EL
ErrorLib
Brands
||
  1. Home
  2. Otis
  3. DSD 412 Elevator System
  4. 910
About·Privacy·Terms

ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

910

BLOWN FUSE FAULT

Otis · DSD 412 Elevator System

What does 910 mean?

One or more of the three AC line fuses is open. This condition is checked on power-up and can be confirmed upon request through the PCU F#998 PCU Diagnostics function, via measurements on the Armature Interface PCB, A2.

Common Causes

  • One or more AC input fuses are blown.
  • Power wiring problem.
  • Faulty DSPR power relay.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check all AC input fuses for open circuits and replace any blown ones.

  2. 2

    Inspect power wiring for problems.

  3. 3

    Check for a faulty DSPR power relay.

  4. 4

    Use the PCU F#998 PCU Diagnostics function to confirm the fault.

Browse all codes in this manual (57)
Verified technical data. Last updated: April 2026

Related Faults

117/118SERIAL COMMUNICATION FAULT400MOTOR OVERLOAD FAULT401EXCESSIVE FIELD CURRENT
Source: Otis DSD 412 Elevator System
Open Manual (Page 88)Search more codes in this manual