What size dehumidifier do I need?
Dehumidifiers are rated by how many pints of water they can remove from the air during a 24-hour period. To make sure you choose the right size of dehumidifier, consider two important things: how humid is the area you plan to dehumidify and how large is it?
First, see which of these descriptions best suits the area you want to dehumidify.
Moderately damp: Air sometimes feels damp and area has light, musty odor.
Very damp: Air always feels damp and has a musty odor.
Wet: Area feels and smells wet. Walls or floors sweat.
Extremely wet: Floors and walls are wet.
Then use the chart below to determine what size of dehumidifier would work best for you.
| How damp is your space? | 2,000 or less sq.ft. | 2,000–2,500 sq.ft. | 2,500–3,500 sq.ft. | 3,500 or more sq.ft. |
|---|---|---|---|---|
| Moderately damp | 25 pint | 30 pint | 35 pint | 40 pint |
| Very damp | 30 pint | 35 pint | 45 pint | 50 pint |
| Wet | 35 pint | 40 pint | 50 pint | 60 pint |
| Extremely wet | 40 pint | 45 pint | 60 pint | 70 pint |
Most common symptoms to help you fix your dehumidifiers
Choose a symptom to see related dehumidifier repairs.
Main causes: dirty air filter, clogged grill, dehumidifier placed too close to the wall, dehumidifier too small for the ...
Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure...
Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, b...
Main causes: weak or dead batteries, out of range, radio frequency interference...
Main causes: room temperature below 65 degrees Fahrenheit, control system failure...
Main causes: clogged drain hose, drain hose not properly connected...
Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor...
Main causes: collection bucket not installed, collection bucket full of water...
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 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...
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 sensor assembly
If the humidifier sensor doesn’t properly detect humidity or evaporator temperature, install a new sensor assembly, foll...
Effective articles & videos to help repair your dehumidifiers
Use the advice and tips in these articles to get the most out of your dehumidifier.
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Learn how to use a multimeter to check for wiring problems in an appliance that's not working...
Discover how a dehumidifier works....