E17
Volvo Firmware Corruption / Bootloader Failure

Charger shows E17 or 'Firmware Error'; unit may reboot repeatedly or refuse to start charging.

Advertisements

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.

Advertisements

Possible Causes

Interrupted firmware update via Volvo app, Power loss during upgrade, Faulty flash memory on main control board, Incompatible firmware image loaded

How to Fix / Troubleshooting

Safety first: Normal firmware recovery does not require opening the unit. Do not cycle power rapidly.

  • Attempt recovery mode: Follow Volvo’s instructions (often holding a front button during power‑up) to enter firmware recovery and reload the latest approved firmware via app or USB/service port.
  • Stable power: Ensure the charger is on a stable circuit and avoid turning the breaker off during the update process.
  • Use official firmware only: Only apply firmware provided through the Volvo app or official support channels.

If the charger remains stuck with E17 or in a boot loop, the main control board’s flash memory or processor may be damaged. Board replacement by an authorized service provider is typically required.

Advertisements

Repair Difficulty

Hard 4/5

Required Part

Volvo EV Home Charger Main Control Board
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements