April 19, 2023

Dehumidifier: Why won't my dehumidifier run?

If the collection bucket is in the wrong position or full of water, the dehumidifier shuts off and won't turn back on. Check the bucket position and empty the bucket if it's full.

dehumidifier

THESE REPAIRS MAY HELP SOLVE YOUR DEHUMIDIFIER PROBLEM

JC-DEH-Replace-the-dehumidifier-user-interface-control-board

Replace the dehumidifier user interface control board

The user interface control board in the control panel houses the selection buttons you push. A wire harness connects the user interface control board to the control board. If the selection buttons don't respond when you push them, replace the user interface control board.

Dehumidifier user interface control board

Find the required part specific to your product.

RG-DEH-Replace-Dehumidifier-User-Interface-Control-Board-Intro-Image
January 01, 2014

How to replace a dehumidifier user interface control board

If the buttons on your dehumidifier don't work, the user interface control board could be the issue. This DIY repair guide shows how to replace a dehumidifier user interface control board in less than 30 minutes.

Repair difficulty
Time required
 30 minutes or less
JC-DEH-Replace-the-dehumidifier-electronic-control-board

Replace the dehumidifier electronic control board

The electronic control board regulates the dehumidifier's compressor and fan motor. If the electronic control board doesn't activate the compressor and fan properly, replace the electronic control board.

Dehumidifier electronic control board

Find the required part specific to your product.

RG-DEH-Replace-Dehumidifier-Electronic-Control-Board-Intro-Image
January 01, 2014

How to replace a dehumidifier electronic control board

If your dehumidifier won't turn on, the electronic control board might be to blame. The DIY repair guide shows how to replace a dehumidifer electronic control board.

Repair difficulty
Time required
 45 minutes or less

Symptoms common to all dehumidifiers

Choose a symptom to see related dehumidifier repairs.

Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure
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: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection
Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor
Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, bad compressor
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

Repair guides common to all dehumidifiers

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

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

Using a wiring schematic to trace a current video

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

August 17, 2021

How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.

December 16, 2014

How to clean a dehumidifier

How to clean a dehumidifier

How to clean a dehumidifier for more efficient operation.