Worn or pitted carbon contacts on the interlock, loose wiring terminals.
The inverter detected a current spike exceeding safe operational thresholds. schindler 5500 error codes verified
Replace the drive (cost: $8,000).
The controller commanded the doors to open, but the open limit switch was not reached within the allocated time. Worn or pitted carbon contacts on the interlock,
: The system has detected that the car is exceeding its rated speed, triggering a safety halt. triggering a safety halt.