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2. PARTS IDENTIFICATION

- 4 -

Use this section to become more familiar with the parts and features.

NOTE:

This guide covers several diferent 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.

Custom Cube Icemaker *
Ice Bin
Ice Tray *
Freezer Shelf
Freezer Temperature Control
Refrigerator Temperature Control
Shelves
Refrigerator Light (LED)

Pantry Drawer

Crispers

Freezer light (LED)

Freezer Door Bins

* On some models

A

B

C

D

E

F

G

H

J

K

L

I

Dairy Bin

M

A

O

B

C

D

E

F

G

H

L

N

I

J

M

K

Refrigerator Door Bins

N

F. Deco Duct

N

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Содержание LTCS20220B

Страница 1: ...MODELS LTCS20220W 01 LTCS20220B 01 LTCS20220S 01 REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ...

Страница 2: ...DESCRIPTION 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 4 5 5 5 6 6 6 7 10 10 10 11 11 11 12 12 12 13 14 15 15 16 17 18 19 20 20 21 23 24 24 27 30 30 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator 1 Check the refrigerator for current leakage 2 To prevent elec...

Страница 3: ... MICOM control Full Automatic Heater Defrost Polyurethan 2 full 1 small Yes No Plastic 2 LED 1 Glass 1 7 40 Hours PCM Fin Tube Type 4 Hours Fan Cooling BMA069LAMV 115V 60Hz Climate class MODELS SPECIFICATIONS Capacity Refrigerant Net Weight Dimensions W D H GENERAL FEATURES Color Anti freezing Heater Cooling System Rated Rating Insulation Compressor Temperature Control Defrosting System Evaporator...

Страница 4: ...tems listed below The locations of the features shown below may not match your model Custom Cube Icemaker Ice Bin Ice Tray Freezer Shelf Freezer Temperature Control Refrigerator Temperature Control Shelves Refrigerator Light LED Pantry Drawer Crispers Freezer light LED Freezer Door Bins On some models A B C D E F G H J K L I Dairy Bin M A O B C D E F G H L N I J M K Refrigerator Door Bins N F Deco...

Страница 5: ...lly lift up the door Place the door on a non scratching surface Using either a 10 mm or 13 32 in socket wrench remove the three bolts and lift off the top hinge Set parts aside Carefully lift up the freezer door Place the door on a non scratching surface WARNING WARNING Excessive Weight Hazard Use two or more people to remove and install the refrigerator doors Failure to do so can result in back o...

Страница 6: ... the upper hinge with the holes on top of the refrigerator Use the three bolts to replace the hinge Carefully force fit the top hinge cover back into place over the hinge Fig 11 REVERSING DOORS CAUTION Remove food and any Adjustable Shelves or Door Bins from doors Failure to do so could result in serious injury TOOLS NEEDED 10mm or 13 32 inch socket wrench with 2 inch extension for bottom door hin...

Страница 7: ...nsert Bracket and tighten both down with the screw Middle Hinge Bracket Hinge Pin Fig 19 Door Closer Stop Fig 20 Hinge Pin Insert Bracket Hinge Pin Insert Fig 21 Fig 22 Pry off the cover on the top left side of the refrigerator to uncover the screw holes Set the freezer door and top hinge parts to the side and remove the refrigerator door REVERSING THE REFRIGERATOR DOOR Using a socket wrench loose...

Страница 8: ... of the refrigerator housing You will need these holes for the Bottom Hinge Move the Bottom Hinge to the left side of the housing keeping the same orientation and reattach with the two bolts and one screw The flat screw must be placed on the exterior side of the hinge Move the Decorative Bolt to the hole on the lower right side of the housing Turn the refrigerator door upside down on a nonscratchi...

Страница 9: ...h a socket wrench NOTE Bracket has been flipped but Hinge Pin stays in the same orientation with its hexagonal end facing upward Insert the Decorative Screw into the outer hole on the right side of the housing Attach cover on the right side Cover is force fitted Fig 39 Fig 40 Middle Hinge Bracket Flange Fig 41 REATTACHING THE DOORS Place the freezer door down over the Hinge Pin on the Middle Hinge...

Страница 10: ...o adjust it to the inclination you would like NOTE Having someone push against the top of the refrigerator takes some weight off the leveling screws This will make it easier 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...

Страница 11: ...the Heater when defrosting 1 Pull out the grille assembly Figure 41 2 Separate the connector of the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 42 3 11 LIGHTS 3 11 1 Freezer Compartment Light Top 1 Unplug the power cord from the outlet 2 Put a flat screwdriver into service hole and remove the cover of Freezer light 3 Remove the LED assembly f...

Страница 12: ...4 2 PTC STARTER 4 2 1 Composition of PTC Starter 1 PTC Positive Temperature Coefficient is a no contact semiconductor starting device which uses ceramic material consisting of BaTiO3 2 The higher the temperature is the higher the resistance value These features are used as a starting device for the motor 4 2 2 Role of PTC Starter 1 The PTC is attached to the Sealed Compressor and is used for start...

