Fans are not working

Symptom

The fans are not working.

Cause

  • The fan airflow might be blocked.

  • An air baffle or blank is missing or not installed properly, causing a disruption in the airflow.

  • The fan cable is not properly connected.

  • The server is not properly ventilated.

Action
  1. Verify that no loose connections exist.

    For more information, see Loose connections.

  2. Check the front panel LEDs to see if any LEDs indicate an issue.

    For more information, see Front panel LEDs and buttons.

  3. Verify that cables or other material are not blocking the fan airflow path.
  4. Verify that no ventilation issues exist.

    If the system has been operating for an extended period with the chassis cover removed, airflow might have been impeded. Fans operate at 100% when the chassis cover is removed.