System Scale Factor
Incompatible System Scale Factor
Otis · 400 Elevator
What does System Scale Factor mean?
Indicates that one of the credit peripherals (e.g., changer) has introduced an incompatible scaling factor, leading to incorrect credit processing or system miscalibration.
Common Causes
- Loose or faulty connections of the changer harness.
- Changer not properly plugged in or not functioning.
- An incompatible scaling factor introduced by a credit peripheral.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check the connections of the changer harness.
- 2
Make sure the changer is plugged up and working.
- 3
Make necessary connections to the harness or replace the changer.
Verified technical data. Last updated: March 2026
Related Faults
Source: Otis 400 Elevator