H.Koenig
No Power / Main Power Supply Failure
Ice maker does not power on at all; no lights or display when plugged in.
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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 PCB, Faulty power cord, Defective main power switch, Failed main control PCB power supply section
How to Fix / Troubleshooting
Safety first: Unplug the unit before opening any panels. If you smell burning or see melted plastic, do not attempt repair yourself.
- 1. Check outlet: Test the wall socket with another appliance to confirm it has power.
- 2. Inspect power cord: Look for cuts, kinks, or burn marks. If damaged, replace the cord.
- 3. Verify power switch: Ensure the rear or side power switch (if present) is in the ON position. Toggle it several times.
- 4. Access control board: Remove the rear or side cover to locate the main PCB. Check for an onboard fuse; if blown, replace with the same rating only after identifying the cause.
- 5. Look for damage: Inspect the PCB for burnt components or bulging capacitors. If present, the board should be replaced.
Warning: Do not bypass fuses or operate the unit with exposed wiring. If unsure, contact a technician.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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