De'Longhi No Power / Dead Unit

De'Longhi dehumidifier does 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 control board, Faulty power cord, Failed main control PCB, Defective power switch

How to Fix / Troubleshooting

Safety first: Unplug the unit before opening. If you are not comfortable working with mains voltage, contact a technician.

Step-by-step:

  • 1. Check outlet: Test the wall outlet with another appliance to confirm it has power.
  • 2. Inspect power cord: Look for cuts, kinks, or burn marks. If damaged, replace the cord set.
  • 3. Try a different outlet: Plug the unit directly into another known-good outlet (no power strips).
  • 4. Access control board: Remove the rear or side panel to expose the main PCB. Look for an onboard fuse (glass or ceramic). If blown, replace with the same rating only after checking for obvious shorts.
  • 5. Examine PCB: Look for burnt components or tracks. If present, the board must be replaced.
  • 6. Check power switch: If your model has a mechanical rocker switch, test it for continuity (requires a multimeter). Replace if open.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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