January 1, 2014

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 dehumidifier part.

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

Quick links

Instructions

Tools required

Phillips screwdriver

Work gloves

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.
PHOTO: 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.
PHOTO: 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.
PHOTO: Remove the screws.
PHOTO: 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.
PHOTO: Remove the mounting screws.
PHOTO: Lift the user interface control board out of the grille.
PHOTO: 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.

April 19, 2023

Why won't my dehumidifier turn on?

By Lyle Weischwill

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

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Why won't my dehumidifier run?

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

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Why is there frost on my dehumidifier's coil?

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

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Why isn't my dehumidifier draining?

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

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Why does my dehumidifier leak water?

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

April 19, 2023

Why is my dehumidifier noisy?

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

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Why does my dehumidifier run all the time?

By Lyle Weischwill

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

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

By Lyle Weischwill

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

April 19, 2023

Why doesn't my dehumidifier remove moisture?

By Lyle Weischwill

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.

January 1, 2014

How to replace a dehumidifier sensor assembly

By Lyle Weischwill

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

January 1, 2014