What I saw for this error is this
Err 55
Fault description:
Stop at another landing floor
Fault cause:
• Check F5-25 door open/close signal NO/NC
• Check the cable of door open/close signal
• Check the door close signal always valid
Disposal way:
Subcode 101- Check the door open limit signal at the present floor.
I checked all the fault cause but it does not align
I don't know if the unit has lost the ability to dispatch on automatic mode and to note the hall buttons works perfectly.