Charger shows E17 and immediately stops when a vehicle is connected; may indicate polarity or wiring issue.

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

Line and neutral reversed (on 120/240 V models), Missing neutral where required, Miswired double-pole breaker, Incorrectly shared neutral with other circuits

How to Fix / Troubleshooting

Safety first: Wiring corrections must be performed by a licensed electrician.

Verify wiring diagram: Compare the actual connections at the charger and panel with the installation manual.
Check breaker type: Ensure a proper 2-pole breaker is used for 240 V circuits and that both poles trip together.
Neutral requirements: If the charger model requires a neutral, confirm that a dedicated neutral conductor is present and correctly landed.

Do not attempt to operate the charger until wiring is corrected and E17 no longer appears.

Repair Difficulty

Hard 4/5