Amana
Dehumidifier

Model #DH40-P9966604R Official Amana dehumidifier

Here are the diagrams and repair parts for Amana DH40-P9966604R dehumidifier, as well as links to manuals and error code tables, if available.

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

Showing 10 of 74 parts

Condenser#22B

Unit parts Diagram

Condenser

Part #R0171004

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

MUFFLER AND TUBE ASSEMBLY

#NI

All parts Diagram

Muffler and tube assembly

Part #R0156682

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

SUPPORT, INNER#23

Unit parts Diagram

Support, inner

Part #R0176027

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

Light#4

Cabinet and front grille Diagram

Light

Part #R0165014

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

Evaporator#25B

Unit parts Diagram

Evaporator

Part #R0170029

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

Overload#6

Compressor Diagram

Overload

Part #R0162006

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

Service Cord

See All Related Diagrams

Service cord

Part #R0164246

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

Nut#3

Compressor Diagram

Nut

Part #R0189044

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

On Off Knob#7

Cabinet and front grille Diagram

On off knob

Part #R0181125

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

Clamp#9A

Compressor Diagram

Clamp

Part #R0191090

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

Symptoms common to all dehumidifiers

Choose a symptom to see related dehumidifier repairs.

Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, bad compressor
Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure
Main causes: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection
Main causes: collection bucket not installed, collection bucket full of water
Main causes: room temperature below 65 degrees Fahrenheit, control system failure
Main causes: clogged drain hose, drain hose not properly connected
Main causes: weak or dead batteries, out of range, radio frequency interference
Main causes: dirty air filter, clogged grill, dehumidifier placed too close to the wall, dehumidifier too small for the space
Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor

Repair guides common to all dehumidifiers

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

January 1, 2014
By Lyle Weischwill
How to replace a dehumidifier sensor assembly

If the humidifier sensor doesn’t properly detect humidity or evaporator temperature, install a new sensor assembly, following these steps.

Repair difficulty
Time required
 45 minutes or less
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.

Repair difficulty
Time required
 30 minutes or less
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 the electronic control board and fix your dehumidifier.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all dehumidifiers

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

August 18, 2021

Using a wiring schematic to trace a current video

By Lyle Weischwill

Find out what’s wrong with your appliance by following a circuit.

January 6, 2015

How to stop dehumidifier leaks

By Lyle Weischwill

Here are some tips to stop a dehumidifier from leaking water.

December 16, 2014

How to clean a dehumidifier

By Lyle Weischwill

How to clean a dehumidifier for more efficient operation.