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1-7 Stepping motor Circuit.

STEPPING

R2-SENSOR

MOTOR

BK 10

GY 8

GY 7

CON7

R1-SENSOR

(DAMPER)

HEATER,SHEET

R-DOOR DETECTION

SWITCH

WH 6

WH 5

PK(BO)

BN 1

PR 2

1-8 Fan Motor Driving Circuit.

Eva-FAN

Condenser-FAN

MOTOR(BLDC)

F-SENSOR

DEFROST SENSOR

SWITCH

F-DOOR DETECTION

MOTOR(BLDC)

CON6

1. This circuit changes the speed of the fan motor or stop,
varying the DC voltage as shown in the next table.

2. The circuit stops any fan motor by cutting off power when
lock-up condition is detected.

VOLTAGE

LOOPBACK

CON6 PIN12

CON6 PIN10

MOTOR ON

MOTOR OFF

CON6 PIN7

CON6 PIN9

MOTOR ON

MOTOR OFF

CON6 PIN8

CONDENSER MOTOR FAN

12~14V

2~3V

2V or less

CON6 PIN11

EVAPORATOR MOTOR FAN

8~16V

2~3V

2V or less

ITEM

CHECKPOINTS

REMARK

GND

1-9 Temperature compensation and temperature compensation circuit.

1. Temperature compensation in freezer and refrigerator.

Содержание 795.58812.900

Страница 1: ...s 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 58812 900 795 58813 900 795 58814 900 795 58816 900 795 58819 900 R SXS REFRIGERATOR ...

Страница 2: ...W TO INSTALL REFRIGERATOR 4 MICOM FUNCTION 5 CIRCUIT 6 EXPLANATION FOR MICOM CIRCUIT 7 ICEMAKER AND DISPENSER WORKING PRINCIPLES AND REPAIR 8 TROUBLE DIAGNOSIS 9 HOW TO DISASSEMBLE AND ASSEMBLE 10 EXPLODED VIEW AND 795 58812 58813 58814 58816 58819 900 3 4 5 6 10 19 20 26 31 68 73 80 2 ...

Страница 3: ...gaged Remove dust and foreign materials from the housing and connecting parts 8 Do not fray damage run over kink bend pull out or twist the power cord 9 Please check for evidence of moisture intrusion in the electrical components Replace the parts or mask with insulation tape if moisture intrusion was confirmed 10 Do not touch the icemaker with hands or tools to confirm the operation of geared mot...

Страница 4: ...ume 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 7 A Maximum Current Leakage 0 5mA Maximum Ground Path Resistance 0 1 Ohms Energy Consumption 27 cu ft 590kWh yr Energy Star 1 4 NO LOAD PERFORMANCE Control Position MID MID And ambient of 70 F 90 F F...

Страница 5: ...Water Filter Lamp Door Rack Lamp Shelf steel Drawer Lower Cover Shelf Snack Drawer Automatic Ice maker Door Rack Door Rack Vegetable Drawer Shelf Door Rack Vegetable Drawer Freezer Refrigerator Water Ice output Dispenser push switch Dispenser lamp Bottom ceiling of function display board ...

Страница 6: ... clockwise 1 3 HOW TO INSTALL THE REFRIGERATOR Adjust the level when the refrigerator door is lower than the freezer door during the use of the refrigerator 1 Using the narrow side of the tool for adjustment turn the adjustment hinge pin 2 clockwise or counterclockwise to level the refrigerator and freezer door 2 After setting the level of the door turn the keeper nut Counterclockwise to tighten D...

Страница 7: ...h the sticker Insert the upper part of the filter after aligning with the guideline marked on the control box and fasten it by turning it clockwise by 90 degrees Note Check that the guideline and the fastening indication line are aligned 2 Replacement of water filter While holding the lower part of thefilter turn it counterclockwise by 90 degrees and pull it down Note Check that the guideline and ...

Страница 8: ...er for two seconds as shown below 2 The bell rings ding dong the ice tray rotates and water comes out the icemaker water tube 3 The water is supplied into the tray two or three times The amount is small each time Put a container under the ice tray and press test switch 4 When the ice tray rotates the water in it will spill Collect the spilled water and discard it 5 When ice tray has finished rotat...

Страница 9: ...s when the refrigerator is deivered 2 The amount of water supplied depends on the setting time and water pressure city water pressure 3 If the ice cubes are too small increase the water supplying time This happens when too little water is supplied into the ice tray 4 If the ice cubes stick together decrease the water supplying time This happens when too much water is supplied into the ice tray Cau...

