Porsche
Overheating / Localized Thermal Damage
Porsche EV home charger emits a burning smell or shows discoloration on the housing near the cable entry.
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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 terminal connection at cable entry gland, Overloaded or undersized supply cable, Damaged insulation due to excessive bending or strain, Internal component failure causing hot spot near entry
How to Fix / Troubleshooting
Safety first: Immediately turn off the breaker feeding the wallbox. Do not use the charger until it has been inspected by a professional.
- Do not touch hot areas: Allow the unit to cool before any inspection.
- Visual inspection: Once cool, look for melted plastic, burn marks, or deformed cable insulation near the entry point.
- Technician internal inspection: An electrician should open the wallbox, inspect the supply cable terminations, tighten or re-terminate as needed, and replace any heat-damaged components or wiring.
- Check cable sizing: Verify that the installed supply cable meets Porsche’s recommended cross-section for the configured current.
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Repair Difficulty
Professional Required
5/5
Required Part
Supply cable and terminal block
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