Honeywell Reduced Dehumidification Capacity

Dehumidifier runs but very little water is collected compared to previous performance.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Partially blocked evaporator coil, Dirty air filter restricting airflow, Weak compressor, Frost buildup due to faulty defrost sensor

How to Fix / Troubleshooting

Safety: Unplug before cleaning or opening panels.

Steps:

  • Clean filter: Remove and thoroughly clean the air filter.
  • Clean coils: Access the evaporator and condenser coils and gently brush off dust and lint. Use a non‑corrosive coil cleaner if heavily soiled.
  • Check for icing: Run the unit for 30–60 minutes and inspect the evaporator. If it is heavily iced over, test/replace the defrost or coil temperature sensor.
  • Verify fan speed: Ensure the fan is running at full speed and not dragging; replace the fan motor if weak.

Note: If performance remains poor after cleaning and sensor checks, the compressor or refrigerant charge may be degraded, which generally warrants unit replacement.

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Repair Difficulty

Medium 3/5

Required Part

Evaporator Coil
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