The Schindler 5500 uses a specific set of fault codes visible on the . Below are the most frequent codes encountered by technicians:

Often related to overshooting a floor or hitting a final limit switch during a test, which may require a "double reset" to clear. Troubleshooting Common Systems Schindler 5500 Error codes - Elevator Forum

Indicates an invalid contactor feedback state while the elevator is idle. This usually requires checking the auxiliary contacts of the SB (Safety Brake) contactor.