Trotec No Power / Dead Unit

Dehumidifier does not turn 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, Defective power switch, Failed main control board

How to Fix / Troubleshooting

Safety: Unplug from mains before opening the housing. Only work on live circuits if you are qualified.

Steps:

  • Check outlet: Test the wall socket with another appliance to confirm power is available.
  • Inspect power cord: Look for cuts, burns, or kinks. Replace the cord if damaged.
  • Check main fuse: Open the unit and locate the fuse on the main PCB or near the power entry. Test with a multimeter and replace with the same rating if blown.
  • Examine PCB: Look for burnt components or tracks on the main board.
  • Replace main PCB: If the fuse is good and there is still no response, the main control board is likely defective and should be replaced.
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Repair Difficulty

Medium 3/5

Required Part

Main Control PCB
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