How to Clean a Dehumidifier: Filter, Coils and Bucket
To clean a dehumidifier, unplug it and clean the bucket, filter and accessible intake areas as the manual directs. Wash only parts approved for rinsing, and let them dry fully before restarting.
On this page (8 sections)
- How do you clean a dehumidifier step by step?
- How do you clean a dehumidifier filter?
- How do you wash the bucket?
- How do you clean dehumidifier coils and the air intake?
- How often should you clean a dehumidifier?
- What should you avoid when cleaning a dehumidifier?
- When should you get help with a dirty dehumidifier?
- What is the safest dehumidifier cleaning routine?
To clean a dehumidifier, unplug it and clean the bucket, filter and accessible intake areas as the manual directs. Wash only parts approved for rinsing, and let them dry fully before restarting.
The manual for your model explains which parts can be removed, rinsed or brushed. Work only on accessible parts, and don't open the cabinet or use a cleaner the manual doesn't allow.
How do you clean a dehumidifier step by step?
Start by unplugging the unit, then clean removable parts and accessible surfaces as directed. Follow the model's manual for access points, cleaning methods and drying instructions.
- Turn off the dehumidifier and unplug it from the outlet.
- Remove the water bucket and filter as the manual directs.
- Empty and clean the bucket, rinsing it only if the instructions allow.
- Clean the filter using the method specified for that model.
- Gently remove loose dust from the intake and accessible coils if permitted.
- Let washed parts dry fully, put them back and reconnect the unit.
Keep water away from the plug, cord, controls and motor area. If a component won't come out easily, stop and check the manual instead of forcing it.
How do you clean a dehumidifier filter?
Clean the filter only in the way the manual allows. Some filters can be rinsed, while others need another cleaning method or replacement.
If the filter is washable, remove loose dust first if the instructions permit. Rinse it as directed and let it dry completely before reinstalling it.
Don't run the unit with a damp filter or without its required filter. The Midea Cube 20 Pint Dehumidifier has a washable filter for routine care.
Dust buildup can restrict airflow. If the filter looks clean but the dehumidifier still isn't collecting water, see why a dehumidifier may stop collecting water.
How do you wash the bucket?
Empty and clean the bucket using the method your manual allows, then dry it before replacing it. Regular cleaning helps remove residue that can build up where collected water sits.
Use a soft cloth or sponge on accessible surfaces if permitted. Avoid abrasive tools and unapproved cleaners, and keep water away from electrical areas.
Check the bucket and its seating area for damage or residue. If the unit signals that the bucket is full when it isn't, confirm that it's fitted correctly before restarting.
Collected water isn't drinking water. Read whether you can drink dehumidifier water before deciding how to handle it.
How do you clean dehumidifier coils and the air intake?
Clear loose dust gently from accessible intake areas and coils, using only tools and methods the manual permits. Coil fins can bend, so don't press hard or scrape them.
Unplug the unit before cleaning. A soft brush or vacuum attachment may suit loose dust if the manual allows it, but don't spray water or cleaner into the cabinet.
Stop if the coils are hard to reach, heavily coated or surrounded by parts you can't safely remove. Contact the manufacturer for the approved service method rather than opening sealed sections.
How do you clean a dehumidifier drain hose?
Check for blockage or kinks if drainage slows, and clean the hose only as the manual directs. Turn off and unplug the unit before disconnecting it.
A compatible hose can carry water to a drain when the unit supports continuous drainage. It doesn't replace routine filter care or cleaning any bucket that remains in use.
For the 5 ft Drain Hose, confirm the selected length before ordering because the supplied length information conflicts. Match its connector to your unit's outlet rather than assuming it fits every dehumidifier.
The 12 ft Drain Hose offers a longer route to a drain when its connector and the unit's drainage setup are compatible. It uses rubber hose material and a nickel-plated brass connector with a rubber seal.
For gravity drainage, follow the manual's slope requirements and avoid kinks or raised sections that trap water. Check the connection and drain after restarting to confirm that water flows without leaking.
For placement ideas, see where to put a dehumidifier in a basement.
How often should you clean a dehumidifier?
Inspect the filter and bucket regularly, and follow the model's cleaning schedule. Dust and frequent use may mean you need to check them more often.
Clean the intake and accessible surfaces when you see dust collecting. Keep the unit's openings clear, and avoid placing it where it can pull in lint or debris.
If you use continuous drainage, check the hose and outlet for kinks or blockage. Draining through a hose can reduce bucket emptying, but you still need to inspect and clean the unit.
What should you avoid when cleaning a dehumidifier?
Avoid cleaning while plugged in, spraying liquid inside, bending coil fins or forcing parts loose. These actions can damage the appliance or expose electrical parts to moisture.
Avoid abrasive pads and unapproved solvents. Don't restart the dehumidifier until washed parts are dry and the bucket and filter are correctly seated.
If you notice ice, first turn the unit off and check the instructions. Our guide to why a dehumidifier keeps freezing up covers common causes and next steps.
When should you get help with a dirty dehumidifier?
Contact the manufacturer if dirt is inside a sealed area, the coils are difficult to access or cleaning doesn't solve an ongoing problem. Don't remove cabinet panels unless the manual specifically provides a user maintenance procedure.
Stop using the unit if you see damaged wiring, a cracked bucket or water near electrical parts. If the plug or outlet is wet, avoid touching it and seek qualified help to disconnect power safely.
Consult the manual or manufacturer for repair advice. If you're also reviewing daily use, how much it costs to run a dehumidifier explains the separate question of energy costs.
What is the safest dehumidifier cleaning routine?
The safest routine is manual-guided cleaning with the power unplugged. Clean only accessible parts, rinse only those approved for washing and let washed parts dry before restarting.
Use the filter care method your model requires, and choose a drain hose only when its connector, length and route suit your setup. Check for kinks and leaks after reconnecting it.
If the unit still won't collect water after cleaning, use the troubleshooting guide for a dehumidifier that isn't collecting water and follow the manufacturer's service advice.
Frequently asked questions
How often should you clean a dehumidifier?
Check the filter, bucket and air intake regularly, then clean them as often as the manual recommends. A dusty room or frequent use may call for more frequent checks, and you should unplug the unit before cleaning or removing parts.
Can you wash a dehumidifier filter?
Wash a dehumidifier filter only if the model's manual allows it, since some filters need dry cleaning or replacement. For a washable filter, follow the rinsing instructions and let it dry completely before putting it back, then check that it is seated correctly.
Can you clean dehumidifier coils with water?
Don't spray water on the coils unless the manual specifically allows it. With the unit unplugged, gently clear loose dust using a soft brush or vacuum attachment only if permitted, and contact the manufacturer if buildup remains or the coils are difficult to reach.
Why does a dehumidifier smell after cleaning?
A lingering smell can come from residue or moisture left in the bucket, filter or other accessible parts. Unplug the unit and clean and dry removable parts as directed, then contact the manufacturer if the odor persists or you see suspected mold inside sealed areas.
