY PRECAUTIONS ............. ........................... ............................. ............................. ............................. ............................. ............................ ................... ..... 3 1. SPECIFICATIONS ............. .....................
Page 4SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator refrigerator.. 1. Check the refrigerator for current leakage. 7. Before tilting the refrigerator refrigerator,, remove all materials from on or in the refrigerator. 2. To To prevent electric e lectric shock,
Page 51. SPECIFICATIONS 1-1. DISCONNECT POWER CORD BEFORE SERVICING IMPORTANT: Reconnect all grounding devices. All parts of this appliance appliance capable of conducting electrical electrical current are grounded. If grounding wires, screws, straps, clips, nuts or washers used to complete a path to grou
Page 61-7. REPLACEMENT PARTS PERFORMA NCE DATA PERFORMANCE (NORMAL OPERATING CONDITIONS) Relay........................................................... EBG42993601 Overload.................... Overload......... ...................... ..................... ..................... ............. 6750C-0005P
Page 7DIMENSIONS Description 7130* Depth w/ Handles A 34 5 8 1 Depth w/o Handles B 32 8 Depth w/o Door C 28 ¼ Depth (Total with Door Open) D 45 ½ Height to Top of Case E 67 11 16 Height to Top of Door Hinge F 69 1 16 Width G 32 ¾ Width (door open 90 deg. w/o handle) H 36 ¼ Width (door open 90 deg. w/ hand
Page 82. PARTS IDENTIFICATION A B K C L D E F M G N H O I J 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
Page 93. 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 forw
Page 103-4 CONTROL CON TROL BOX-REFRIGERA BOX-REFR IGERATOR TOR 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 r
Page 113-6 DOOR DISASSEMBLY 3-6-1 REMOVE REFRIGERATOR DOOR 3-6-2 REPLACE REFRIGERATOR DOOR IMPORTANT: Before you begin, turn the refrigerator OFF and IMPORTANT: Before Right Door Unplug it. Remove food and any bins from doors. Lower the door onto the middle hinge pin (7). Left Door Make sure the door is al
Page 123-6-3 PULL OUT DRAWER (a) HOW TO REMOVE PULL OUT DRAWER IMPORTANT: To avoid possible injury, product or CAUTION: When removing drawer door, do not hold it property damage, you will need two people to perform by the handle. Door could fall down and you may be the following instructions. injured grasp
Page 13(b) HOW TO INSTALL PULL OUT DRAWER IMPORTANT: To avoid possible injury, product or • Align the top holes of the rail cover with the top holes of property damage, you will need two people to perform the door supports to assemble the r ail cover. the following instructions. • With both hands, hold the
Page 143-6-4 HOW TO REMOVE DOOR HANDLES NOTE: Handle appearance may vary from illustrations 2. Removi Removing ng Freezer Drawer Handle on this page. • Loosen the set screws located on the lower side of the handle with the 3/32” Allen 1. Removi Removing ng Refrigerator Refrigerator Handle wrench and remove
Page 153-7 LEVELING AND DOOR ALIGNMENT (a) LEVELING (b) DOOR ALIGNMENT Your refrigerator has two front leveling screws one on If the space between your doors is uneven, follow the the right and one on the left. If your refrigerator seems instructions below to align the doors: unsteady or you want the doors
Page 164. 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 L1
Page 174-3 OLP (OVERLOAD PROTECTOR) 4-3-1 Definition of OLP (1) OLP (OVERLOAD PROTECTOR) is attached to the Compressor and protects the Motor by opening the circuit to the Motor if the temperature rises and activating activat ing the bimetal bimet al spring in the OLP OL P. (2) When high current flows to t
Page 185. CIRCUIT DIAGRAM - 16 -
Page 196. TROUBLESHOOTING 6-1. COMPRESSOR AND ELECTRIC COMPONENTS (Rated voltage YES Remove PTC-Starter 1 Power Source. from compressor and 2 measure voltage between Termina Terminall C of compressor and terminal 5 or 6 of PTC. YES No voltage. Reconnect. 5 NO Check connection condition. Replace OLP. Applie
Page 206-2. PTC AND OLP Normal operation of Separate PTC-Starter Observation value is compressor is impossible from Compressor and 115V/60Hz : 6.8 ? ±20% or poor. measure resistance between No. 5 and 6 of PTC-Starter with a Tester. (Figure 1) The resistance value Replace PTC- is 0 ? (short) or Starter. (op
