Dometic
Display Power / Display PCB Failure
Wine cooler display is blank or very dim; unit may still cool or may be completely dead.
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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 low-voltage fuse on control board, failed display PCB, loose display harness, power supply failure on main PCB
How to Fix / Troubleshooting
Safety: Unplug the appliance before removing the control panel or rear cover.
Steps:
- Check if cooling works: Listen for compressor or fan operation. If cooling works but display is blank, focus on the display PCB and its power.
- Inspect harness: Remove the control panel and reseat the connector between the display PCB and main control PCB.
- Check fuses: On the main board, look for small fuses protecting the low-voltage circuit. Test for continuity and replace with identical type if blown.
- Replace display PCB: If power is present at the display connector but the display remains blank, replace the display PCB.
- Main board: If there is no low-voltage output from the main board, replace the main control PCB.
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Repair Difficulty
Medium
3/5
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