E17
Nissan Internal Power Supply Failure

Charger displays E17; internal beeper may sound; unit refuses to start charging.

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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

Failed low-voltage power supply module in Nissan EVSE, Blown internal fuse on control board, Surge damage to SMPS components, Shorted peripheral (fan, RFID, comms) overloading supply

How to Fix / Troubleshooting

Safety first: This involves live mains and internal electronics. Turn OFF the breaker and wait several minutes for capacitors to discharge before opening the unit.

  • Check for life signs: If the display and LEDs are completely dead, E17 may not show; but if partially alive, note any flickering or dim LEDs.
  • Internal fuse check: With power OFF, open the EVSE and locate any user-serviceable fuses on the control board or power supply module. Test with a multimeter and replace only with identical type and rating if blown.
  • Inspect for damage: Look for burnt components, cracked casings, or bulging capacitors on the power supply section.
  • Disconnect peripherals (technician-level): To isolate a shorted peripheral, a technician may unplug fan, RFID, and comms modules one at a time and test if the power supply recovers.

Most internal power supply failures require replacement of the control board or dedicated PSU module by a professional.

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Repair Difficulty

Professional Required 5/5

Required Part

Nissan EVSE Low-Voltage Power Supply Module
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