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6-4 SERVICE DIAGNOSIS CHART

- 20 -

COMPLAINT

SYMPTOM

POSSIBLE CAUSES

SOLUTION

1. Supply voltage not within specifications

1. Check supply voltage to refrigerator

2. Open in wiring harness from PWB board

2. Chack wiring and connectors to PWB board

3. Open in door monitor switch circuit

3. Check door monitor circuit

1. Supply voltage not within specifications

1. Check supply voltage to refrigerator

2. Open wiring harness from PWB board

2. Chack wiring and connectors to PWB board

1. Compressor not operating

1. Check for compressor operation by using the test key
on main circuit board.

2. Open in compressor circuit

2. Check for open on OLP, PTC, compressor, wiring, etc.

1. Condenser fan motor not operating

1. Check condenser fan motor and wiring circuit

2. Condenser coils blocked

2. Check air flow across condenser

3. Evaporator fan motor not operating

3. Check evaporator fan motor and wiring circuit

4. Internal air flow blocked

4. Check air ducts

5. Sensor not operating properly

5. Check refrigerator and freezer sensors

6. Door not sealing

6. Check for proper door seal

7. Evaporator frosted up

7. Check defrost circuit components

8. Sealed system related problem

1. Open in defrost circuit

1. Check defrost heater and circuit using Test Key

2. Defrost sensor not operating correctly

2. Check sensor

3. Defrost drain clogged

3. Check drain

1. Freezer has to
much frost

1. Display on
compressor is
operating

1. No Display at all

2. Partial or
abnormal display

1. Display on but
compressor not
operating

Electronic Display not

operating correctly

Not cooling

Not cold enough

Not defrosting

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Содержание 795.69292.902

Страница 1: ... 795 69292 902 795 69293 902 795 69299 902 795 69372 902 795 69374 902 795 69376 902 795 69379 902 795 69912 902 795 69913 902 795 69919 902 795 69972 902 795 69974 902 795 69976 902 795 69979 902 795 79292 902 795 79293 902 795 79299 902 795 79372 902 795 79374 902 795 79376 902 795 79379 902 795 79912 902 795 79913 902 795 79919 902 795 79972 902 795 79974 902 795 79976 902 795 79979 902 MFL6207...

Страница 2: ...ESCRIPTION OF FUNCTION CIRCUIT OF MICOM 8 1 Function 8 2 PCB function 8 3 Resistance specification of sensor 9 EXPLODED VIEW AND REPLACEMENT LIST 2 3 5 6 6 6 7 7 8 9 12 12 13 13 13 13 14 14 14 15 16 17 17 18 19 20 21 22 22 23 25 26 26 29 32 33 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator 1 Check the refrigerator for current leakage 2 To prevent elect...

Страница 3: ...etation of this information nor can it assume 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 5A Maximum Current Leakage 0 5mA Maximum Ground Path Resistance 0 14Ohms Energy Consumption 19cuft 396KWh yr Energy star 22cuft 423KWh yr Energy star 1 4 NO ...

Страница 4: ...t 6615JB2005C Defrost Heater 19cuft 5300JK1003D 22cuft 5300JK1003J Evaporator Fan Motor 4681JB1029J Capacitor 0CZZJB2012J Compressor Hi Side TCA33414101 Evaporator Lo Side 19cuft 5421JJ0003A 22cuft 5421JJ0002A Condenser 19cuft 5403JJ1010A 22cuft 5403JJ1008A Dryer 5851JJ2002F Temperature Control 6871JB2036D Main Control EBR41531306 4 EVAPORATOR EVAPORATOR FAN DRYER HOT LOOP COMPRESSOR CONDENSER CON...

Страница 5: ...ar with the parts and features Page references are included for your convenience 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 I K L J M Shelves Crisper F G Base Grille H Keeps fruits and vegetables fresh and crisp A C D E F H I O L G M N O Vitabox...

