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Whirlpool
Dehumidifier

Model # D401 Official Whirlpool dehumidifier

Here are the diagrams and repair parts for Official Whirlpool D401 dehumidifier, as well as links to manuals and error code tables, if available.

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

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 69 parts  |
Grille 998832
#7

Cabinet parts diagram

Grille

Part #998832

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

Compressor 876684
#25

Unit parts diagram

Compressor

Part #876684

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

Spring 998730
#19

Air flow and control parts diagram

Spring

Part #998730

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

Overload 876686
#28

Unit parts diagram

Overload

Part #876686

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

Control 1155109
#7

Air flow and control parts diagram

Control

Part #1155109

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

Grommet 1156748
#20

Unit parts diagram

Grommet

Part #1156748

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

Seal 998867
#16

Unit parts diagram

Seal

Part #998867

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

Valve Kit 978028
#12I

Cabinet parts diagram

Valve kit

Part #978028

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

Use And Care Guide LIT1160157

#NI

All parts diagram

Use and care guide

Part #LIT1160157

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

Tape 505168
#12E

Cabinet parts diagram

Tape

Part #505168

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

Most common symptoms to help you fix your dehumidifiers

Choose a symptom to see related dehumidifier repairs.

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Why doesn't my dehumidifier remove moisture?

Main causes: dirty air filter, clogged grill, dehumidifier placed too close to the wall, dehumidifier too small for the …

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Why won't my dehumidifier turn on?

Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure…

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Why does my dehumidifier run all the time?

Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, b…

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Why isn't my dehumidifier's remote monitor working?

Main causes: weak or dead batteries, out of range, radio frequency interference…

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Why is there frost on my dehumidifier's coil?

Main causes: room temperature below 65 degrees Fahrenheit, control system failure…

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Why isn't my dehumidifier draining?

Main causes: clogged drain hose, drain hose not properly connected…

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Why is my dehumidifier noisy?

Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor…

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Why won't my dehumidifier run?

Main causes: collection bucket not installed, collection bucket full of water…

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Why does my dehumidifier leak water?

Main causes: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection…

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Most common repair guides to help fix your dehumidifiers

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

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How to replace a dehumidifier electronic control board

How to replace a dehumidifier electronic control board

If the dehumidifier won’t power up because the control board has failed, use the steps in this repair guide to replace t…

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Repair difficulty
Time required
 45 minutes or less
How to replace a dehumidifier user interface control board

How to replace a dehumidifier user interface control board

If the dehumidifier doesn’t respond when you try to set it, follow these steps to replace it.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a dehumidifier sensor assembly

How to replace a dehumidifier sensor assembly

If the humidifier sensor doesn’t properly detect humidity or evaporator temperature, install a new sensor assembly, foll…

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Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your dehumidifiers

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

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How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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How does a dehumidifier work?

How does a dehumidifier work?

Discover how a dehumidifier works.…

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