CONTACTOR WELD
ClipperCreek Welded Contactor Contacts

Vehicle continues to draw power or detects voltage even when EVSE indicates not charging; contactor suspected welded closed.

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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

Severe overcurrent event, Lightning or surge, Worn contactor at end of life, Contactor specified too small for load

How to Fix / Troubleshooting

Safety first: This is a serious safety condition. Turn OFF the breaker immediately and do not use the EVSE until repaired.

  • Verify de-energized: With a qualified electrician, confirm there is no voltage at the J1772 power pins when the breaker is OFF.
  • Contactor test (power OFF): Open the EVSE and measure continuity across the contactor power poles. If continuity exists with the coil de-energized, the contacts are welded.
  • Inspect for damage: Look for signs of overheating or melted insulation around the contactor and wiring.

The contactor must be replaced, and the control board and wiring inspected for damage. Do not attempt to free welded contacts manually.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Power Contactor
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