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8-2-1 Power Circuit

- 32 -

8-2-2. Load and Door Light Circuit (HV)

Load Drive Condition Check

To measure outputs of the control board, check voltages between the pins for the following components:
(Refer to Fig. 1).

NOTE: When the door of the refrigerator is left open for 7 minutes or longer, the lamp of the refrigerator turns off
automatically.

COMP

Pin

Connector 1

COMP

Pin

Connector 1

R Lamp

F Lamp

Def

Heater

Ice

Valve

Pin

Connector 2

R Lamp

F Lamp

Def

Heater

Ice

Valve

Pin

Connector 2

115 VAC

Con 1 Pin 3

Con 2 Pin 9

Ice Maker

115 VAC

Con 1 Pin 3

Con 2 Pin 1

and/or 3

R Lamp

115 VAC

Con 1 Pin 3

Con 2 Pin 5

115 VAC

Con 1 Pin 3

Con 2 Pin 7

Defrost

Heater

115 VAC

Con 1 Pin 3

Con 1 Pin 1

Compressor

Output
Voltage

Pin

Number

Pin

Number

Circuit

F Lamp

French Door
Heather

Con 3 Pin 1

Con 3 Pin 3

115 VAC

11 10

GN: GREEN
PK: PINK

PR: PURPLE

MC,MQ COMP'

GY: GRAY

BL: BLUE
RD: RED

WH: WHITE

CON 2

CON 3

ACCESSORIES

OLP

PTC

EG COMP'

FRENCH DOOR HEA

TER

* ALTERNATIVE COMP'

COMBO KIT
(PTC+OLP)

GN/YL: GREEN/YELLOW

BK/WH: BLACK/WHITE
RD/WH: RED/WHITE

BL/WH: BLUE/WHITE

* P.T.C OPTION

CON 1

BO: BRIGHT ORANGE

POWER

SUPPLY

CORD

GN/YL

(GN)

BK: BLACK
YL: YELLOW
SB: SKY BLUE
BN: BROWN

OLP

ICE V

/YL

(GN)

CAPACITOR PART

FUSE-M

(72

LAMP-F

DEF-HEA

TER

A B

LAMPS-R

A B

DOOR S/W

-R1&R2

DOOR S/W

-F

com

P.T.C

COMP' ACCESSORIES

AND MODEL TYPE.

*PLUG TYPE, CAPACITOR PART, P.T.C START

COMP' ACCESSORIES ON CIRCUIT DIAGRAM ARE

OPTION, DOOR HEATER, RT-SENSOR AND

SUBJECT TO CHANGE IN DIFFERENT LOCALITIES

Fig. 1

*ON SOME MODELS

Содержание 795.71302.010

Страница 1: ...L CAUTION BEFORE SERVICING THE PRODUCT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Sears Brands Management Corporation Hoffman Estates IL 60179 U S A www sears com 795 71303 010 795 71306 010 795 71302 010 795 71309 010 795 71304 010 MFL62078208 Printed in Mexico ...

Страница 2: ...DJUSTMENT 4 1 Compressor 4 2 PTC Starter 4 3 OLP overload protector 5 CIRCUIT DIAGRAM 6 TROUBLESHOOTING 6 1 Compressor and electric components 6 2 PTC and OLP 6 3 Other electrical components 6 4 Service diagnosis chart 6 5 Refrigeration cycle 7 OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 7 1 Operation principle 7 2 Ice maker functions 8 CIRCUIT OF MICOM 8 1 Function 8 2 PCB function 8 3 Resi...

Страница 3: ...t touch metal products in the freezer with wet hands This may cause frost bite 6 Prevent water from spiling on to electric elements or the machine parts 7 Before tilting the refrigerator remove all materials from on or in the refrigerator 8 When servicing the evaporator wear gloves to prevent injuries from the sharp evaporator fins 9 Service on the refrigerator should be performed by a qualified t...

Страница 4: ...this information nor can it assume any liability in connection with its use ELECTRICAL SPECIFICATIONS Freezer temperature control Middle setting Defrost Control Defrost Thermostat Electrical Rating 115VAC 60Hz Maximum Current Leakage Maximum Ground Path Resistance Energy Consumption 1 4 NO LOAD PERFORMANCE Control Position MID MID 6 F to 8 F Automatic 46 4 F 1 5 A 0 5mA 0 14 Ohms 466kWh yr Energy ...

