E18
Grundig
Mode Memory / EEPROM Fault
Display shows E18 and the refrigerator may not enter or exit Holiday/Vacation mode correctly.
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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 EEPROM on main PCB, Power surge affecting memory, Faulty control software, Defective main control board
How to Fix / Troubleshooting
Warning: Work on the main PCB only with the appliance unplugged. EEPROM and software issues often require board replacement.
- Power reset: Unplug the refrigerator for at least 10 minutes to clear volatile memory. Reconnect and attempt to change modes again.
- Factory reset (if available): Some Grundig models allow a factory reset via a button combination. Refer to the user manual and perform the reset to clear stored modes.
- Check for firmware updates: If your model supports service firmware updates, contact Grundig service to see if a software update is available to correct E18 behavior.
- Replace main PCB: If E18 persists and the unit does not respond correctly to mode changes, the EEPROM or control logic on the main PCB is likely defective. Replace the board with the correct Grundig part number.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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