Chevrolet
Overheating of EV Charger Enclosure or Internal Components
Charger gets very hot to the touch during normal charging; may reduce current or stop charging.
Advertisements
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.
Advertisements
Possible Causes
Insufficient ventilation around charger, Undersized supply wiring causing heat, Loose terminal connections, Internal fan failure (if equipped)
How to Fix / Troubleshooting
Safety first: If the enclosure is too hot to touch comfortably or you smell burning, turn OFF the breaker immediately.
- Step 1 – Improve airflow: Clear at least several inches of space around the charger. Do not store items directly against or on top of the unit.
- Step 2 – Check cable temperature: Feel along the Chevrolet charge cable. It should be warm but not uncomfortably hot. Excessive heat suggests internal resistance or damage.
- Step 3 – Inspect terminals: With power OFF, check that all input and output terminals are tight and show no signs of discoloration or melting.
- Step 4 – Reduce current: If the charger allows, temporarily lower the maximum current setting and see if temperatures remain acceptable.
- Step 5 – Service internal components: Persistent overheating may require replacement of the contactor, fan, or main PCB by a technician.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Main Power Contactor / Internal Cooling Components
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements