Nissan
Internal Component Overheating / Short Circuit
Unusual burning smell or visible smoke from Nissan EVSE 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
Loose high-current connection causing arcing, Failed main contactor or relay, Shorted component on control board, Foreign object inside enclosure contacting live parts
How to Fix / Troubleshooting
Safety first: Immediately stop charging, unplug the vehicle if safe, and turn OFF the breaker. If fire is present, use a Class C-rated extinguisher and call emergency services.
- Do not re-energize: Do not attempt to restart the charger until it has been fully inspected.
- Visual inspection: After cooling and with power OFF, open the EVSE and look for charred components, melted insulation, or foreign objects.
- Document damage: Take photos for warranty or insurance claims.
- Arrange professional repair: Internal damage from overheating requires component or unit replacement by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Nissan EVSE Main Power Contactor or Control Board
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