Страница 6: ...de Lift freezer door slightly and remove it Fig 3 Set aside Fig 1 3 2 REMOVE REFRIGERATOR DOOR Loosen and remove the 2 bolts and the phillips head screw to remove the Middle Hinge Bracket from refrigerator housing Fig 4 and 5 Set parts aside Lift up door slightly and remove it To replace doors begin with refrigerator door and then follow with freezer door Fig 2 Fig 5 Fig 6 Fig 4 Middle Hinge Brack...

Страница 7: ...CE FREEZER DOOR Set the freezer door onto the Middle Hinge Pin Fig 9 Place Upper Hinge s Pin in the top of freezer door and line up the Upper Hinge with holes in top of refrigerator Use the 3 bolts to replace Hinge Fig 10 Carefully force t Top Hinge Cover back into place over Hinge Fig 11 Fig 7 Fig 8 Fig 10 Fig 11 Fig 9 ELECTRICAL SHOCK HAZZARD Before you begin either unplug the refrigerator or tu...

Страница 8: ...of the door keeping the same orientation and move the Hinge Pin Insert into the hole on the left side of the bracket Fig 17 Reverse Door Closer Stop by flipping over see Fig 18 place on top of Hinge Pin Insert Bracket and tighten both down with the screw Pry off cover on top of refrigerator on left side to uncover screw holes Fig 19 Set freezer door and Top Hinge parts to the side and remove refri...

Страница 9: ...3 32 inch socket wrench with 2 inch extension loosen the 3 bolts and remove the Bottom Hinge from right side of housing Fig 23 Fig 23 3 6 REVERSE AND REATTACH REFRIGERATOR DOOR Remove base grill Remove the washer from the Bottom Hinge Pin Fig 22 Using a inch socket wrench loosen and remove the Hinge Pin from the Bottom Hinge Reattach the Hinge Pin to the opposite side of the Hinge see Fig 22 and 2...

Страница 10: ...lace Hinge Pin Insert into the left side of the bracket Tighten Hinge Pin Bracket to door Fig 28 Take Door Closer stop and flip see Fig 29 Line up screw holes and mount on left side of door bottom with the two screws Turn door upright It is now ready for re attaching With flat head screwdriver carefully pry off and remove the cover over the screw holes on the left side of refrigerator housing Fig ...

Страница 11: ...les in top of refrigerator Use the 3 bolts to replace Hinge Tighten bolts Force fit Top Hinge Cover over Top Hinge Replace cover from left side of refrigerator top onto the right of top to cover the holes Cover is also force fitted After changing doors make sure that the corners of the Door Gaskets are not folded over To ensure a good seal apply a small amount of silicon grease on the corners of g...

Страница 12: ... to lower it It may take several turns of the Leveling Screw to adjust the tilt of the refrigerator NOTE Having someone push against the top of the refrigerator takes some of the weight off the Leveling Screws This makes it easier to adjust the screws 4 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 Levelin...

Страница 13: ...to remove it 4 Turn the lamp counterclockwise 5 Assemble in reverse order of disassembly Replacement bulb must be the same specification as the original Max 40 W 1EA 3 12 CONTROL BOX REFRIGERATOR 1 First remove all shelves in the refrigerator Then 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...

Страница 14: ...metic connector rusts out or fails refrigerant and oil will be expelled into the contact area probably resulting in smoke and fire 5 When replacing the compressor be careful that dust humidity and soldering flux don t contaminate the inside of the compressor Contamination in the cylinder may cause noise improper operation or even cause it to lock up 4 2 PTC STARTER COMBO 4 2 1 Composition of PTC S...

Страница 15: ...ng in the OLP 2 When high current flows to the compressor motor the bimetal wors by heating the heater inside the OLP and the OLP protects the motor by cutting off the current flowing to the compressor motor 4 3 2 Role of the OLP 1 The OLP is attached to the sealed compressor used for the refrigerator It prevents the motor coil from being started in the compressor 2 For normal operation of the OLP...