Страница 5: ...tor Fan Motor Capacitor Compressor Hi Side Evaporator Lo Side Condenser Dryer Condenser Fan Motor Temperature Control Main Control 1 8 AIR FLOW 6748C 0004D 6750C 0005P 6930JK2001B 5300JB1100J 4681JB1027N 0CZZJB2012J TCA33414101 5421JJ1001B 5403JJ1007A 5851JA2007E 4681JB1027P 6500JB1001M EBR64110503 EVAPORATOR EVAPORATOR FAN DRYER HOT LOOP COMPRESSOR CONDENSER CONDENSER FAN FRESH FOOD FREEZER V ege...

Страница 6: ...nt 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 E H I J L D K N O G Optibin Crispers Keeps fruits and vegetable fresh and crisp Shelves Refrigerator Light Digital Sensor Control Glide Out Drawer Basket Bottle Guide Icemaker F Pantry M Freezer Light B E H I K D O J M G F L N A C On some m...

Страница 7: ...enses its temperature Fuse M is safety device for preventing over heating of the Heater when defrosting At 72 C it turns the Defrost Heater off 1 Pull out the grille assembly Figure 2 2 Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 3 Fig 4 Fig 5 1 Unplug the power cord from the outlet 2 Remove Refrigerator shelve...

Страница 8: ...re on the botton position 3 4 CONTROL BOX REFRIGERATOR CONTROL BOX COVER LAMP Fig 6 1 First remove all shelves in the refrigerator than remove the Refrigerator control Box by loosening 2 screws 2 Remove the Refrigerator Control Box by pulling it downward 3 Disconnect the lead wire on the right position and separate the lamp sockets 8 ...

Страница 9: ...e door onto the middle hinge pin 7 Make sure the door is aligned with the cabinet Replace the top hinge 4 installing hinge screws 3 to secure it Make sure the gasket on the door is flush against the cabinet and is not folded Support the door on the handle side while securing And make sure the door is straight and the gap between the doors is even across the front Install the ground screw 6 Connect...

Страница 10: ...rews of the rail on both sides Fig 13 With both hands hold both sides of the door and pull it up to separate it from the rails Fig 17 Fig 16 Fig 14 C A U T I O N When laying down the drawer be careful not to damage the floor or hurt your feet with the sharp edges on hinge side C A U T I O N When removing drawer door do not hold it by the handle Door could fall down and you may be injured grasp doo...

Страница 11: ...s Rail tabes Door Supports Screws Make sure you have a right rail cover for each side Right Rail cover Left Rail cover Fig 19 Fig 20 Fig 21 Align the top holes of the rail cover with the top holes of the door supports to assemble the rail cover Fig 22 Verify the hole s assembly With the rails pulled out to full extension insert the durabase in the rail assembly Durabase W A R N I N G To prevent ac...

Страница 12: ...e handle NOTE If the handle mounting fasteners need to be tightened or removed use a 1 4 Allen wrench 2 Removing Freezer Drawer Handle Loosen the set screws located on the lower side of the handle with the 3 32 Allen wrench and remove the handle NOTE If the handle mounting fasteners need to be tightened or removed use a 1 4 Allen wrench Mounting Fasteners Allen Wrench Set Screw Fig 26 Fig 27 ...

Страница 13: ...sier to adjust the screws 3 Open both doors again and check to make sure that they close easily If not tilt the refrigerator slightly more to the rear by turning both leveling screws clockwise It may take several more turns and you should turn both leveling screws the same amount 4 Re adjust if necessary 5 Replace the base cover NOTE Your new refrigerator is uniquely designed with two fresh food d...

Страница 14: ...ent 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 cool before the compressor can restart 4 2 5 Relation of PTC St...

Страница 15: ...nts the Motor Coil from being started in the Compressor 2 For normal operation of the OLP do not turn the Adjust Screw of the OLP in any way 15 Part Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 termination part number Electrical characteristics part number No Name Base phenolic UL 94 V 0 rated Movable arm support Stationary contact support plated steel Heater support plated s...

Страница 16: ...ITE I M SENSOR ICE MAKER UNIT 2 2 GY P T C OPTION PWB PCB ASSEMBLY DISPLAY D SENSOR R SENSOR F SENSOR F DOOR S W CON 1 BO BRIGHT ORANGE 8 PWB PCB ASSEMBLY MAIN POWER SUPPLY CORD GN YL GN BK BLACK YL YELLOW SB SKY BLUE BN BROWN F FAN STEPPING MOTOR C FAN BN SB PK PK BO BO WH WH BL BL YL BO BN WH PK BK PR BL WH SB RD SB BL BO WH BK YL BK WH RD BO BL SB RD SB PR BK PK WH BN BO YL 8 1 4 5 6 3 7 2 11 1...

