External fan fault

What does 24 mean?

This warning signifies that an external fan, monitored by the frequency converter's protective function, is not running or is not correctly mounted/detected. This indicates a potential cooling issue for external components or within the enclosure where the drive is installed, potentially leading to elevated operating temperatures. Similar to the internal fan, this monitor can be disabled via parameter 14-53 (Fan Monitor).

Complete Troubleshooting Guide

1. 1

   Check the electrical resistance of the external fan to identify any open or short circuits.

2. 2

   Inspect the soft charge fuses associated with the external fan's power supply for integrity.

3. 3

   Verify that the external fan is clear of debris, not obstructed, and functioning mechanically (i.e., spinning).

4. 4

   Confirm the setting of parameter 14-53 (Fan Monitor) to ensure the monitoring function is active and not inadvertently disabled.