myenergi Internal Power Instability / Firmware Crash

Zappi randomly reboots during charging sessions without tripping breakers

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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

Failing low-voltage PSU on PCB, Overheating of main processor, Firmware bug, Short on low-voltage accessory wiring

How to Fix / Troubleshooting

Safety first: Frequent reboots can interrupt charging unexpectedly; monitor vehicle state.

  • 1. Check ventilation: Ensure the Zappi is not covered and has adequate airflow around it.
  • 2. Firmware update: Update to the latest firmware to address any known stability issues.
  • 3. Disconnect accessories: Remove any third-party devices powered from the Zappi’s low-voltage outputs to reduce load.
  • 4. Inspect PCB: With power off, look for signs of overheating or damaged components on the main PCB.
  • 5. Temperature monitoring: If possible, use the menu or app to monitor internal temperature and see if reboots correlate with high temps.
  • 6. Replace main PCB if unresolved: Persistent random reboots usually indicate a failing PSU or processor on the PCB.
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Repair Difficulty

Hard 4/5

Required Part

Main Control PCB
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