E13
Grundig EEPROM / Configuration Data Error

Display shows E13 and the unit does not respond to temperature adjustments or mode changes.

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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 firmware on main PCB, Power surge damage to memory, Incorrect configuration data, Faulty main control board

How to Fix / Troubleshooting

Safety: Disconnect mains power before handling the control board.

  • Power cycle: Unplug the wine cooler for at least 10 minutes to allow capacitors to discharge, then reconnect. Sometimes this clears transient memory errors.
  • Check supply voltage: Ensure the outlet provides stable voltage within Grundig specifications; avoid using undersized extension cords.
  • Inspect main PCB: Remove the control board cover and look for burn marks, swollen components, or corrosion.
  • Firmware reset (if available): Some models allow a factory reset via a button combination (refer to the service manual). Perform this reset to reload default parameters.
  • Replace main PCB: If E13 persists, replace the Grundig main control board. Transfer any configuration jumpers or DIP settings from the old board as instructed.
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Repair Difficulty

Hard 4/5

Required Part

Main Control Board
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