ERR27 at startup or during movement

• Fault Causes:

  
  

  1.Brake cable disconnected or not plugged into controller.

  2.Controller failure.

  
  

  Troubleshooting Method:

  1.Visual Inspection: Check if brake cable is broken/damaged, or plug disconnected. Repair or reinsert if needed.

  
  

  ​2. Brake Resistance Measurement: Use a multimeter to measure brake resistance (Normal value: ~25Ω). Abnormal readings indicate brake or brake cable fault. 

  Replace or repair it.

  3.If above checks pass, confirm controller failure

  
  

  Solutions:

  
  

  Repair brake cable.

  Replace brake.

  Replace controller.

  
  

  Warranty Period:

  One year (not applicable for human - caused damages such as water ingress or collisions).