EL
ErrorLib
Brands
||
  1. Home
  2. Vacon
  3. 20 Compact
  4. 25
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.

25

Microcontroller watchdog fault

Vacon · 20 Compact

What does 25 mean?

This fault is triggered by faulty operation or a component failure within the microcontroller, indicating an unexpected halt or error in the drive's internal control processes.

Common Causes

  • Microcontroller has not reset within the expected time window.
  • Internal software crash or freeze.
  • Hardware fault on the main control board.
  • Power supply instability affecting the microcontroller.
  • External interference causing watchdog reset.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Reset the fault and attempt to restart the frequency converter.

Browse all codes in this manual (26)
Verified technical data. Last updated: April 2026

Related Faults

1Overcurrent11Output phase fault111Temperature fault
Source: Vacon 20 Compact
Open Manual (Page 56)Search more codes in this manual