General

• Allergiesgoldenrod, sinus problems image by feisty from Fotolia.com
  
  Dehumidifiers remove humidity from the air. Often, removing moisture assists in allergy control. To remove moisture from the air means to lower the temperature in a room. Dehumidifiers work according to what temperature they are set to deliver to any room. If you want a room to be 75 degrees F, you set the dehumidifier to 75 degrees F. The unit will stop working when the temperature has been attained. Therefore, check the temperature on your dehumidifier if you believe it is not lowering the temperature properly. If your unit does not turn on at all, check the power in the plug and make sure you are properly turning your unit to the "on" position. Most models will not go lower than 65 degrees F. If your dehumidifier froze, the compressor will shut off automatically. Allow the ice to melt before emptying the tank and restart the dehumidifier.
  
  

Leave the big repair to a professional.

• Check the fan and the coil of the unit.power sockets image by Aleksandr Lobanov from Fotolia.com
  
  Unless you are licensed and qualified professional, do not try to repair a dehumidifier by yourself. If your unit is running constantly yet there is no water in the tank, try lowering the temperature control. If the problem persists, there may be a problem within the refrigeration system. You may need to pull the filter and clean it. Also try wiping off the unit itself. When the water tank is full, the unit will shut off and will not run until the tank is emptied. The dehumidifier shuts off by a safety switch in the back of the unit. If the switch is not working properly, you may try manually pressing the button or slightly bending the switch.
  
  

Motor

• MotorDetailansicht Hybrid Motor image by 3rdTwin from Fotolia.com
  
  If the fan motor is damaged or will not work, no cool air will be coming out of the dehumidifier. The unit, however, may still run. You may need to replace the motor. If the coils in the back of the dehumidifier constantly freeze, try turning off the unit for an hour or re-locating the unit to a higher position to allow the room to heat up. If your water tank is constantly full and you are emptying it on a daily basis, you may have a water leak somewhere in the room with the dehumidifier.