Mennekes Severe Overheating / Component Failure

Charger emits a burning smell or visible smoke during or after a charging session.

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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

Shorted component on main PCB, Severely overheated contactor or terminal, Internal arc fault, Incorrectly rated replacement parts

How to Fix / Troubleshooting

Safety first: Immediately disconnect power at the main breaker. Do not use the charger until fully inspected and repaired.

  • Do not open while hot: Allow the unit to cool before opening the housing.
  • Inspect for damage: Identify burnt components, melted insulation, or soot deposits. Do not attempt to reuse damaged parts.
  • Replace affected assemblies: Typically, the main control PCB, contactor, and any burnt wiring must be replaced.
  • Root cause analysis: Verify correct installation (cable size, breaker rating, ventilation) before returning the charger to service.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control PCB / Power Contactor / Wiring Harness
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