E10
Garo
Internal Communication Fault (Main Board to Communication Module)
E10 error appears and charging is disabled.
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
Loose communication ribbon cable between main control board and display/communication board, Faulty display/communication PCB, Firmware mismatch between boards, Electrical noise or surge damage
How to Fix / Troubleshooting
Safety first: Isolate power before opening the unit.
- Power cycle: Turn off the breaker for 2–3 minutes, then restore power. Temporary glitches can clear with a full reboot.
- Check internal connectors: Open the charger and locate the ribbon cable or harness between the main control board and the display/communication board. Reseat both ends carefully.
- Inspect for damage: Look for burn marks, swollen components, or corrosion on both PCBs. Any visible damage indicates the board should be replaced.
- Firmware check: If you have installer access and Garo tools, verify that both boards run compatible firmware versions. If not, update according to Garo's service documentation.
- Replace faulty board: If reseating cables and updating firmware does not resolve E10, replace the display/communication board first; if the fault persists, replace the main control board.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Display / Communication Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements