LG
Bottom-Mount Refrigerator

Model # LRFC21755SB Official LG refrigerator

Here are the diagrams and repair parts for Official LG LRFC21755SB refrigerator, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 186 parts  |

Refrigerator Filter Dryer 5851JA2007E
#317A

Case parts diagram

Refrigerator filter dryer

Part #5851JA2007E

Replaced by #ADH73150210

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Manufacturer substitution
This part replaces 5851JA2007E. Substitute parts can look different from the original.
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Refrigerator Door Switch (replaces 6600jb1004a) 6600JB1010A
#406B

Case parts diagram

Refrigerator door switch (replaces 6600jb1004a)

Part #6600JB1010A

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Refrigerator Drain Tube (replaces 5251ja3003a, 5251ja3003e) 5251JA3003D
#105A

Case parts diagram

Refrigerator drain tube (replaces 5251ja3003a, 5251ja3003e)

Part #5251JA3003D

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Refrigerator Defrost Sensor Assembly (replaces 6007ja3006r, 6615jb2005m) 6615JB2005H
#400A

Case parts diagram

Refrigerator defrost sensor assembly (replaces 6007ja3006r, 6615jb2005m)

Part #6615JB2005H

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Refrigerator Evaporator Fan Blade 5901JA1021A
#329A

Case parts diagram

Refrigerator evaporator fan blade

Part #5901JA1021A

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Refrigerator Motor Assembly 4681JK1004D
#404AA

Case parts diagram

Refrigerator motor assembly

Part #4681JK1004D

Replaced by #4681JB1029H

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This part replaces 4681JK1004D. Substitute parts can look different from the original.
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Refrigerator Evaporator Fan Motor 4681JB1027H
#404A

Case parts diagram

Refrigerator evaporator fan motor

Part #4681JB1027H

Replaced by #4681JB1029H

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Manufacturer substitution
This part replaces 4681JB1027H. Substitute parts can look different from the original.
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Refrigerator Door Stop 4620JJ2009A
#243B

Door parts diagram

Refrigerator door stop

Part #4620JJ2009A

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Refrigerator Temperature Sensor 6500JB2002P
#610C

Case parts diagram

Refrigerator temperature sensor

Part #6500JB2002P

Replaced by #6500JB2002X

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This part replaces 6500JB2002P. Substitute parts can look different from the original.
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Refrigerator Defrost Heater (replaces 5300jk1005l) 5300JK1005D
#408A

Case parts diagram

Refrigerator defrost heater (replaces 5300jk1005l)

Part #5300JK1005D

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Most common symptoms to help you fix your refrigerators

Choose a symptom to see related refrigerator repairs.

Main causes: damaged door seal, faulty defrost sensor or bi-metal thermostat, broken defrost heater, bad defrost timer o…

Main causes: control board or cold control failure, broken compressor start relay, compressor motor failure, defrost tim…

Main causes: blocked vents, defrost system problems, evaporator fan failure, dirty condenser coils, bad sensors, condens…

Main causes: leaky door gasket, defrost system failure, evaporator fan not running, dirty condenser coils, condenser fan…

Main causes: jammed ice cubes, broken ice maker assembly, dirty water filter, kinked water line, bad water valve, freeze…

Main causes: blocked air vents, compressor problems, condenser or evaporator fan not working, control system failure, se…

Main causes: water valve leaking, frozen or broken defrost drain tube, overflowing drain pan, cracked water system tubin…

Things to do: clean condenser coils, replace the water filter, clean the interior, adjust doors to prevent air leaks, cl…

Most common repair guides to help fix your refrigerators

These step-by-step repair guides will help you safely fix what’s broken on your refrigerator.

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator temperature control board

How to replace a refrigerator temperature control board

If the temperature in your refrigerator doesn't match the temperature you set, the problem could be the temperature cont…

Repair difficulty
Time required
 30 minutes or less
How to clean refrigerator condenser coils

How to clean refrigerator condenser coils

Help your refrigerator run more efficiently by cleaning the condenser coils. It's easy and takes just a few minutes.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your refrigerators

Use the advice and tips in these articles and videos to get the most out of your refrigerator.

How to Replace the Water Filter in a Maytag Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

No matter what style Maytag refrigerator you have, we can walk you through replacing the water filter.…

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

How to prevent water dispenser and ice maker problems

How to prevent water dispenser and ice maker problems

If your refrigerator's ice maker isn't producing as much ice as it should, or water is flowing poorly from the dispenser…