Floaire Feedback Fault Error Code

What does Floaire Feedback Fault mean?

The Motor Speed Controller monitors RPM feedback when the Feedback Fault option is enabled. If the MSC does not receive feedback data for 30 seconds, or the motor runs at less than 70% of expected RPM, it displays a Feedback Fault. It appears only on motors with feedback capability; Ziehl motors do not provide feedback, so the fault does not apply to them.

Symptoms

• MSC display shows Feedback Fault
• Fan runs below the commanded speed or not at all
• Fault recorded under the controller's Fault History and Fault Totals

Common causes

• MSC received no RPM feedback data for 30 seconds
• Motor running below 70% of expected RPM
• Feedback wiring or signal connection to the MSC interrupted
• Feedback Fault option enabled on a motor that cannot supply feedback

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Diagnostic steps

1. Confirm the motor type supports feedback

   Check the configured Motor Type in Board Config. Ziehl motors do not provide feedback, so this fault should not be enabled for them.

2. Inspect the feedback connection

   Verify the RPM feedback wiring between the motor and the MSC board is intact and properly seated.

3. Check actual fan speed

   Confirm the fan is reaching at least 70% of its expected RPM; mechanical drag or a blocked wheel can hold speed down.

4. Clear the fault and retest

   Use Clear Faults in the MSC Faults menu, restart the fan, and watch whether the fault returns.

When to call a professional

Call a qualified service technician if the fault returns after the feedback wiring and motor type are confirmed correct, or if the fan still will not reach 70% of expected RPM. Work on the MSC board, motor feedback circuit, and any speed adjustment involves live electrical components and rotating equipment, so disconnect power before servicing and leave board-level diagnosis to a professional familiar with this controller.