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ErrorLib — Industrial Fault Code Library

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F910

BLOWN FUSE

Otis · DSD 412 DC Elevator Drive

What does F910 mean?

The PCU detected one or more open AC fuses. This fault indicates a critical interruption in the AC power supply to the drive.

Common Causes

  • One or more AC fuses are open (blown).

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Remove power from the drive.

  2. 2

    Identify and replace the blown AC fuse(s).

  3. 3

    Repeat the diagnostic test until the SCDU displays the 'PASS' message.

Browse all codes in this manual (48)
Verified technical data. Last updated: April 2026

Related Faults

117/118SERIAL COMMUNICATION FAULT400MOTOR OVERLOAD FAULT401EXCESSIVE FIELD CURRENT
Source: Otis DSD 412 DC Elevator Drive
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