Primecom
Arcing at Vehicle Connector
Visible arcing or sparking when plugging or unplugging the J1772 connector from the vehicle.
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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
Disconnecting under load due to stuck relay, Worn or pitted J1772 pins, Vehicle inlet fault keeping contact energized, Slow or partial insertion/removal technique
How to Fix / Troubleshooting
Safety first: Arcing can damage connectors and pose a fire risk. Stop using the charger until the cause is identified.
- 1. Observe proper procedure: Always stop charging via the vehicle or charger controls (if available) before unplugging. Avoid slowly removing the connector; use a firm, straight motion.
- 2. Inspect J1772 pins: Look for pitting, blackening, or deformation. If present, replace the Primecom handle assembly.
- 3. Check for relay sticking: If arcing occurs even when following proper procedure, the internal relay may be remaining closed when it should open. This requires professional service.
- 4. Test with another EVSE: If arcing also occurs with a different charger, the vehicle inlet may be faulty and should be inspected by the vehicle manufacturer.
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Repair Difficulty
Hard
4/5
Required Part
J1772 Charge Cable and Handle Assembly
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