E10
AMPROAD
Internal Communication / MCU Fault
Charger shows E10 and does not respond to start commands; display may be dim or frozen.
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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
Firmware corruption on main controller, Failed communication between control board and power board, Loose ribbon cable or harness, Power supply rail failure on control board
How to Fix / Troubleshooting
Safety: Turn OFF the breaker before opening the charger. Do not attempt firmware flashing unless you are authorized and have the correct AMPROAD tools.
- 1. Power-cycle:
- Turn OFF the breaker for 5 minutes, then turn it back ON.
- Observe whether the display boots normally or remains in E10.
- 2. Check internal connections:
- With power OFF, open the charger and locate the ribbon cable or harness between the display/control board and the power board.
- Reseat all connectors firmly.
- 3. Inspect for damage:
- Look for burnt components, bulging capacitors, or cracked solder joints on the control board.
- 4. Firmware / board replacement:
- If AMPROAD provides a firmware update procedure, follow it exactly.
- If the unit will not boot or accept firmware, replace the main control board.
- 5. Final test: After repair, verify that the charger boots without E10 and can start a charge session.
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Repair Difficulty
Hard
4/5
Required Part
AMPROAD Main Control Board
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