105
BMS Alarm
Kone · Elevator Control
What does 105 mean?
An alarm has been triggered by the Battery Management System (BMS), indicating a non-critical issue with the battery. This condition limits the drive speed.
Common Causes
- BMS detecting a minor anomaly related to battery health, temperature, or cell imbalance.
- Battery parameters nearing their limits (e.g., charge/discharge temperature, voltage).
- Intermittent communication issue with the BMS.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Verify battery terminal voltage against specified nominal values under both no-load and charge conditions.
- 2
Inspect all battery power and communication cabling for loose connections, corrosion, or physical damage.
- 3
Measure the charging voltage and current delivered to the battery by the integrated charging unit.
- 4
Check the elevator control unit's diagnostic log for detailed BMS sub-faults or specific battery status readings.
Verified technical data. Last updated: March 2026
Related Faults
Source: Kone Elevator Control