J+ Booster Intermittent Output Interruption

Charger intermittently stops charging without any error code; charging resumes if unplugged and replugged.

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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 internal connection on main control board, Thermal expansion causing marginal solder joint to open, Intermittent fault in output cable conductors, Overly sensitive upstream RCD or breaker tripping momentarily

How to Fix / Troubleshooting

Safety: Repeated interruptions can stress both charger and vehicle. Identify the cause before continued use.

  • Monitor upstream breaker: Check if the circuit breaker or RCD is tripping when the interruption occurs.
  • Check cable strain: Ensure the output cable is not under tension or twisted sharply near the charger housing or connector.
  • Test on another circuit: Use a different outlet or circuit to rule out supply issues.
  • Observe temperature: If interruptions occur only when the unit is hot, internal thermal or solder issues may be present and require professional inspection.
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Repair Difficulty

Hard 4/5

Required Part

J+ Booster Output Cable Assembly
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