Besenergy
Excessive Thermal Rise / Cooling Deficiency
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, Failed internal cooling fan, High ambient temperature, Loose high-current connections causing localized heating
How to Fix / Troubleshooting
Safety first: Turn OFF power and allow the unit to cool before touching or opening.
- 1. Check ventilation: Ensure that the charger has adequate clearance and that vents are not blocked by walls, objects, or dust buildup.
- 2. Clean vents: Use a vacuum or soft brush to remove dust from intake and exhaust openings.
- 3. Verify fan operation: During charging, listen for the internal fan. If it is not running or is very noisy, the fan may be failing and should be replaced.
- 4. Internal connection check (qualified): With power OFF, open the charger and inspect high-current terminals for discoloration or melted insulation. Tighten and repair as needed.
- 5. Reduce current setting: Temporarily lower the maximum current (if adjustable) and monitor temperature. If overheating stops, internal components may be marginal and should be evaluated.
When to call a professional: Persistent overheating requires inspection by a qualified EVSE technician.
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Repair Difficulty
Medium
3/5
Required Part
Internal Cooling Fan
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