Tesla
Overheating at Terminal Block or Internal Components
Wall Connector or surrounding wall feels warm or hot to the touch during charging
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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 line or ground connections, Undersized conductors, Poor ventilation around unit, High ambient temperature
How to Fix / Troubleshooting
Safety: Excessive heat at electrical terminations is a fire hazard. Turn off power before opening the unit.
- Check mounting surface: Ensure the Wall Connector is mounted on a non‑combustible surface per Tesla guidelines.
- Inspect terminals: With power off, remove the cover and check all terminal screws for tightness and signs of overheating (darkened copper, melted insulation).
- Verify conductor size: Confirm that branch circuit conductors meet Tesla and code requirements for the configured current.
- Improve ventilation: Remove any obstructions around the Wall Connector and avoid enclosing it in small, unventilated cabinets.
- If damage is present: Replace the Wall Connector and any damaged wiring.
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Repair Difficulty
Hard
4/5
Required Part
Tesla Wall Connector terminal block and internal wiring
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