Comfee No Power / Dead Unit

Dehumidifier will not power on at all; no lights or display.

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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

Blown internal fuse on main PCB, Faulty power cord, Failed main control board power supply, Open thermal fuse on transformer (if equipped)

How to Fix / Troubleshooting

Safety: Unplug the unit before opening. If you are not comfortable working with mains voltage, seek professional help.

  • Verify outlet: Test the wall outlet with another device to ensure it has power.
  • Inspect power cord: Check the Comfee power cord for cuts, burns, or loose prongs. Replace if damaged.
  • Access main PCB: Remove the rear or side panel to expose the main control board. Look for a small glass or ceramic fuse on the board.
  • Test fuse: Use a multimeter to check continuity across the fuse. If open, replace with the same rating. If it blows again immediately, there is a deeper fault.
  • Board inspection: Look for burnt components or bulging capacitors. If present, replace the main control board.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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