Страница 10: ...he FRZ TEMP And ULTRA ICE buttons simultaneously for 5 seconds until the Ding sounds Use both buttons for this to work When Display off Mode is activated the display remains OFF unless a door is opened or a button is pressed The display will return to the OFF position after 20 seconds inactivity To remove the display from Display off Mode press and hold the FREEZER and ULTRA ICE buttons simultaneo...

Страница 11: ...ontrol feature taht remains active in the locked state The buzzer sound other control buttons the dispenser are deactivated 4 To release from the locked state press and hold the LOCK button again for 3 seconds 1 There is a replacement indicator light for the filter cartridge on the dispenser 2 Water filter needs replacement at six months of water filter usage 3 Filter Reset icon turn on to tell yo...

Страница 12: ...pressed selection release the LED will turn ON or OFF 3 If there is a power outage and the refrigerator is powered on again Ultra Ice will be canceled 4 To activate this function press the Ultra Ice key and the LED will turn ON This function will remain activated for 24 hrs The first three hours the compressor and Freezer Fan will be ON The next 21 hours the freezer will be controlled at the lowes...

Страница 13: ...in the freezing room MICOM immediately stops the fan motor by determining that the BLDC fan motor is locked or fails if there would position signal for more than 115 seconds at the BLDC motor Then it displays failure refer to failure diagnosis function table at the display part of refrigerator the BLDC motor doesn t operate more If you want to operate the BLDC motor turn off and on power resource ...

Страница 14: ...orts cut 2 11 Defrost function 2 10 Ringing of compulsory operation compulsory frost removal buzzer 2 12 Refrigerator lamp automatically off 14 1 If pressing the test button in the Main PCB a beep will sound 2 In selecting compulsory operation alarm sound is repeated and completed in the cycle of On for 2 10 second and Off for 1 8 10 second three times 3 On selecting compulsory frost removal alarm...

Страница 15: ...in products such as compressor frost removal heater freezing room fan cooling fan and step motor damper are operated sequentially as follows to prevent noise and part damage due to simultaneous operation of several parts in applying initial power and completing test ...

Страница 16: ...L DISPLAY NOTE 1 ICE MAKER UNIT NOTE 1 NORMAL DISPLAY NORMAL DISPLAY NOTE 1 WATER TEMPERATURE SENSOR CONDENSER BLDC MOTOR OF FAN MOTOR AMBIENT SENSOR SHORT OPENCIRCUIT ICE MAKER SENSOR SHORT OPEN CIRCUIT MOTOR DRIVING CIRCUIT WIRE SHORT CIRCUIT FAULTY WATER TANK SENSOR MOTOR OR HALL IC LEAD FAULTY ICE MAKER UNIT SHORT OPEN CIRCUIT OFF BLDC MOTOR NORMAL OPERATION MOTOR DEFECTIVE FAN BLADE OBSTRUCTE...

Страница 17: ...s reset to the normal status 3 In finishing test mode always pull the power cord out and then plug in it again for the normal state Always wait at least 3 minutes before restarting a compressor to allow the pressures to equalize and to avoid damage 4 If nonconforming contents such as sensor failure are found during performance of test mode release the test mode and display the failure code NOTE Te...

Страница 18: ...r on the dispenser defaults to CUBED ICE 3 When CUBE ICE is selected the geared motor rotates and the Solenoid Cube is activated so CUBE ICE is dispensed 4 When CHRUSHED ICE is selected the geared motor rotates and the Solenoid Cube is deactivated so CRUSHED ICE is dispensed 7 Water dispenser function 1 Select WATER to dispenser water 2 The water line is a direct connection to the household water ...

Страница 19: ...COMPRESSOR EARTH PART ICE WATER VALVES PILOT VALVE S W PART PCB ASSEMBLY CON101 DISPLAY D C HEATER SHEET DUCT DOOR 6 5 BK 4 7 YL 3 10 RD WH 9 BL 8 BK WH PR WH BO 2 1 RD BN OPTIONAL R1 SENSOR DAMPER AMBIENT SENSOR WATER TANK SENSOR HEATER SHEET R DOOR DETECTION SWITCH WH 6 CON3 WH 5 YL 11 3 PK BO 9 SB 10 4 BO BL N RD F LAMP BN 1 7 PR 5 4 RD CON9 6 6 PK 3 BN BK WH RD WH PR BL YL SB 4 3 1 2 5 2 1 PK ...

Страница 20: ...6 EXPLANATION FOR MICOM CIRCUIT 20 1 1 Power Circuit 1 Explanation for PWB circuit ...

