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Dehumidifier Maintenance Guide

Dehumidifier Maintenance Guide

Dehumidifier Maintenance

Unlike humidifiers which require a good amount of regular and diligent maintenance in order to keep them functioning properly and safely, dehumidifiers require relatively little maintenance.

However, in order to keep your unit running at peak performance and to keep your dehumidifier from becoming a fire hazard (any ill-maintained appliance can become one), here are some things to keep in mind:


  • Read the user manual and follow manufacturer recommendations.Familiarize yourself with the unique features and requirements of your particular unit in order to care for its specific needs.
  • Set up your dehumidifier properly. Make sure your unit is placed on a level surface and that there are no obstructions to its air intake. Blocked air intakes can cause the units to overheat and lead to increased fire hazard risk.
  • Check water levels daily. Most units shut off when their water containers are full, but if they are not emptied, the dehumidifier is not operating and your home humidity levels will begin to rise. For units that feature a hose option for drainage, check regularly to make sure water is draining properly.
  • Check the water reservoir / condensate bucket regularly. You need to periodically clean the water reservoir to prevent mold growth. You can clean the reservoir with Vital Oxide mold remover.
  • Never store gas or other flammable liquids near your dehumidifier. This is a major fire hazard.
  • Inspect power cords and replace when necessary. Make sure that the electrical cord you get is the same type and amperage. Never use a unit with a damaged power cord, because this is a fire hazard.
  • Don't set the humidistat too high. You do not want to over-dry any area in your home - it is uncomfortable for the inhabitants, and it is not good on your house. It is not good on your unit either which, as a result, may run continuously. Many units have built-in humidistats; just set it to the level you desire and let the dehumidifier do its job.
  • Regularly replace any filters. If your unit has any kind of filter, make sure to check it regularly and replace yearly or as necessary. Again, check manufacturers instructions.
  • Inspect and clean dehumidifier's coils once per year. Coils should be free of dust. Clean them with a vacuum cleaner or a soft-bristle brush (not a wire one, since coils can be easily damaged). Coils should never be wet. When temperatures are cool under 60 degrees Fahrenheit, make sure the coils are not icing up.
  • Do not turn unit off and on quickly. Wait at least ten minutes after you turn the unit off in order to turn it on again. You will avoid short-circuiting the unit and prolong its life.
  • Apply oil to motor as necessary and check pumps intermittently.
  • Do not get touchpad wet when cleaning the exterior of your unit.