Page 216-3 OTHER ELECTRICAL COMPONENTS • Not cooling at all Compressor Check for open short or doesn't run. Cause incorrect resistance readings in the following components a. Starting devices Short, open, or broken. Poor contact b. OLP or shorted. c. Compressor coil Coil open or shorted. d. Wirin Wiringg h
Page 226-4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY No Cooling. • • Plug into the outlet. • Check if the t he power switch swi tch is set to t o OFF. OFF. • Set the switch to ON. • Check if the fuse of the power switch is shorted. • Replace the fuse. • Measure the voltage of the power
Page 236-5 REFRIGERATION CYCLE • Troubleshooting Chart - 21 -
Page 246-5-1 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 Partial None Pattern? Equalization Equalization Test Test Very Fast Fa st Very Slow Very Slow Fast Very Fast F
Page 257. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 7-1 OPERATION OPERATION PRINCIPLE PRI NCIPLE 7-1-1 Operation Principle of Icemaker Power Input Initial Control • Adjusts Ejector to Start Position with Position with power on. Icemaking Control • Waits until water in the TRAY is frozen after Icema
Page 267-2 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,
Page 27MAXIMUM TILTING POINT Bank is not full ON HALL Sensor OFF Output Signals Bank is full ON HALL Sensor Output Signals OFF Ice checking AXIS LEVEL 30° Ice checking AXIS -0° -10° -8°-0° -8° -32° -41° -53° -58° -80° -160° -170° Lock Lock Icemaking Ice ejection original point A B C 2±1 sec Horizontal 9±3
Page 287-2-4 Test Icemaker Mode Test function starts when test switch is press ed for more than 3 seconds. 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. Whe
Page 298. CIRCUIT OF MICOM 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. When the power is restored after a power failure,
Page 308-1-6 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 sec onds. These tones repeat every 30 seconds. 3. The alarm is cancelle
Page 318-1-10 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 t
Page 328-1-11 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. 2. The test mode is operated by pressing two buttons on the Display panel. 3. While in the test mode, the function control button is not recognized
Page 338-2 PCB FUNCTION CON 7 CON 6 CON 5 CON 4 CON 8 CON 9 CON 10 CON 1 CON 3 CON 2 - 31 -
Page 348-2-1 Power Circuit Fig. 1 8-2-2. Load and Door Light Circuit (HV) 1. Load Drive Condition Check To measure outputs of the control board, check voltages between the pins for the following components: (Refer to Fig. 1). Pin Pin Output Circuit Number Number Voltage Connector 1 Compressor Con 1 Pin 1 C
Page 35Fig. 2 2. Door Monitor Circuit Ci rcuit (LV) Refrigerator Pin Number Pin Number Voltage F Door Close Con 7 Pin 4 Con 7 Pin 5 5 Volts F Door Open Con 7 Pin 4 Con 7 Pin 5 0 Volts R Door Close Con 8 Pin 3 Con 8 Pin 4 5 Volts R Door Open Con 8 Pin 3 Con 8 Pin 4 0 Volts Connector 8 Pin 4 3 2 1 R-Door S/W
Page 36To 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 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 D- Sensor Con 7 Pin 6
Page 378-3 RESISTANCE SPECIFICATION OF SENSOR TEMPERA TEMPE RATURE TURE DETECTE DETECTED D 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? +5°C 6.2 K? 24.1 K? +10°
Page 38
Page 39#EV# FREEZER PARTS CAUTION: Use the part number to order part, not the position number. number. 136B 131A 145C 248E 248F 145F 136A
Page 40#EV# REFRIGERATOR PARTS CAUTION: Use the part number to order part, not the position number. number. 147C 147A 143F 141B 143F 141B 141C 248G 141C 248G 143F 141B 143F 141B 141C 248G 141C 248G
Page 41#EV# REFRIGERA REFRIGE RATOR TOR PARTS (P (PANTRY) ANTRY) Caution: Use the part number to order part, not the position number. 167B 154A 145J 151B 145G 151A 145H 154B 128B 170A 128A
Page 42#EV# DOOR PARTS CAUTION: Use the part number to order part, not the position number. number. 230B 230A 104E 233D 233A 231A 231B 233B 233C 241F 212G 241A 248L 241C 241B 233G 233H 248M 212K 241C 212K 241H 248L 248M 248L 241C 244A 241H 233F 244A 212J 233E 212J 248M 241H 241C 248M 248L 241C 248L 212K 28
Page 43#EV# WATER & ICEMAKER IC EMAKER PARTS Caution: Use the part number to order part, not the position number. 600A 622B 627A 616E 619C S31
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