Mini Overheating / Poor Thermal Dissipation

Mini EV Home Charger enclosure becomes very hot to the touch during normal 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

Blocked ventilation, Installation in confined or unventilated space, Loose high-current connections causing localized heating, Degraded thermal interface in power module.

How to Fix / Troubleshooting

Safety: If the enclosure is too hot to touch comfortably, stop using the charger.

  • Check installation environment: Ensure the charger has the clearances specified by Mini and is not installed in a small, sealed cabinet.
  • Reduce current: Temporarily lower the maximum charging current in the Mini app to reduce heat generation.
  • Inspect terminals (technician): With power OFF, open the unit and check all high-current terminals (input, output, contactor) for tightness and discoloration. Retighten to specified torque.
  • Check for dust: Clean dust from heatsinks and internal surfaces with compressed air.

If overheating persists at rated current and proper installation, the power module or cooling design may be compromised, and components should be replaced.

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Repair Difficulty

Hard 4/5

Required Part

Mini EV Charger Power Module Assembly
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