Whirlpool
Dehumidifier

Model #AD50J1 Official Whirlpool dehumidifier

Here are the diagrams and repair parts for Whirlpool AD50J1 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Showing 10 of 64 parts

Appliance Screw#27

Air flow and controls Diagram

Refrigerator screw

Part #1157158
Replaced by #WP489069
?
Manufacturer substitution
This part replaces 1157158. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.39 | 
19% OFF 
Phone Price: $5.39
Appliance Screw

See All Related Diagrams

Screw, 8 x 1

Part #488480
Replaced by #WP489069
?
Manufacturer substitution
This part replaces 488480. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.39 | 
19% OFF 
Phone Price: $5.39
Range Screw#10

Cabinet Diagram

Screw

Part #1168744
Replaced by #WP3196557
?
Manufacturer substitution
This part replaces 1168744. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.39 | 
19% OFF 
Phone Price: $5.39
Refrigerator Service Valve

#NI

All parts Diagram

Valve kit

Part #978026
Replaced by #978026
?
Manufacturer substitution
This part replaces 978026. Substitute parts can look different from the original.
In Stock
$34.19 | 
13% OFF 
Phone Price: $39.19
Dehumidifier Humidistat#2

Air flow and controls Diagram

Humidistat

Part #1168670
Replaced by #WP1168670
?
Manufacturer substitution
This part replaces 1168670. Substitute parts can look different from the original.
In Stock
$56.19 | 
8% OFF 
Phone Price: $61.19
Float#6

Cabinet Diagram

Float

Part #1172075
Replaced by #WP1172075
?
Manufacturer substitution
This part replaces 1172075. Substitute parts can look different from the original.
This item is not returnable
In Stock
$3.95 | 
20% OFF 
Phone Price: $4.95
Refrigerator Service Valve, 3/4-in

#NI

All parts Diagram

Valve kit

Part #978030
Replaced by #978030
?
Manufacturer substitution
This part replaces 978030. Substitute parts can look different from the original.
In Stock
$40.49 | 
11% OFF 
Phone Price: $45.49
Dehumidifier Fan Motor#10

Air flow and controls Diagram

Fan motor

Part #1183426
Replaced by #4389130
?
Manufacturer substitution
This part replaces 1183426. Substitute parts can look different from the original.
In Stock
$191.18
Nut#17

Air flow and controls Diagram

Nut

Part #488130

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

Appliance Cable Tie#25

Air flow and controls Diagram

Cable tie

Part #857547
Replaced by #WPW10339879
?
Manufacturer substitution
This part replaces 857547. Substitute parts can look different from the original.
This item is not returnable
In Stock
$4.37 | 
19% OFF 
Phone Price: $5.37

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.