Lectron EV charger displays E14 and refuses to charge; often associated with failed insulation resistance test.
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: An insulation fault can present a shock hazard. Turn OFF the breaker and do not use the charger until the issue is resolved.
- 1. Inspect cable and connector: Check the entire length of the Lectron charge cable for cuts, abrasions, or crushed sections. Inspect the J1772 handle for cracks or signs of water ingress.
- 2. Check enclosure seals: Verify that the Lectron housing gasket is intact and that all screws are tight. Inspect cable glands for proper compression and sealing.
- 3. Internal visual check: With power OFF and cover removed, look for water marks, corrosion, or carbon tracking on the main control board and wiring. Any sign of water inside indicates compromised sealing.
Resolution: Replace any damaged cable assemblies. If the main board or internal wiring shows signs of moisture or tracking, replace the affected components or the entire EVSE. Improve weatherproofing or relocate the unit to prevent recurrence.
Repair Difficulty
Required Part
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