Страница 17: ...r from compressor and measure voltage between T erminal C of compressor and terminal 5 or 6 of PTC Check resistance of two terminals in PTC Starter Check resistance of two terminals in OLP Check the power supply under load Compressor attempting to re start after being off for 5 minutes Check resistance of PTC Starter Check OLP Check starting state Check resistance of motor compressor Check the res...

Страница 18: ...th a T ester Figure 1 Observation value is 115V 60Hz 6 8 20 The resistance value is 0 short or open Check another electric component Replace OLP Replace PTC Starter Fig 1 Fig 2 Normal operation of compressor is impossible or poor Separate OLP from compressor and check resistance value between two terminals of OLP whit a tester Figure 2 18 ...

Страница 19: ...city 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 Wire is open or shorted Coil is shorted or open Open Open Replace defrost heater Replace indicated component Replace indicated compon...

Страница 20: ... high Are any unnecessary objects placed Check if the Tray Drip is not firmly fixed Check if the cover of the compressor enclosure in the front lower side is taken out Check if the door gasket is dirty with an item like juice Check if the inside of the unit is dirty The unit smells of plastic Plug into the outlet Set the switch to ON Replace the fuse If the voltage is low correct the wiring Place ...

Страница 21: ...6 5 REFRIGERATION CYCLE Troubleshooting Chart 21 ...

Страница 22: ...t Partial 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 after it has been...

Страница 23: ...Control Water supply control Waits until water in the TRAY is frozen after Icemaker Starts operation Runs MOTOR to drop ice from the tray into the ICE BIN Performs Icemaking 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 icemaking will run through 3 stages Harvest Fill Icemaking Power Input Adjusts Ejector...

Страница 24: ... to the TRAY a This is to eject ice from the TRAY after ice making is completed b If Hall IC signal is on within 3 6 seconds after ice ejection motor rotates in normal direction it does not proceed ice ejection but waits If the ice bank is full ice ejection motor rotates in normal direction in every hour to check the condition of ice bank If the ice bank is not full the water supply control starts...

Страница 25: ...Sensor Output Signals ON OFF Bank is full Ice checking AXIS LEVEL 30 8 0 10 32 41 53 58 80 160 170 Lock Lock Icemaking original point Ice ejection MAXIMUM TILTING POINT Ice checking AXIS A B C 9 3 sec 8 3 sec 2 1 sec Level Return Conditions Horizontal Conditions ...

Страница 26: ...jecting Ice tray returns to horizontal position Water supply 26 7 2 4 Test Icemaker Mode 7 2 5 Water Supply Function This function is for supply water to tray by the mechanic water valve when ice ejecting finish and tray return to initial position Water supply quantity depend of DIP S W Water Supply Time Table If water supply setting is changed while system is energized change will be made immedia...

Страница 27: ... switch is 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 you need to 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 21hours the freezer will be c...

Страница 28: ...nosis function 8 1 9 4 Defrosting won t function if its sensor is defective wires are cut or short circuited Closed Open Closed Open Within 1 min 1 min 30 sec 30 sec 30 sec Freezer Door or Refrigerator Door Buzzer 28 Reset to normal operation from TEST MODE Total load OFF COMP ON Freezer FAN ON in 7 minute in 1 2 second 8 1 9 Electrical Parts Are Turned On Sequentially Electrical parts such as COM...

Страница 29: ...rator 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 No Item Contents Remarks 1 Normal None DISPLAY switch operates normally 2...

Страница 30: ...in operation when the COLD REFRIGERATOR TEMP KEY COLD FREEZER TEMP KEY are pressed for more than one second at the same time then the freezer fan RPM changes for example if high speed to normal speed or if normal speed to high speed for 30 seconds After 30 seconds it turns to its original RPM Demonstration Display MODE 1 To enter this mode raise either the Refrigerator or Freezer temperature to it...

Страница 31: ... 31 8 2 PCB FUNCTION CON 1 CON 3 CON 2 CON 8 CON 9 CON 10 CON 7 CON 6 CON 5 CON 4 ...

