Heatsink OverTemperature

What does F8 mean?

This fault is triggered when the temperature of the drive's heatsink exceeds its safe operating limit. Overheating can be caused by restricted airflow, accumulation of dust and debris on the heatsink fins, a malfunctioning cooling fan, or an ambient temperature that is too high for the drive's specified enclosure rating. Prolonged operation at elevated temperatures will severely reduce the lifespan of the drive's power components.

Complete Troubleshooting Guide

1. 1

   Physically inspect the drive's heatsink fins for any blockages, excessive dust, or dirt accumulation. Clean the heatsink thoroughly using compressed air.

2. 2

   Verify that the ambient temperature around the drive is within the specified limits (e.g., 40 °C for IP 30/NEMA 1, 50 °C for IP20/Open type installations).

3. 3

   Check the operation of the cooling fan(s) on the drive. Ensure it is spinning freely and moving air effectively; replace if faulty or damaged.