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
Cycle power to the drive
- 2
Check for internal cooling fan operation
- 3
Verify the cumulative operation time of the fan with monitor U4-03
- 4
Verify the cumulative operation time of the fan maintenance timer with U4-04
- 5
If the cooling fan has exceeded its expected performance life or is damaged, replace it according to the Peripheral Devices & Options chapter
- 6
If the fault continues after cycling power, replace the power board/gate drive board or the entire drive
Verified technical data. Last updated: March 2026
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Source: Yaskawa iQpump1000 AC Drive