Dehumidifier: Why is my dehumidifier noisy?
If the dehumidifier's fan motor or compressor mounting brackets or screws are loose, the fan or compressor can vibrate and male noise. Unplug the dehumidifier and tighten any loose screw on the components. If all the screws and brackets are tight, you might need to replace the fan or compressor.
THESE REPAIRS MAY HELP SOLVE YOUR DEHUMIDIFIER PROBLEM
Replace the dehumidifier compressor
The compressor is a pump that compresses the refrigerant that runs through the sealed system in the dehumidifier. If the compressor doesn't run when activated, have a refrigerator service technician replace it; by law, an EPA-licensed technician must complete this repair because it involves refrigerant.
Dehumidifier compressor
Replace the dehumidifier fan motor
The fan motor rotates the fan blade that pulls air in through the front of the evaporator and pushes air out through the back of the condenser coil. The moisture in the air pulled in through the evaporator condenses on the evaporator coil. The air pushed out through the condenser causes the refrigerant to condense to a liquid. Replace the fan motor if it doesn't run when activated.
Dehumidifier fan motor
Most common symptoms to help you fix your 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, b…
Main causes: clogged drain hose, drain hose not properly connected…
Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure…
Main causes: room temperature below 65 degrees Fahrenheit, control system failure…
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 …
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: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection…
Most common repair guides to help fix your 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, foll…
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.…
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 t…
Effective articles & videos to help repair your dehumidifiers
Use the advice and tips in these articles to get the most out of your dehumidifier.
Learn some of the most common symbols found in a wiring diagram and what they mean.…
Learn how to repair broken, frayed or damaged wires in your appliances.…
Learn how to use a multimeter to check for wiring problems in an appliance that's not working…