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Bosch
Washer

Model # WAT28400UC/20 Official Bosch washer

Here are the diagrams and repair parts for Official Bosch WAT28400UC-20 washer, 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 112 parts  |
Washer Drain Pump (replaces 00144844, 00144977) 00145753
#422

Dispenser tray/outlet pipe parts diagram

Washer drain pump (replaces 00144844, 00144977)

Part #00145753

$149.02 | 
7% OFF Phone Price : $161.02
In Stock
Washer Shock Absorber 00742719
#319

Oscillating system parts diagram

Washer shock absorber

Part #00742719

$64.49 | 
9% OFF Phone Price : $70.49
In Stock
Washer Door Boot 00680768
#313

Oscillating system parts diagram

Washer door boot

Part #00680768

Replaced by #00772658

?
Manufacturer substitution
This part replaces 00680768. Substitute parts can look different from the original.
$77.49 | 
7% OFF Phone Price : $83.49
In Stock
Washer Door Lock 00635514
#211

Control panel parts diagram

Washer door lock

Part #00635514

Replaced by #10000916

?
Manufacturer substitution
This part replaces 00635514. Substitute parts can look different from the original.
$54.79 | 
10% OFF Phone Price : $60.79
In Stock
Outlet Hose 11023391
#414

Dispenser tray/outlet pipe parts diagram

Outlet hose

Part #11023391

$79.98
In Stock
Washer Dispenser Valve 00635399
#451

Dispenser tray/outlet pipe parts diagram

Washer dispenser valve

Part #00635399

$90.13 | 
6% OFF Phone Price : $96.13
In Stock
Spring 00629930
#311

Oscillating system parts diagram

Spring

Part #00629930

This item is not returnable
$4.97
In Stock
Knob 00633523
#117

Cabinet parts diagram

Knob

Part #00633523

$62.69
In Stock
Washer Drive Belt 00439490
#303

Oscillating system parts diagram

Washer drive belt

Part #00439490

$40.28 | 
13% OFF Phone Price : $46.28
In Stock
Hose 12008201
#450

Dispenser tray/outlet pipe parts diagram

Hose

Part #12008201

Replaced by #00493766

?
Manufacturer substitution
This part replaces 12008201. Substitute parts can look different from the original.
$43.98
In Stock

Most common symptoms to help you fix your washers

Choose a symptom to see related washer repairs.

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Why is my washing machine noisy or shaking?

Main causes: unbalanced load, loose spanner nut, worn drive block, broken shock absorber or suspension spring, debris in…

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Why won't my washing machine start?

Main causes: bad lid switch or door lock, bad timer or electronic control board, wiring failure, bad water inlet valve a…

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Why won't my washing machine drain?

Main causes: clogged drain hose, house drain clogged, bad drain pump, water-level pressure switch failure, bad control b…

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Why does my washing machine overfill?

Main causes: leaky water inlet valve, faulty water-level pressure switch, bad electronic control board…

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Why is the water in my washing machine the wrong temperature?

Main causes: water heater failure, bad water temperature switch, faulty control board, bad water valve, faulty water tem…

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Why doesn't my washing machine work at all?

Main causes: lack of electrical power, wiring failure, bad power cord, electronic control board failure, bad user interf…

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Why won't my washing machine fill?

Main causes: no water supply, bad water valves, water-level pressure switch failure, control system failure, bad door lo…

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Why won't my washing machine agitate or spin?

Main causes: worn agitator dogs, bad clutch, broken motor coupler, shifter assembly failure, broken door lock, suspensio…

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Why your washing machine won't finish its cycle

Main causes: broken lid switch or lid lock, bad pressure switch, broken shifter assembly, faulty control system…

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Effective articles & videos to help repair your washers

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

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How to use your washing machine efficiently

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