E9
Della Marta
Low Voltage or Power Supply Fault
Display shows E9 and the interior light or control panel may flicker or shut off intermittently.
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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 internal power supply on main control PCB, Loose AC input wiring, Faulty power cord, Overloaded outlet or low line voltage
How to Fix / Troubleshooting
Safety: Unplug the wine cooler before opening any electrical compartments.
- Check outlet: Plug a lamp or other appliance into the same outlet to verify stable power. Avoid using extension cords or power strips.
- Inspect power cord: Look for cuts, kinks, or burn marks along the Della Marta power cord. Replace if damaged.
- Internal wiring: Remove the rear panel and inspect the AC input terminals on the main control PCB. Tighten any loose screws and ensure the ground wire is secure.
- Board replacement: If E9 persists and no external power issues are found, the internal low-voltage supply on the main control PCB is likely faulty and the board should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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