Страница 13: ...sult in damage to the product fire injury or possibly death Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 Physical termination part number Electrical characteristics part number OVERLOAD PROTECTOR cross section Fig 45 4 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 mo...

Страница 14: ...5 CIRCUIT DIAGRAM 14 ...

Страница 15: ...en Terminal C of compressor and terminal 5 or 6 of PTC Check resistance of 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 Replace compressor Check resistance of motor compressor The resistance bet...

Страница 16: ...ure 1 Observation value is 115V 60Hz 6 8 20 The resistance value is 0 short or Check another electric component Replace OLP Replace PTC Starter Figure 1 Figure 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 at room temperature 25 c 8 2 at 25 c ...

Страница 17: ...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 18: ... 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 Chec...

Страница 19: ...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 20: ...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 insert pin at hole located at front press internal button and hold 3 seconds Harvest Fill Icemaking With the detect lever checks if the ICE BIN is full Power On Ad...

Страница 21: ...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 22: ...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 NOTE The water mount only mu...

Страница 23: ...ker 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 You can confirm ...

Страница 24: ...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 power on and are turned off together when TEST is completed OPERATING ORDER REMA...

Страница 25: ...1 R2 R3 R4 R5 1 Failure of Refrigerator Sensor Ref Sensor Open or Short circuit wire 15min ON 15 min OFF 15min ON 15 min OFF Normal 2 Failure of Defrost Sensor Defrost Sensor Open or Short circuit wire Normal Normal No defrost 3 Failure of Room Temperature Sensor RT Sensor Open or Short circuit wire Normal Normal Normal 4 Failure of Defrost mode When defrosting sensor do not reach reach 50 F 10 wi...

Страница 26: ... takes 10 seconds to be enable 2 In this Status all loads are OFF compressor fans heaters only LED lamp will be in normal function 3 To exit of the Demonstration Mode press the Temperature Adjust button and set the desired temperature level The device will reset after 10 seconds and the display will blink one time Note If door is opened within the first 5 minutes from power on the demonstration mo...

Страница 27: ...8 2 PCB FUNCTION 27 CON 1 CON 2 CON 4 CON 5 CON 6 CON 7 CON 8 CON 9 ...

Страница 28: ... figure 1 28 CONNECTOR 1 PIN 11 9 7 5 3 1 NEUTRAL LIVE L I M N I M N COMP Circuit Pin Number Pin Number Output Voltage Compressor Con 1 Pin 1 Con 1 Pin 3 115 VAC Defrost Heater Con 2 Pin 7 Con 1 Pin 3 115 VAC Ice Maker Con 1 Pin 7 Con 1 Pin 3 115 VAC Pilot Valve Con 2 Pin 1 Con 1 Pin 3 115 VAC CONNECTOR 2 PIN 7 5 3 1 DEF HTR R HTR PILOT V 2 Door Monitor Circuit LV Refrigerator Measurement between ...

Страница 29: ...Con 7 Pin 6 RT SNR Con 8 Pin 1 Con 8 Pin 2 3 LED Power Circuit LV Circuit Pin Number Pin Number Output Voltage LED Power Con 6 Pin 10 Con 6 Pin 11 12 VDC CONNECTOR 6 PIN 1 2 3 4 5 6 7 8 9 10 11 DISPLAY 12V GND volts indicates an open in the sensor circuit temperature in the compartments A measurement of 0 volts indicates a short in the sensor circuit A measurement of 5 Voltage supplied to each sen...

Страница 30: ...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 To measure the outputs of the fans on the control boards check the voltages between the pins for the following components MOTOR ON MOTOR OFF Freezer Fan Con 4 pin 5 Con 4 pin 6 10 14 VCD 2 VC...

Страница 31: ...mber 103A S01 103A 281A 281B 301A 401A 418A 282E 501F 411A S01 501A 304A 282B S13 406B 282H 402D 283B 120A 120A 120A 120A 105A 318A 323B 420A 405G 405D 329C 319D 319F 106A 106A EV 305B 305C 315A 305C 305B S01 S01 9 EXPLODED VIEW 317A 120A 120E 501B 279A 120B LD1 158B LD1 LD3 158D 158C 404X 503G 410A B01 S38 311A ...

Страница 32: ...FREEZER PARTS CAUTION Use the part number to order part not the position number 405C 404A 319E 330B S01 332B 332A 284A 329A 110D EV 405F 404Z 149F S16 ...

Страница 33: ...REFRIGERATOR PARTS CAUTION Use the part number to order part not the position number 167F 143F 143A 155F EV 167B 170A 151A 151A 154A 151D 151C 155B ...

Страница 34: ...DOOR PARTS CAUTION Use the part number to order part not the position number 241A 230A 231A 233A 281E 241C 241C 241D 286A EV 205A 205A 200A 201A 203A 212G 286A 210B 210C 210A ...

Страница 35: ...ICE MAKER PARTS CAUTION Use the part number to order part not the position number 131A 600A 602A 600C 619C 623A 627A EV S01 618A ...

Страница 36: ...May 2015 P No MFL31442314 ...

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