Q. How do I stop my dehumidifier from freezing up?
Blower Wheel or Fan Blade For proper operation, a dehumidifier needs to have an adequate amount of air blowing across the evaporator and condenser coils to prevent frost or ice buildup. If you feel little or no air coming through the grille area and the filter is clean, then remove the cover and check the fan area.
Q. Will a dehumidifier work below freezing?
Ordinarily, a dehumidifier will not operate satisfactorily at temperatures below 41 degrees Fahrenheit or under extremely low humidity conditions. At temperatures below 41 degrees the evaporator coils may freeze. This could make it necessary to defrost the coils as often as once per hour.
Q. Should a dehumidifier have frost?
A dehumidifier should not be operated when the coils are totally frosted over. This condition can lead to permanent damage of the compressor (the heart of the unit) in most cases making it uneconomical to repair.
Q. Why is my dehumidifier freezing?
The most common cause why dehumidifiers freeze up is because the room is simply too cold. Even if the machine can operate at a low temperature, it is typically cap at 65°F degrees. Running below the recommended temperature will cause ice to build up on the condenser coils.
Q. How cold should a dehumidifier coil be?
65 degrees Fahrenheit
Frost or ice can build up on the evaporator coil if the unit has recently been turned on or if the room is too cold. The room temperature should be at least 65 degrees Fahrenheit for the dehumidifier to operate properly.
Q. How cold will a dehumidifier work?
Most dehumidifiers should not be operated in temperatures below 60° F, since the moisture removed from the indoor air can freeze when it condenses on the cooling coils, which can damage the unit.
Q. Should dehumidifier coils be cold?
It’s crucial to not use a dehumidifier in a room that’s cooler than 65 degrees. A humidistat in the unit can measure the room’s humidity, allowing the machine to work properly. If something is askew, like the coils not getting cold, it won’t take the moisture out of the air.
