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LG
Top-Mount Refrigerator

Model # LRTB1821BS Official LG refrigerator

Here are the diagrams and repair parts for Official LG LRTB1821BS refrigerator, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 99 parts  |
Refrigerator Drier 5851JA2003B

#317A

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Refrigerator drier

Part #5851JA2003B

Replaced by #ADH73150210

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Manufacturer substitution
This part replaces 5851JA2003B. Substitute parts can look different from the original.
BEST SELLER
$65.17 | 
8% OFF Phone Price : $71.17
In Stock
Refrigerator Condenser Fan Blade J753-00011A

#329A

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Refrigerator condenser fan blade

Part #J753-00011A

Replaced by #5901JA1013A

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Manufacturer substitution
This part replaces J753-00011A. Substitute parts can look different from the original.
This item is not returnable
$11.11 | 
15% OFF Phone Price : $13.11
In Stock
Refrigerator Rubber J756-00008B

#405C

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Refrigerator rubber

Part #J756-00008B

Replaced by #J756-00008B

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Manufacturer substitution
This part replaces J756-00008B. Substitute parts can look different from the original.
$8.97
In Stock
Refrigerator Evaporator Fan Motor Bracket 4810JA3007A

#405A

All parts diagram

Refrigerator evaporator fan motor bracket

Part #4810JA3007A

$8.97
In Stock
Refrigerator Thermostat 6930JB1007C

#110A

All parts diagram

Refrigerator thermostat

Part #6930JB1007C

$23.19 | 
21% OFF Phone Price : $29.19
In Stock
Refrigerator Stopper 4620JA3009A

#314A

All parts diagram

Refrigerator stopper

Part #4620JA3009A

This item is not returnable
$8.97
In Stock
Rubber-s J 4J03020A

#328A

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Rubber-s j

Part #4J03020A

Replaced by #4J03020A

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Manufacturer substitution
This part replaces 4J03020A. Substitute parts can look different from the original.
This item is not returnable
$6.98 | 
13% OFF Phone Price : $7.98
In Stock
Ice Bank Cover 3550JA1077A

#147C

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Ice bank cover

Part #3550JA1077A

Replaced by #3550JA1077A

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Manufacturer substitution
This part replaces 3550JA1077A. Substitute parts can look different from the original.
$26.20
In Stock
Refrigerator Motor Assembly 4681JB1011P

#404A

All parts diagram

Refrigerator motor assembly

Part #4681JB1011P

Replaced by #4680JB1033B

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Manufacturer substitution
This part replaces 4681JB1011P. Substitute parts can look different from the original.
$64.90 | 
8% OFF Phone Price : $70.90
In Stock
Refrigerator Push Switch 6600JB1002K

#406B

All parts diagram

Refrigerator push switch

Part #6600JB1002K

Replaced by #6600JB1002K

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Manufacturer substitution
This part replaces 6600JB1002K. Substitute parts can look different from the original.
$14.29
In Stock

Most common symptoms to help you fix your refrigerators

Choose a symptom to see related refrigerator repairs.

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Why won't my refrigerator run?

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

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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, freeze…

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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 tubin…

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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 o…

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Why isn't my refrigerator cooling well?

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

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Why won't my refrigerator cool at all?

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

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Why is my freezer not cold enough?

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

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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, cl…

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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.

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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…

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Repair difficulty
Time required
 15 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.…

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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…

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Repair difficulty
Time required
 30 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.

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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.…

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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.…

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How to change the water filter in an LG refrigerator

How to change the water filter in an LG refrigerator

Get tips and advice on replacing the water filter in your LG refrigerator.…

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