E20
BougeRV Non-Volatile Memory / EEPROM Fault

Charger shows E20 and will not start; may be labeled as "memory error".

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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

Corrupted configuration data, Failed EEPROM or flash memory on main board, Interrupted firmware update, Excessive write cycles to memory

How to Fix / Troubleshooting

Note: Memory faults can often be resolved with a factory reset or firmware reflash.

  • Step 1 – Factory reset: Use the BougeRV front panel or app to perform a full factory reset. This will clear custom settings but may restore operation.
  • Step 2 – Firmware reflash: Follow BougeRV's official procedure to reload the latest firmware onto the charger.
  • Step 3 – Avoid power interruptions: Ensure the charger remains powered and undisturbed during any firmware update to prevent further corruption.
  • Step 4 – Board replacement: If E20 persists after reset and reflash, the EEPROM/flash memory on the main control board is likely defective and the board should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

BougeRV Main Control Board
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