How long do dehumidifiers last?
Most dehumidifiers last 5 to 10 years. Dehumidifiers are commonly given about 5 to 10 years, depending on use and how often the filter and coils are cleaned.
A dehumidifier in a basement runs hard and is easy to forget. Keeping indoor humidity low is a mold-prevention matter, and the EPA suggests keeping it below 60 percent, ideally 30 to 50 percent.
Typical lifespan: 5 to 10 years
Dehumidifiers are commonly given about 5 to 10 years, depending on use and how often the filter and coils are cleaned.
Dehumidifier maintenance checklist by season
Spring
Clean the filter and the coils, and empty and wash the bucket. Check the drain hose for kinks if you use continuous drain.
Summer
Check the humidity level on a hygrometer, not just the unit's dial. Empty the bucket daily, or confirm the drain is flowing.
Fall
Look at the unit for mold on the bucket or filter. Clean it before heavy use returns.
Winter
Many units stop working or ice up at low temperatures. If the room is cold, confirm the model works in it, or store the unit.
Signs your dehumidifier needs replacing
- It runs but does not collect water, or the room stays humid.
- The coil ices over or the fan does not run.
- A refrigerant smell or an oily residue.
- A loud compressor or a unit that cycles constantly.
Typical dehumidifier warranty
A limited one-year warranty is the common baseline, with a longer sealed-system term of up to five years on some models. Terms vary.
An appliance warranty tracker keeps your dehumidifier's coverage dates and receipt in one place.
What to keep for a dehumidifier
- The receipt
- Model and serial number from the label on the back or side
- The manual with the filter and drain details
- A note of the room humidity target
Common questions
How long do dehumidifiers last?
Most dehumidifiers last 5 to 10 years. Dehumidifiers are commonly given about 5 to 10 years, depending on use and how often the filter and coils are cleaned.
What humidity level should I aim for?
The EPA says to keep indoor humidity below 60 percent, ideally between 30 and 50 percent, to limit mold.
Why does my dehumidifier ice up?
Cold room temperature, a dirty filter or low airflow are common causes. Clean the filter and, if the room is cold, check the minimum operating temperature in the manual.
How do I maintain a dehumidifier?
Follow your manual first. Each season: spring, clean the filter and the coils, and empty and wash the bucket. Check the drain hose for kinks if you use continuous drain. Fall, look at the unit for mold on the bucket or filter. Clean it before heavy use returns.