Challenge
No Power / Dead Unit
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 main PCB, faulty power cord, failed main control PCB, defective on/off switch or keypad
How to Fix / Troubleshooting
Safety: Unplug from mains before opening. If you are not comfortable working around mains voltage circuits, seek professional help.
Steps:
- Check outlet: Test the wall socket with another appliance to confirm power is present.
- Inspect power cord: Look for cuts, kinks, or burn marks. Replace the Challenge power cord set if damaged.
- Access main PCB: Remove rear or side panel to expose the control board. Locate the board-mounted fuse (often a glass or ceramic fuse).
- Test fuse: Use a multimeter to check continuity. If blown, replace with the same rating. If it blows again immediately, there is a short that must be diagnosed.
- Check for visible damage: Look for burnt components or bulging capacitors on the PCB. If present, replace the main control PCB.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB or Power Cord
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