08

CANBUS Failure

Kone · Frequency Inverter

What does 08 mean?

This error indicates interference or a complete break in the CANBUS communication link. The error is recorded if communication with the car control PCB SM-02 fails incessantly for 4 seconds, pointing to a severe communication issue within the elevator's network.

Common Causes

  • Electrical interference affecting the CANBUS communication lines.
  • Missing or incorrectly connected resistor jumper on CANBUS terminals.
  • Physical break or damage in the CANBUS communication wiring.
  • Failure of the car control PCB SM-02 to communicate over the CANBUS.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect the entire CANBUS wiring for physical damage, loose connections, or breaks along the network segments.

  2. 2

    Verify that the required resistor jumper is correctly installed on the CANBUS terminals as specified in the installation guidelines.

  3. 3

    Check for sources of electrical interference near the CANBUS cables and implement appropriate shielding if necessary.

  4. 4

    Monitor the communication status with the car control PCB SM-02 to confirm continuous signal loss for the specified 4 seconds.

Browse all codes in this manual (37)
Verified technical data. Last updated: March 2026

Related Faults