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Speed Queen
Washer

Model # DA3780 Official Speed Queen washing machine

Here are the diagrams and repair parts for Official Speed Queen DA3780 washing machine, 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.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 435 parts  |
Hose Clamp 22294
Hose clamp

Part #22294

Replaced by #WP596669

?
Manufacturer substitution
This part replaces 22294. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.37 | 
19% OFF Phone Price : $5.37
In Stock
Screw 52150
Screw

Part #52150

Replaced by #WP489464

?
Manufacturer substitution
This part replaces 52150. Substitute parts can look different from the original.
This item is not returnable
$6.60 | 
13% OFF Phone Price : $7.60
In Stock
Foot 20409
#22

Boot, chassis and drain tub diagram

Foot

Part #20409

Replaced by #22003428

?
Manufacturer substitution
This part replaces 20409. Substitute parts can look different from the original.
This item is not returnable
$11.39 | 
15% OFF Phone Price : $13.39
In Stock
Speed Queen Screen Mixing Valve 24122
#15

Mixing valve assemblies diagram

Speed queen screen mixing valve

Part #24122

$10.71
In Stock
Speed Queen Washer 20290
Speed queen washer

Part #20290

This item is not returnable
$2.16
In Stock
Screw 20260
#4

Agitator post and spin tub diagram

Screw

Part #20260

This item is not returnable
$3.51
In Stock
Hose 25112
#18

Boot, chassis and drain tub diagram

Hose

Part #25112

$24.71
In Stock
Speed Queen Nut 20274
Speed queen nut

Part #20274

This item is not returnable
$2.83
In Stock
Speed Queen Nut 21899
#21

Boot, chassis and drain tub diagram

Speed queen nut

Part #21899

This item is not returnable
$3.86
In Stock
Brake Disk 24599
#17

Main bearing assembly diagram

Brake disk

Part #24599

$24.40
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…

Read more

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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