SMEG
User Interface Power or Communication Failure
Ice maker display is blank but internal components (fans/compressor) still run.
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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
Failed display board, Loose UI harness, Faulty low-voltage supply from main PCB, Moisture ingress into control panel
How to Fix / Troubleshooting
Safety first: Unplug the unit before removing the control panel.
Steps:
- Check harness: Remove the control panel and verify the ribbon cable or harness is firmly connected at both ends.
- Inspect for moisture: Look for condensation or corrosion on the display board. Dry gently and clean if minor; replace if heavily corroded.
- Measure low-voltage supply: With appropriate precautions and skills, verify that the main PCB is supplying the correct low voltage to the UI. If not, the main board may be faulty.
- Replace display board: If power is present but the display remains blank, replace the user interface board.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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