Fan alarm

What does FN mean?

This fan alarm appears on the operation panel when the cooling fan stops due to an alarm condition or operation inconsistent with the Pr. 244 (Cooling fan operation selection) setting. This alarm indicates a potential overheating risk, as adequate cooling is compromised, and the inverter will not trip immediately.

Complete Troubleshooting Guide

1. 1

   Visually inspect the cooling fan for any obstructions, damage, or operational issues.

2. 2

   Review the Pr. 244 (Cooling fan operation selection) setting to ensure it is correctly configured for the application.

3. 3

   If the fan alarm persists after inspection and setting verification, contact your sales representative.