Internal fan fault

What does 23 mean?

This warning indicates that the frequency converter's internal fan is either not running or not properly detected, as monitored by an internal protective function. This can lead to insufficient cooling of the drive's internal components, risking overheating and potential damage. The fan monitor can be disabled via parameter 14-53 (Fan Monitor) if necessary for specific testing, but typically should remain active for protection.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure the internal fan is clean, free from obstructions, and visibly spinning when the drive is operating.

2. 4

   Confirm that parameter 14-53 (Fan Monitor) is not accidentally set to [0] Disabled, as this would bypass the protective function.