J+ Booster Overheating / Component Burn

A burning smell is noticed near the J+ Booster during or shortly after charging.

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.

Possible Causes

Overheated mains plug or outlet, Failing main contactor with high contact resistance, Internal PCB component overheating, Loose terminal in input terminal block

How to Fix / Troubleshooting

Safety: A burning smell indicates a potential fire hazard. Immediately stop using the charger.

Disconnect power: Unplug from mains or switch off the upstream breaker.
Do not touch hot areas: Allow the unit to cool before inspection.
Inspect externally: Look for discoloration, melted plastic, or soot around the plug, cable entry, and housing.
Do not reuse: Do not attempt another charging session until the source of the smell is identified and repaired by a professional.

Repair Difficulty

Professional Required 5/5

Required Part

J+ Booster Main Contactor Relay

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