Fault Code 3 — DEV OVERTEMP

What does 3 Fault Code mean?

The drive's heat sink is overheated, reaching or exceeding 115°C (239°F).

• Fan failure
• Obstructions in airflow
• Dirt or dust on the heat sink
• Excessive ambient temperature
• Excessive motor load

Click steps to track your progress.

1. 1

   Check if the drive's cooling fan is operating.

2. 2

   Remove any obstructions blocking airflow to the heat sink.

3. 3

   Clean the heat sink of any dirt or dust.

4. 4

   Ensure the ambient temperature is within the drive's operating limits.

5. 5

   Reduce the motor load if it is excessively high.

6. 6

   Reset the VFD after correcting the issue.