SW-Error27 to Safety circuit. Communications Failure to Speed Ref Missing. Blown fuse to Bridge fault. Safety110V to VF_StopSpeed.
: Adjust the NGL/NGT to 24.5 Volts or replace it with a higher-rated unit (e.g., Weidmüller 156W).
| Code | Description | Common Cause / Notes | | :--- | :--- | :--- | | | Car Communication Fault | Communication lost between the main controller and the car top or car operating panel. Check the traveling cable. | | 302 | Hall Communication Fault | Communication lost with hall lanterns or hall call stations. Check the CAN-bus/LAN wiring connections on the specific floor. | | 310 | Microprocessor Error | Internal fault in the main CPU board. May require a system reset or board replacement. | | 404 | Car Not Leveling | The car is trying to re-level but cannot find the floor position. Check leveling magnets/sensors. |
The controller detected encoder activity while the car was supposed to be idle. Inspect the brake or machine for drifting. NoKSE (Hoistway Limit) schindler 5500 error codes free
: Safety circuit is disconnected; check the SB/SB1 contactors or the brake module .
| Code | Description | Common Cause / Notes | | :--- | :--- | :--- | | | Drive Fault / Inverter Error | General fault with the Variable Frequency Drive (VFD). May require resetting the drive or checking for overheating. | | 203 | Encoder Fault | Loss of signal or noise from the encoder. Check the cable shielding, connectors, and encoder alignment. | | 210 | Overspeed | The car traveled faster than the maximum allowed speed. Triggered by the governor or speed monitoring system. | | 211 | Underspeed | The car moved slower than expected for the given command. Often indicates a mechanical brake drag or motor issue. | | 220 | Run Time Limit | The elevator ran longer than the maximum travel time between floors (protects against a stalled motor). | | 230 | Phase Error | Issues with the main power supply phases. Check incoming three-phase power for loss of phase or phase rotation error. |
control systems. Diagnostic codes are typically viewed on the User Interface (UI) SW-Error27 to Safety circuit
This guide is provided for educational and reference purposes only. Elevator maintenance and repair should only be performed by qualified and licensed elevator technicians. Tampering with elevator controls without proper training can result in severe injury, death, or significant property damage. Always consult the official Schindler technical manuals for your specific serial number.
Clean the sensor eyes on top of the cabin. Inspect the positioning tape/magnets for misalignment or damage. Perform a system synchronization/learn run. 4. Communication & System Logic Errors (7x / 8x Series)
Slipping encoder cables, dirty magnetic tape reader heads, or skipped floor flags. Troubleshooting Steps: Safety110V to VF_StopSpeed
Elevator maintenance and troubleshooting involve high voltages, moving mechanical parts, and significant life-safety risks. This guide is for informational and educational purposes only. Only certified, licensed elevator technicians should perform diagnostics, clear critical faults, or open control cabinets. Core Schindler 5500 Error Code Categories
: Perform a manual brake check and reset the BESC counter. Free Technical Resources
The Schindler 5500 is a highly advanced, modular passenger elevator system celebrated for its performance, flexibility, and energy efficiency. For building maintenance staff and qualified elevator technicians, having the ability to quickly diagnose a fault is critical to minimizing downtime. However, one of the most common pain points in the field is the restricted access to the system's specific documentation.