Страница 16: ...1 BL I MAKER W VALVE FUSE M GN 98 C BK FUSE M BL OLP PART COMP EARTH 72 C GN BL HEATER RD GN BL R LAMP YL M S PWB PCB ASSEMBLY ICE MAKER ICE MAKER PART POWER SUPPLY L N CORD V V SHEATH com nc nc com DOOR S W R A B SB BN YL BL BL BK SB BN PWB PCB ASSEMBLY MAIN DIFFERENT LOCALITIES AND MODEL TYPE ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN P T C COMP ACCESSORIES AND COMP EARTH PART PLUG TYPE ICE MAK...

Страница 17: ...minal C of compressor and terminal 5 or 6 of PTC Combo Check resistance of PTC Starter Combo 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 Replace compressor Check resistance of motor compressor The resistan...

Страница 18: ...ure 2 Observation value is 115V 60Hz 6 8 30 The resistance value is 0 short or 8 open Check another electric component Replace OLP Replace PTC Starter Combo Figure 1 Figure 2 Figure 3 Normal operation of compressor is impossible or poor Separate OLP from compressor and check resistance value between two terminals of OLP with a tester Figure 3 at room temperature PTC Combo OK OLP OK ...

Страница 19: ...or broken or open contact Shorted Lack of capacity Replace indicated component Raise voltage Replace indicated component Cause Check voltage at starting devices Check current at Compressor Check rating of OLP Fan motor doesn t run Heavy frost buildup on EVAPORATOR Wire is open or shorted Coil is shorted or open Open Open Replace Defrost Heater Replace indicated component Replace indicated componen...

Страница 20: ...ot operating 1 Check condenser fan motor and wiring circuit 2 Condenser coils blocked 2 Check air flow across condenser 3 Evaporator fan motor not operating 3 Check evaporator fan motor and wiring circuit 4 Internal air flow blocked 4 Check air ducts 5 Sensor not operating properly 5 Check refrigerator and freezer sensors 6 Door not sealing 6 Check for proper door seal 7 Evaporator frosted up 7 Ch...

Страница 21: ...lowing sound of refrigerant Lower than Cooling operation restarts RESTRICTION stops periodically is not heard and frost melts ambient when heating the inlet of the temperature capillary tube COMP Freezer and Low flowing sound of A little higher Low pressure at high side RESSION Refrigerator refrigerant is heard and ambient of compressor due to low don t cool frost forms in inlet only temperature r...

Страница 22: ...rk Position Fill Test Mode Waits until water becomes cold after starting the Icemaking 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 With the detect lever checks if...

Страница 23: ...ing function will be completed in 4 hours NOTE After icemaker power is ON the icemaker heater will be on for test for 9 seconds 7 2 3 Harvest Mode 1 Harvest Ice removing refers to the operation of dropping cubes into the ice bin from the tray when icemaking has Completed 2 Harvest mode 1 The heater is ON for 30 seconds then the motor starts 2 After performing Step 1 the heater is turned OFF the ej...

Страница 24: ... This changes the time allowed for fill as illustrated in the table below Water supply amount TABLE STAGE TIME TO SUPPLY INDICATIONS REMARKS 1 2 3 6 sec 7 sec 8 sec The water amount will vary depending on the water control switch setting as well as the water pressure of the connected water line NOTE Below is an example used by another vendor as an explanation of what is taking place ...

Страница 25: ...shown on Ice Maker water supply control panel ERROR indicators in table can be checked only in TEST mode STAGE ITEMS INDICATOR REMARKS 1 2 3 4 5 6 HEATER MOTOR HALL IC TRAY SOLENOID VALVE HALL IC LEVER Reset Five seconds after heater starts heater will go off if temperature recorded by sensor is 10 C or lever is in up position Five seconds after heater starts you can confirm that motor is moving Y...

Страница 26: ... C in 1 hour the defrost mode is malfunctioning Refer to the defect diagnosis function Defrosting won t function if the sensor if defective wires are cut or short circuited 8 1 3 Electrical Parts Operation in Sequence Electrical parts such as COMP defrost heater freezer FAN etc Operate in the following order to prevent noise and parts damage Several parts are started at the same time at initial po...

