FF83

Fan Overtemperature

ABB · ACS800 Standard Firmware

What does FF83 mean?

The drive output filter fan has an excessive temperature. This supervision is active in step-up drives and indicates potential overheating if airflow is restricted, the fan is faulty, or ambient temperatures are too high, risking damage to the filter or drive.

Common Causes

  • Internal fan temperature exceeding operational limits.
  • Obstruction of airflow to the internal cooling fan.
  • Fan motor failure or reduced speed.
  • High ambient temperature environment impacting cooling efficiency.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Stop the drive operation immediately and allow the unit to cool down completely.

  2. 2

    Measure the ambient temperature to ensure it is within the drive's specified operating range.

  3. 3

    Verify that the fan rotates in the correct direction and that air flows freely through the cooling fins and vents.

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Verified technical data. Last updated: March 2026

Related Faults

Source: ABB ACS800 Standard Firmware