January 1, 2014

How to replace a dehumidifier user interface control board

By Lyle Weischwill
How to replace a dehumidifier user interface control board

This DIY repair guide explains how to replace the user interface control board on a dehumidifier. The user interface control board lets you program the dehumidifier. If the user interface won't respond when you push the buttons, replace it with the manufacturer-approved replacement part.

This basic procedure works for Kenmore, LG and DeLonghi dehumidifiers.

Quick links
Tools required
Phillips screwdriver
Work gloves
Repair difficulty
Time required
30 minutes or less
Repair difficulty
Time required
30 minutes or less

Instructions

01.

Disconnect power

Unplug the power cord from the wall outlet.

02.

Remove the collection bucket

Pull the water collection bucket out of the front of the dehumidifier case.

Remove the collection bucket.

Remove the collection bucket.

03.

Remove the air filter

Pull the air filter out of the bottom of the front grille.

Tip: Clean the air filter if it is dirty.
Remove the air filter.

Remove the air filter.

04.

Remove the front grille

Remove the 2 screws at the bottom of the front grille that secure it to the frame.

Lift the front grille off of the front of the grille. The user interface control board wires are still attached.

Remove the screws.

Remove the screws.

Pull the front grille up and off.

Pull the front grille up and off.

05.

Remove the user interface control board

Remove the mounting screws that attach the user interface control board to the control panel.

Lift the user interface control board out of the front grille.

Unplug the user interface wire harness connection and discard the user interface control board.

Remove the mounting screws.

Remove the mounting screws.

Lift the user interface control board out of the grille.

Lift the user interface control board out of the grille.

Unplug the wire harness.

Unplug the wire harness.

06.

Install the new user interface control board

Plug the wire harness into the new user interface control board.

Position the user interface control board in the control panel and secure it with the mounting screws.

07.

Reinstall the front grille

Position the front grille on the dehumidifier and secure it with the mounting screws.

08.

Replace the filter and collection bucket

Push the filter back into the front grille.

Reinstall the collection bucket in the front of the dehumidifier.

09.

Restore power

Plug the dehumidifier back into the wall outlet.

Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.
Symptoms common to all dehumidifiers

Choose a symptom to see related dehumidifier repairs.

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

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

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