E07
United Chargers Vehicle Detection / Proximity Circuit Error

Charger shows E07 and does not recognize that a vehicle is connected.

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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

Broken proximity (PP) conductor in cable, Faulty resistor network in J1772 handle, Damaged connector latch switch, Defective input circuit on main control board

How to Fix / Troubleshooting

Safety first: De-energize the charger at the breaker before inspecting the cable or internal wiring.

  • Check connector latch: Ensure the J1772 latch moves freely and fully engages when plugged into the vehicle. A stuck latch can prevent proper proximity signaling.
  • Inspect cable: Look for physical damage, kinks, or crushed areas along the cable. Flex the cable gently near the handle while observing the display; intermittent changes may indicate a broken conductor.
  • Test with another EV: If the charger detects another vehicle correctly, the issue may be with the original vehicle’s inlet.
  • Internal wiring check: With power OFF, verify that the proximity wire is securely connected from the cable gland to the control board terminal. Reseat any plug-in connectors.

If E07 persists and the cable shows signs of damage, replace the complete J1772 cable and handle assembly with a United Chargers-approved part.

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Repair Difficulty

Medium 3/5

Required Part

J1772 Charge Cable and Handle Assembly
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