Midea Evaporator Coil Icing

Dehumidifier frequently freezes up; evaporator coil covered in ice.

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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

Low room temperature, Restricted airflow from dirty filter or coils, Low refrigerant charge, Faulty defrost/coil sensor

How to Fix / Troubleshooting

Safety: Unplug the unit before defrosting. Do not chip ice with sharp tools.

  • Defrost completely: Turn off and unplug the unit. Allow all ice to melt; place towels to catch water.
  • Clean filter and coils: Wash the filter and clean both coils to restore airflow.
  • Check room temperature: Move the unit to a warmer area if the room is below ~65°F (18°C).
  • Inspect defrost sensor: Ensure the coil sensor is properly attached and not loose. Replace if suspected faulty.
  • Monitor operation: If icing recurs quickly in a warm room with clean coils, a refrigerant or metering issue is likely; contact a technician.
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Repair Difficulty

Medium 3/5

Required Part

Defrost / Coil Temperature Sensor
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