FAn

Internal Fan Error

Yaskawa · iQpump1000 AC Drive

What does FAn mean?

This fault indicates a malfunction of the internal cooling fan or a failure of the magnetic contactor to the power supply. It can be triggered if the fan has exceeded its expected performance life or is otherwise damaged.

Common Causes

  • Internal cooling fan has malfunctioned
  • Fault detected in the magnetic contactor to the power supply
  • Cooling fan has exceeded its expected performance life (monitor U4-03)

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Cycle power to the drive

  2. 2

    Check for internal cooling fan operation

  3. 3

    Verify the cumulative operation time of the fan with monitor U4-03

  4. 4

    Verify the cumulative operation time of the fan maintenance timer with U4-04

  5. 5

    If the cooling fan has exceeded its expected performance life or is damaged, replace it according to the Peripheral Devices & Options chapter

  6. 6

    If the fault continues after cycling power, replace the power board/gate drive board or the entire drive

Browse all codes in this manual (45)
Verified technical data. Last updated: March 2026

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