E14
Mennekes EEPROM / Configuration Data Corruption

E14 error; charger indicates internal memory or configuration fault.

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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 non-volatile memory on main PCB, Interrupted firmware update, Power loss during configuration write, Defective memory IC

How to Fix / Troubleshooting

Safety first: Turn off power before connecting service tools.

  • Factory reset: If supported, perform a factory reset of the charger configuration using the Mennekes service interface or internal DIP switch procedure. Re-enter installation parameters afterward.
  • Firmware reflash: Use official Mennekes firmware and tools to reflash the main control PCB. Follow instructions carefully to avoid interruption.
  • Check supply stability: Ensure the charger is supplied from a stable circuit to prevent further corruption during writes.

If memory errors recur after reflash and reset, replace the main control PCB.

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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB (EEPROM / Flash Memory)
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