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Bosch
Side-By-Side Refrigerator

Model # B20CS81SNS/02 Official Bosch refrigerator

Here are the diagrams and repair parts for Official Bosch B20CS81SNS-02 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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Showing 10 of 152 parts  |
Refrigerator Filter 601057
#527

Fan/drawer diagram

Refrigerator filter

Part #601057

Replaced by #00601057

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Manufacturer substitution
This part replaces 601057. Substitute parts can look different from the original.
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$26.69 | 
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Refrigerator Door Bin 660362
#307

Refrigerator door diagram

Refrigerator door bin

Part #660362

Replaced by #00660362

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Manufacturer substitution
This part replaces 660362. Substitute parts can look different from the original.
$46.39 | 
11% OFF Phone Price : $52.39
In Stock
Refrigerator Fan 497841
#502

Fan/drawer diagram

Refrigerator fan

Part #497841

Replaced by #00497841

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Manufacturer substitution
This part replaces 497841. Substitute parts can look different from the original.
$88.51 | 
6% OFF Phone Price : $94.51
In Stock
Refrigerator Ice Maker Assembly 497882
#428

Evaporator/icemaker diagram

Refrigerator ice maker assembly

Part #497882

Replaced by #00497882

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Manufacturer substitution
This part replaces 497882. Substitute parts can look different from the original.
$248.74 | 
5% OFF Phone Price : $260.74
In Stock
Refrigerator Drawer Slide Rail 445985
#442

Evaporator/icemaker diagram

Refrigerator drawer slide rail

Part #445985

Replaced by #00445985

?
Manufacturer substitution
This part replaces 445985. Substitute parts can look different from the original.
$23.49
In Stock
Refrigerator Electronic Control Board 640603
#107

Cabinet diagram

Refrigerator electronic control board

Part #640603

The manufacturer no longer makes this part, and there's no substitute part

Refrigerator Drawer Slide Rail 449707
#518

Fan/drawer diagram

Refrigerator drawer slide rail

Part #449707

Replaced by #00445985

?
Manufacturer substitution
This part replaces 449707. Substitute parts can look different from the original.
$23.49
In Stock
Refrigerator Door Bin, Lower 446136
#303

Refrigerator door diagram

Refrigerator door bin, lower

Part #446136

Replaced by #00446136

?
Manufacturer substitution
This part replaces 446136. Substitute parts can look different from the original.
$83.99 | 
7% OFF Phone Price : $89.99
In Stock
Refrigerator Fuse 601062
#405

Evaporator/icemaker diagram

Refrigerator fuse

Part #601062

Replaced by #00620925

?
Manufacturer substitution
This part replaces 601062. Substitute parts can look different from the original.
$32.67
In Stock
Air Channel 497849
#503

Fan/drawer diagram

Air channel

Part #497849

Replaced by #00497849

?
Manufacturer substitution
This part replaces 497849. Substitute parts can look different from the original.
$168.49 | 
7% OFF Phone Price : $180.49
In Stock

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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 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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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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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 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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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 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 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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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 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 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…

Read more
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

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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

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How to change the water filter in an LG refrigerator

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