Communication error between internal boards

The main control board and the sub-control board are unable to communicate with each other properly.

This can happen due to a loose ribbon cable connection between the boards, electromagnetic interference, a firmware glitch, or a faulty control board. In some cases, a power interruption during operation can cause a temporary communication loss.

Try turning the machine off, unplugging it for 30 seconds, and plugging it back in. If the error code reappears after restarting, the issue is likely a hardware connection problem. Contact our support team for diagnosis and repair.