414
SOFTWARE COMPATABILITY FAULT
Otis · DSD 412 Elevator System
What does 414 mean?
The PCU (U13, U14) Version or Revision software is incompatible with the DCU (U39, U40) installed in the drive.
Common Causes
- Incompatible software versions between PCU and DCU EPROMs.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Contact Magnetek for compatible software versions or EPROMs.
Verified technical data. Last updated: March 2026
Related Faults
Source: Otis DSD 412 Elevator System