E09
GoCable Relay / Contactor Coil Drive Fault

E09 displayed; charger stops charging unexpectedly or will not start.

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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

Open or shorted contactor coil, Broken coil drive transistor on control board, Loose coil wiring harness, Incorrect coil voltage rating contactor installed

How to Fix / Troubleshooting

Safety warning: High voltage is present around the contactor. Only qualified personnel should work inside the charger.

  • Visual inspection: With power OFF, inspect the main contactor coil terminals and wiring for loose connections or burnt insulation.
  • Check coil resistance: Using a multimeter, measure the resistance of the contactor coil. An open circuit or very low resistance indicates a bad coil.
  • Verify correct part: Ensure the installed contactor matches the specified coil voltage (e.g., 24 VDC) for the GoCable model.
  • Replace faulty contactor: If the coil is defective, replace the main power contactor.
  • If contactor is good but E09 remains: The coil drive circuit on the main control board may be damaged and require board replacement.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Power Contactor
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