indicate issues with weight detection, which can cause the lift to refuse calls due to "overload" even when empty. 1105 / 1109 / 1110 / 1112 : LMS requires recalibration.
Keep documentation of parameter changes. A firmware mismatch between the drive and the main board following a component swap will trigger persistent validation blocks.
Solution: Clean the optical lens of the sensor on the car top. Wipe down the code tape. Perform a (Synchronization trip). schindler 5500 error codes
Scroll down to or Diagnostics (Menu 1 or Menu 2 depending on firmware version). Select Error Log / Fault History .
For more detailed information on Schindler 5500 error codes and troubleshooting procedures, I recommend: indicate issues with weight detection, which can cause
Schindler 5500/6600 LMS Adjustment Guide | PDF | Elevator - Scribd
The car did not reach the door zone within the maximum allotted travel time. A firmware mismatch between the drive and the
If an Error 4001 is present, use a multimeter to check voltage checkpoints on the main board to see exactly where the safety circuit power drops out (e.g., Pit, Hoistway, Car, Drive).
Before attempting a reset, always ensure no passengers are trapped and that the cause of the fault has been identified. Reset Type
Solution: Check the 5V and 24V DC power supply rails. Check grounding connections. Update firmware if the error is recurring.