Er
Della Marta
General Control Panel Error
Display shows Er or "Err" and the controls may be locked or unresponsive.
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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
Stuck keypad button, Moisture in control panel, Failed touch control PCB, Loose ribbon cable to main board
How to Fix / Troubleshooting
Safety: Unplug the cooler before removing the control panel.
- Dry the panel: If condensation or a spill occurred, leave the unit unplugged with the door open for several hours to dry the control area.
- Inspect keypad: Remove the control panel trim and check for stuck or damaged buttons. Clean around buttons with a soft cloth.
- Check ribbon cable: Reseat the flat ribbon cable between the display/keypad PCB and the main control PCB.
- Replace control PCB: If Er persists, replace the display/keypad control PCB specific to your Della Marta model.
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Repair Difficulty
Medium
3/5
Required Part
Display / Keypad Control PCB
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