The Schindler 5500 utilizes an (Schindler Multi-Level Communication Display) to show error codes, which typically alternate with the elevator's status when a fault occurs. Common Schindler 5500 Error Codes & Resolutions
Often signifies a "System Communication Fault," where the platform control and ECU lose touch. 05 / 0005:
: Detected abnormal status in the inspection panel circuit (REC/RH). This often requires a manual reset via the SMLCD Service Tool Load Measuring System (LMS) Errors Errors in the range 1105–1126