Страница 32: ...Output Voltage Pin Number Pin Number Circuit F Lamp French Door Heather Con 3 Pin 1 Con 3 Pin 3 115 VAC L N BN BL BL 7 9 11 10 8 6 3 4 2 5 GN GREEN PK PINK PR PURPLE 9 BK 1 PR 3 4 6 5 7 RD BN 2 4 5 MC MQ COMP 3 6 GY GRAY BL BLUE RD RED WH WHITE 8 SB 1 CON 2 2 3 1 CON 3 BN SB BL 4 3 2 CR BL ACCESSORIES N OLP 6 5 PTC EG COMP L BK FRENCH DOOR HEATER ALTERNATIVE COMP COMBO KIT PTC OLP GN YL GREEN YELL...

Страница 33: ...n 1 4 Pin Connector 8 2 PIN 11 10 9 8 7 6 5 4 3 2 1 NC R Sensor F Sensor Connector 7 Pipe Heater F Door S W D Sensor CON 102 CON 5 6 5 4 2 1 3 CON 4 5 6 GY PR 4 3 10 9 SB 8 7 BN 1 2 WH 11 12 BL BK YL RD CON 6 9 10 1211 1413 CON 7 2 7 3 6 5 4 1 1110 9 8 A B PIPE HEATER 7 6 5 4 2 1 3 4 C GY CON 8 R DOOR S W D IC M HALL 5 6 7 8 9 10 3 4 BO BO BN BK BL YL WH RD CON 9 I M MOTOR I M TEST S W BN 2 1 BN R...

Страница 34: ...Pin 2 Con 4 Pin 3 10 14Vdc 2Vdc or less Output Voltage Pin Number Pin Number FAN PIN 12 11 10 9 8 7 6 5 4 3 2 1 NC NC NC V G F V G NC Stepping Motor Connector 4 NC C Fan F Fan PIN 10 9 8 7 6 5 4 3 2 1 Connector 9 I M Motor Hall IC I M Test S W I M Stop S W I M Sensor Circuit Pin Number Pin Number Output Voltage I M Stop S W Con 9 Pin 3 Con 9 Pin 4 0 5Vdc I M Test S W Con 9 Pin 5 Con 9 Pin 6 0 5Vdc...

Страница 35: ...NSOR TEMPERATURE DETECTED RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR DEFROST SENSOR ROOM SENSOR SENSOR SENSOR 20 C 15 C 10 C 5 C 0 C 5 C 10 C 15 C 20 C 25 C 30 C 40 C 50 c 22 3 K 16 9 K 13 0 K 10 1 K 7 8 K 6 2 K 4 9 K 3 9 K 3 1 K 2 5 K 2 0 K 1 4 K 0 8 K 77 K 60 K 47 3 K 38 4 K 30 K 24 1 K 19 5 K 15 9 K 13 K 11 K 8 9 K 6 2 K 4 3 K This delay is necessary due to sensor response speed 35 ...

Страница 36: ... 305B 305C 305C 503D 282B 409D 120B 409B 158A 332A 135C 405A 158E 145B 409B 503C 503E 106A 145A 282F 405C 405F 319E 329A 404A 903D 610A 903E 610A 262H 503G 406B S22 405G 103C 105F 410A S01 503F 619B 281A 402A 282E 402A 271C 271A S38 B01 105A 410G 327A 318A 317A 309A 314A 307A 419B 307B 312A 310A 328A 412D 323B 329C 420A 319A 319C 405B 405B 308A 128E 128F S01 ...

Страница 37: ...136A 136B 248E 248F 131A 145C 145F EV FREEZER PARTS CAUTION Use the part number to order part not the position number 37 ...

Страница 38: ... EV REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number 141B 141B 141B 141B 143F 143F 143F 143F 141C 141C 141C 141C 248G 248G 248G 248G 147C 147A 38 ...

Страница 39: ...REFRIGERATOR PARTS PANTRY Caution Use the part number to order part not the position number 154A 145G 145H 128A 128B 145J 154B 170A 151A 151B 167B 39 EV ...

Страница 40: ...243B 286A 212J 243A S27 243B 286A 212J EV DOOR PARTS CAUTION Use the part number to order part not the position number 212A 212A 203A 200A 201A 250A 249J 250B 249E 249A 621B 249K 249F 249B 250B 621C 212B 212J 241C 241H 248M 248L 241C 241H 248M 248L 241H 241C 248M 248L 241H 241C 248M 248L 241H 241C 248M 248L 40 ...

Страница 41: ...623C S29 627A 619A 619C 262D S31 WATER ICEMAKER PARTS Caution Use the part number to order part not the position number 600A 622B 616E 41 EV ...

Страница 42: ......

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