Страница 21: ... 21 1 2 Main PCB Top View TAB2 TAB1 CON1 CON2 CON3 CON4 CON9 CON5 CON6 CON8 CON7 ...

Страница 22: ... Dispenser Ice Valve Pilot Valve Water Valve Solenoid Cube Geared Motor Water Tank Heater Dispenser Lamp Refrigerator Lamp Defrost Heater Compressor Type of Load 22 4 3 6 5 7 BK BN BL CON2 RD BL N 2 PR 1 BL RD 9 7 8 CON4 5 6 WH YL 1 2 3 4 SWITCH R DOOR PCB ASSEMBLY MAIN BL N C D BO PK BO A F DOOR SWITCH RD RD B BL N BL N BL N BL N BL N LEVER S W DISPENSER DISPENSER LAMP WH N WATER TANK 72 C DEF HE...

Страница 23: ...its involving the freezer and refrigerator sensors control the temperature in both the freezer and the refrigerator The icemaker sensor defects when ice is made The defrost sensor determine both the need for defrosting and the efficiency of the defrost operation See the table below for voltages and checkpoints WIRE VOLTAGE GND NORMAL SHORT OPEN COLOR A CON7 PIN3 CON7 PIN4 0 5V 4 5V 0V 5V BO 2 DEFR...

Страница 24: ...7 4 5 1 2 3 GY 1 This circuit changes the speed of the fan motor or stop varying the DC voltage as shown in the next table 2 The circuit stops any fan motor by cutting off power when lock up condition is detected VOLTAGE LOOPBACK CON6 PIN12 CON6 PIN10 MOTOR ON MOTOR OFF CON6 PIN7 CON6 PIN9 MOTOR ON MOTOR OFF B CON6 PIN8 CONDENSER MOTOR FAN 12 14V 2 3V 2V or less 5V A CON6 PIN11 EVAPORATOR MOTOR FA...

Страница 25: ... º 25 Temperature compensation table by adjustment value difference value against current tempreature Ex If you change compensation resistance at the refrigerator RCR1 from 10kΩ current resistance to 18kΩ modified resistance the temperature at the refrigerator will increase by 1 C 1 8 F ...

Страница 26: ... initial ice ejection water supply control steps 1 2 Dispenser Working Principles 1 This function is available in models where water and ice are available without opening freezer compartment door 2 Crushed Ice is automatically selected when power is initially applied or reapplied after power cut 3 When dispenser selection switch is continuously pressed light is on in the following sequence Water C...

Страница 27: ... supplied to water valve If water supply signal is applied to ice valve during water supply water shall be supplied to both water and ice valves 2 3 Icemaking Control Function 1 Icemaking control is carried out from the completion of water supply to the completion of ice making in the cube mold Icemaking sensor detects the temperatures of cube mold and completes ice making Ice making sensor is fix...

Страница 28: ...ozen the water might be When the ejection is completed the ice maker will refill the mold with water Consequently problems related to filling ejecting and returning to the horizontal position can be checked using the test switch When this test is performed the buzzer will sound and water will fill the mold Check the icemaker for repair if the buzzer does not sound 4 When water supply is completed ...

Страница 29: ...ting Troubleshooting it is possible to confirm by pressing freezer and refrigerator temperature control buttons for more than 1 second Icemaker is normal if all LED s are on Refer to trouble diagnosis function in MICOM function ...

Страница 30: ... 30 models 3 Icemaker Circuit ...

Страница 31: ... 8 TROUBLE DIAGNOSIS 31 ...

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Страница 57: ...3 Sealed System Heavy Repair 57 Summary of Heavy Repair ...

Страница 58: ... 58 Precautions during heavy repair ...

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Страница 68: ... 9 HOW TO DISASSEMBLY AND ASSEMBLE 68 Remove clip Pull out tube while pressing collets 1 and disassemble it 2 ...

Страница 69: ... 69 ...

Страница 70: ... 70 5 WATER VALVE DISASSEMBLY METHOD ...

Страница 71: ...2 Remove the Display Frame moving out with both hands in one side and make the same process in the other side and pulling it forward like shows the picture 71 ...

Страница 72: ... 72 19 7 13 12 4 1 2 3 22 18 10 15 9 8 17 14 16 ...

Страница 73: ...FREEZER DOOR EXPLODED VIEW 241G 241G 203A 201A 200A 241F 243A 241G EV 212J 244A 73 ...

Страница 74: ...REFRIGERATOR DOOR EXPLODED VIEW 243B 212G EV 233A 231A 230A 212J 74 241H 241D 241B 241C 241A 241H 241H 244A ...

