Fault Detection

Blower Fan Motor Failure Early Detection Enables Quick Response Time

An HVAC fault detection alert identified a blower fan motor failure in a large commercial air conditioning unit serving a healthcare facility in Miami. This early notification enabled a rapid response by the operations team, significantly reducing system downtime and minimizing disruption to facility operations.

Fault Event

The fault detection system triggered a critical alarm indicating that the supply blower fan of a major AC unit was not operating. The system immediately alerted the facility’s HVAC team.

Resolution

The building’s maintenance staff initially found that the variable frequency drive (VFD) was in fault. However, resetting it did not clear the issue.

Upon further inspection by the HVAC team, they discovered that the blower fan motor had failed. Fortunately, the facility had a spare motor on site, which allowed the team to begin the replacement process immediately.

Within two hours, the building’s air conditioning system was fully operational again.

Takeaways

Thanks to the real-time alert, the HVAC and support teams were informed of the issue before it was felt by building occupants, allowing them to notify facility managers, staff, and patients proactively.

Having spare parts readily available played a key role in minimizing the repair time.

The HVAC fault detection system enabled a fast response to a critical failure, preventing extended downtime and maintaining continuity in a sensitive healthcare environment.

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