F1
Comfee Indoor Temperature Sensor Error (Alternate Code)

Dehumidifier shows F1 and may run only in limited modes or not at all.

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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

Shorted or open room temperature sensor, Damaged sensor harness, Poor contact at PCB connector, Failed sensor input on control board

How to Fix / Troubleshooting

Safety: Disconnect power before opening the cabinet.

  • Reset: Unplug for 10 minutes and retry. If F1 returns, inspect the temperature sensor.
  • Locate sensor: Find the room temperature sensor near the air inlet or attached to the evaporator frame.
  • Inspect and test: Check for physical damage and test resistance with a multimeter. Compare to expected NTC values or to another identical sensor if present.
  • Replace sensor: Install a new OEM Comfee room temperature sensor if readings are abnormal.
  • Board check: If a new sensor does not clear F1, replace the main control board.
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Repair Difficulty

Medium 3/5

Required Part

Room Temperature Sensor (NTC)
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