Страница 75: ...FREEZER COMPARTMENT EXPLODED VIEW 418A 301A 401A 271B 281C 271A 106A 319B 610E 103C 281G 332B 330B 405G 329A 332A 405A 404A 405D 409A 158C 128E 136A 149A 149A 149A 281A 406A 128F EV 903E 316B 75 ...

Страница 76: ...154A 151B REFRIGERATOR COMPARTMENT EXPLODED VIEW 611A 621C 611B 611E 271B 271C 106A 610E 281H 120B 120A 158A 2 28 81 1D D 406A 281B 604H 140A 170A 141A 128H 128G 140A 140B 412C 621D 409A EV 128J 128K 128A 128B 903D 76 ...

Страница 77: ...ICE WATER PARTS EXPLODED VIEW 614A 110B 606A 131A 412A 625A 131C 149D 128L 149E 412B 619A 616E 622B 616D 616G 616F 627A 627D 621B 612A 612B 612C 125A 600B 602A 406D 303B 610A 607A 600A EV 77 ...

Страница 78: ...ENT EXPLODED VIEW 328A 307A 419B 314A 312A 419A 318A 317A 305C 305B 304A 323B 314A 105A 305C 305B 315A 319A 319E 319C 405C 404B 405F 329C 501A 501K 411A 501F 103B 103A 316A EV S38 S15 105F S15 412D 78 310A 309B 412D 410G ...

Страница 79: ...DISPENSER PARTS EXPLODED VIEW EV 278A 161C S18 409B 113F 278G 79 405H 282G 113E 617A 276A 276B 501B 280A 279B 279A 281F ...

Страница 80: ...7JB2039G Harness Assembly 170A 3390JJ1236A Tray Snack 412C 6620JB1001C Socket Lamp 200A ADC30116540 Door Assembly Freezer 412D EAD37941001 Harness Assembly 201A ADC30170441 Door Assembly Semi Freezer 418A 5300JB1102D Heater Sheath 203A 4987JJ1010A Gasket Assembly Door 419A 5200JA1019A Pipe Joint 212G 4140JD1031A Name Plate 419B MGE58810301 Pipe Joint 212J 4620JJ3007E Stopper Handle 501A 6871JB1410...

Страница 81: ...7JB2039G Harness Assembly 170A 3390JJ1236A Tray Snack 412C 6620JB1001C Socket Lamp 200A ADC30116539 Door Assembly Freezer 412D EAD37941001 Harness Assembly 201A ADC30170440 Door Assembly Semi Freezer 418A 5300JB1102D Heater Sheath 203A 4987JJ1010E Gasket Assembly Door 419A 5200JA1019A Pipe Joint 212G 4140JD1031A Name Plate 419B MGE58810301 Pipe Joint 212J 4620JJ3007E Stopper Handle 501A 6871JB1410...

Страница 82: ...77JB2039G Harness Assembly 170A 3391JJ1040D Tray Assembly Snack 412C 6620JB1001C Socket Lamp 200A ADC30116543 Door Assembly Freezer 412D EAD37941001 Harness Assembly 201A ADC30170444 Door Assembly Semi Freezer 418A 5300JB1102D Heater Sheath 203A 4987JJ1010G Gasket Assembly Door 419A 5200JA1019A Pipe Joint 212G 4140JD1031A Name Plate 419B MGE58810301 Pipe Joint 212J 4620JJ3007E Stopper Handle 501A ...

Страница 83: ...ss Assembly 170A 3390JJ1236A Tray Snack 412C 6620JB1001C Socket Lamp 200A ADC30116542 Door Assembly Freezer 412D EAD37941001 Harness Assembly 201A ADC30170443 Door Assembly Semi Freezer 418A 5300JB1102D Heater Sheath 203A 4987JJ1010E Gasket Assembly Door 419A 5200JA1019A Pipe Joint 212G 4140JD1031A Name Plate 419B MGE58810301 Pipe Joint 212J 4620JJ3007E Stopper Handle 501A 6871JB1410P PCB Assembly...

Страница 84: ...7JB2039G Harness Assembly 170A 3390JJ1236A Tray Snack 412C 6620JB1001C Socket Lamp 200A ADC30116541 Door Assembly Freezer 412D EAD37941001 Harness Assembly 201A ADC30170442 Door Assembly Semi Freezer 418A 5300JB1102D Heater Sheath 203A 4987JJ1010C Gasket Assembly Door 419A 5200JA1019A Pipe Joint 212G 4140JD1031A Name Plate 419B MGE58810301 Pipe Joint 212J 4620JJ3007E Stopper Handle 501A 6871JB1410...

Страница 85: ...March 2009 ...

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