E9
Antarctic Star
Control Board Communication or EEPROM Error
Display shows E9 and the unit may not power on correctly or may reset repeatedly.
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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
Corrupted control board memory, Loose display-to-main-board harness, Power surge damage to PCB, Faulty touch control/display board
How to Fix / Troubleshooting
Safety: Unplug the wine cooler before accessing control panels.
- Power cycle: Unplug the unit for at least 10 minutes to allow capacitors to discharge. Plug back in and check if E9 clears.
- Inspect control connections: Remove the top or front control panel (depending on model) to access the display/touch board. Check the ribbon cable or harness between the display board and main control PCB for secure seating and no corrosion.
- Check for moisture: Look for signs of condensation or liquid intrusion around the control panel. Dry gently and ensure the door gasket seals properly to prevent moisture reaching the electronics.
- Surge protection: If E9 appeared after a power outage or surge, consider using a surge protector going forward.
- Replace control boards: If wiring is intact and E9 persists, replace the main control PCB. If the issue remains, the display/touch control board may also need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
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