The internal temperature sensors (PTC thermistors) in the hoisting motor indicate overheating. Root Causes:
: For a Schindler 5500/6600, the Load Monitoring System (LMS) frequency for sensors 1 and 2 should typically read
The NiCd or sealed lead-acid battery that powers the emergency lowering system and car lights during power failure has degraded below 11V (for 12V system) or 22V (for 24V system). schindler 5500 error codes top
: Faults such as TMMB errors can sometimes be caused simply by the system date and time being incorrect. Perform a Reset :
: The car failed to reach the target floor within the maximum allowed travel time. 0447 (Encoder Deviation) The internal temperature sensors (PTC thermistors) in the
Errors are categorized into:
The controller cannot communicate with the hall lanterns, buttons, or position indicators. Root Causes: Perform a Reset : : The car failed
Always refer to the official Schindler 5500 Fault Code List for your specific firmware revision.
The voltage in the inverter's DC bus capacitors has exceeded the maximum limit, usually during regenerative braking. Root Causes: Failed or disconnected braking resistors.
Rather than waiting for a breakdown, proactive building managers schedule maintenance targeting the top five codes:
Check for 120-ohm termination resistance across the CAN-H and CAN-L lines with the system powered down. Inspect the traveling cable for physical wear. Verify shield grounding is intact.