Страница 27: ...e LEDs ERROR CODE on Refrigerator Temperature panel NO Item Error Code Error Description Remarks R2 R3 R4 R5 1 Ref Sensor Ref Sensor Open or Short 2 Heater Sensor Defrost Sensor Open or Short Check each sensor 3 RT Sensor Defrosting 4 Problem 5 F FAN LOCK F FAN LOCKED locking the F FAN Ambient Sensor Open or Short Check FUSE M DEF SENSOR Drain Heater Drive Relay Defrost time last more than one hou...

Страница 28: ...red and the error code is displayed 6 While an error code is displayed the test mode will not be activated MODE Key Control Operation Remarks 1 Continuous operation of the Push the test COMP Freezer FAN button once and Cooling FAN The maximum TEST 1 2 DEFROSTING HEATER OFF time for TEST 1 3 ALL DISPLAY ON is 5 min 4 LAMP RELAY ON OFF OPERATED BY DOOR SWITCH 1 COMP OFF Ref Temp Display Push the tes...

Страница 29: ...8 2 PCB FUNCTION 29 Con 1 Con 3 Con 2 Con 8 Con 2 Con 5 Con 6 Con 7 ...

Страница 30: ... CORD V V SHEATH com nc nc com DOOR S W R A A B B SB BN YL BL BL BK SB BN GN GN YL COMP ACCESSORIES FIGURE 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 figure 1 PIN 11 9 7 5 3 1 N L1 L I M N I M N COMP PIN 5 7 N C DEF HTR N C DOOR LAMP CONNECTOR 1 CONNECTOR 2 1 3 NOT...

Страница 31: ...0 volts indicates a short in the sensor circuit A measurement of 5 volts indicates an open in the sensor circuit PIN 1 2 3 4 5 6 7 8 PIN 1 2 3 4 N C N C N C N C CONNECTOR 8 RT SNR R DOOR S W D SNR R SNR CONNECTOR 7 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 Nu...

Страница 32: ... Measure the F SENSOR SUPER FROST SENSOR R1 R2 SENSOR after disconnect CON5 of PWB AS SY MAIN TEMPERATURE RESISTANCE OF REFRIGERATOR DEFROST SENSOR VOLTAGE 20 C 4 F 77 3 73 15 C 5 F 60 3 49 10 C 14 F 47 3 3 22 5 C 23 F 38 4 2 95 0 C 32 F 30 2 67 5 C 41 F 24 1 2 4 10 C 50 F 19 5 2 14 15 C 59 F 15 9 1 89 20 C 68 F 13 1 66 25 C 77 F 11 1 46 30 C 86 F 8 9 1 27 40 C 104 F 6 2 0 96 50 C 122 F 4 3 0 72 t...

Страница 33: ... B01 301A 401A 418A 282E 501F 410G 411A 501A 304A 282B 406B 282H S14 125D 145B S01 125D 106A B03 283B 282C 158A 409B S16 503D 503C 903D 120B 120A S01 619B 319A 319C 106A 305B 305C 315A 305C 305B S01 S01 105F 103C EV 145A 33 105A 317A 318A S01 S01 328A 307A 314A 327A 308A 309A 310A 323B 307B 312A 328A 420A 329C 412D 405B 405B 419B 282X 623H ...

Страница 34: ...405C 404A 319E 330B 405F S01 332A 149F 149A 284C 284A 329A 110D S22 404Z FREEZER PARTS CAUTION Use the part number to order part not the position number EV 34 125A 131A ...

Страница 35: ...A 140D 143E 140B 140E S24 S24 170A 128A 128B 143F 142E 142D S24 S24 140B 103E 103E 140D 143E 140B 140E S24 S24 140D 143E 140B 140E S24 S24 REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number EV 35 ...

Страница 36: ...243A 283F 205D 205D 200A 201A 203A 212G 286A 210B 210A 241A 241B 230A 231A 233A 281E 241C 241E 241C 241C 241D 286A DOOR PARTS CAUTION Use the part number to order part not the position number EV 36 ...

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