E10
EO Charging
Internal Communication / Microcontroller Fault
Charger shows E10 and does not respond to start commands; often logged as internal communication error.
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
Firmware corruption on EO main PCB, Faulty communication between main PCB and RF/communication module, Power supply instability on control board, Damaged PCB from surge or moisture
How to Fix / Troubleshooting
Safety first: Isolate power before removing covers. Do not attempt board‑level component repair unless you are qualified and authorized.
- Power cycle: Turn off the breaker feeding the EO charger for at least 2 minutes, then restore power. Observe whether E10 clears after reboot.
- Check low‑voltage connectors: With power off, inspect ribbon cables and plug‑in connectors between the main PCB and any daughter boards (e.g., Wi‑Fi, RFID). Reseat connectors to ensure good contact.
- Inspect for damage: Look for burn marks, corrosion, or swollen components on the PCB. Evidence of surge or water damage usually requires full PCB replacement.
- Firmware update (if supported to end‑user): Using the EO app or installer portal, check whether a firmware update is available and apply it following EO's instructions. Do not interrupt power during the update.
- Replace main PCB if unresolved: If E10 persists after power cycling, connector checks, and firmware update, the main control PCB is likely defective and should be replaced with an EO‑approved spare.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
EO main control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements