E11
GoCable
Internal Communication Bus Error
E11 displayed; charger powers on but cannot communicate with internal modules.
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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
Loose low‑voltage harness between control board and power module, Damaged communication cable, Firmware mismatch between modules, Faulty CAN/RS485 transceiver on control board
How to Fix / Troubleshooting
Safety warning: Disconnect power before handling internal wiring.
- Reseat internal connectors: With power OFF, locate the low‑voltage harnesses (often multi‑pin) between the main control board, power module, and communication board. Unplug and firmly replug each connector.
- Inspect for pin damage: Check for bent or recessed pins in the connectors. Straighten gently if possible.
- Check harness routing: Ensure communication cables are not pinched or routed too close to high‑voltage lines, which can induce noise.
- Firmware check: If the GoCable app or service tool allows, verify that all modules are on compatible firmware versions. Update per manufacturer instructions.
- If E11 persists: Replace the communication harness first. If still unresolved, the main control board or power module communication interface may be defective.
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Repair Difficulty
Medium
3/5
Required Part
Internal Communication Harness
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