Comfee Biological Growth on Coils or in Bucket

Dehumidifier emits a musty or moldy odor from the air outlet.

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Possible Causes

Dirty evaporator coil, Standing water residue in bucket or drain pan, Dirty air filter, High humidity inside cabinet

How to Fix / Troubleshooting

Safety: Unplug the unit. Wear gloves and a mask if sensitive to mold.

  • Clean bucket: Wash the water bucket with warm soapy water and a small amount of bleach. Rinse thoroughly.
  • Clean filter: Wash and dry the air filter.
  • Coil cleaning: Access the evaporator coil and use a non-corrosive coil cleaner suitable for aluminum. Follow product instructions and avoid soaking electrical parts.
  • Dry the unit: After cleaning, run the fan-only mode (if available) for 30–60 minutes to dry internal surfaces.
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Repair Difficulty

Very Easy 1/5
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