13

Frequency converter under temperature

Vacon · 20 Compact

What does 13 mean?

The heat sink temperature of the frequency converter has fallen below -10 °C. This indicates that the ambient operating temperature is too low for the drive to function correctly or safely.

Common Causes

  • Internal temperature of the frequency converter too low.
  • Ambient temperature below operating range.
  • Faulty temperature sensor (P1-30) in the converter.
  • Inadequate ventilation or blocked airflow.
  • Low load operation leading to reduced internal heating.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the ambient temperature in the vicinity of the frequency converter and ensure it is maintained above -10 °C.

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Verified technical data. Last updated: March 2026

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