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Model #LRSCS21935SW Official LG refrigerator

Here are the diagrams and repair parts for LG LRSCS21935SW refrigerator, as well as links to manuals and error code tables, if available.

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Error Codes

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Symptoms common to all refrigerators

Choose a symptom to see related refrigerator repairs.

Why is my freezer not cold enough?

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

What routine maintenance does my refrigerator need?

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

Why won't my refrigerator ice maker make ice?

Main causes: jammed ice cubes, broken ice maker assembly, dirty water filter, kinked water line, bad water valve, freezer not cold enough

Why is frost building up in my refrigerator's freezer?

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

Why won't my refrigerator run?

Main causes: control board or cold control failure, broken compressor start relay, compressor motor failure, defrost timer problems

Why won't my refrigerator cool at all?

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

Why isn't my refrigerator cooling well?

Main causes: blocked vents, defrost system problems, evaporator fan failure, dirty condenser coils, bad sensors, condenser fan not working

Why is water dripping from my refrigerator onto the floor?

Main causes: water valve leaking, frozen or broken defrost drain tube, overflowing drain pan, cracked water system tubing, leaking door seal

Repair guides common to all refrigerators

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

July 20, 2015

How to clean refrigerator condenser coils

By Lyle Weischwill

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

July 20, 2015

How to replace a refrigerator water valve

By Lyle Weischwill

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

July 20, 2015

How to replace a refrigerator temperature control board

By Lyle Weischwill

If the temperature in your refrigerator doesn't match the temperature you set, the problem could be the temperature control board—a service technician can give you a definite diagnosis. If the board is at fault, follow these steps to replace it yourself.

Repair difficulty

Time required

30 minutes or less