Cadillac Internal Component Overheating / Failure

Charger emits a burning smell or visible smoke during or shortly after starting a charge.

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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

Failed capacitor or MOV on power board, Overheated contactor or terminal block, Shorted component on control board, Severe overvoltage event

How to Fix / Troubleshooting

Safety first: Immediately turn OFF the breaker feeding the charger. If smoke continues, call emergency services. Do not attempt to open the charger while it is hot or smoking.

Steps after safe shutdown:

  • Ventilate area: Open doors or windows to clear any smoke.
  • Do not re-energize: Do not turn the breaker back ON until the charger has been inspected by a professional.

When to call a technician: An EVSE technician must open the unit, identify and replace burned components, and determine the root cause (surge, miswiring, internal defect). In many cases, full replacement of the charger is recommended.

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Repair Difficulty

Professional Required 5/5

Required Part

Cadillac EVSE Power Board / Internal Wiring
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