Article
News
3
min read
Brad Bonavida

EllisDon Used FDD During the Warranty Period to Replace Manual BAS Analysis and Reduce Contractor Disputes

March 19, 2026

EllisDon, a facility management services provider, replaced manual BAS trend analysis with automated fault diagnostics to manage the warranty period on a newly constructed healthcare facility.

The company tested the approach by running two similar projects through different workflows. One healthcare building was monitored using Clockworks Analytics' fault detection and diagnostics platform during the warranty period. Another newly constructed facility was managed using the traditional manual BAS analysis approach.

Historically, EllisDon's warranty process meant downloading BAS data, manually analyzing trends, presenting findings to contractors, and then defending those findings when challenged. The work was time-consuming and often turned into repeated analysis cycles as contractors questioned whether faults were installation defects or operational issues.

The building using FDD operated differently. Instead of searching for faults in BAS trends, the operations team reviewed a prioritized list of issues generated automatically by the system.

"Clockworks finds all the faults that you've been spending hours and days looking for," said Joe Coady, Energy Lead at EllisDon Facility Services. "Now you're prioritizing faults instead of trying to find them."

The platform runs thousands of automated checks against the BAS each day, surfacing issues that may not appear during commissioning spot checks or routine operations.

During the warranty period, the analytics surfaced several installation problems that might otherwise have persisted for months or years. In one case, terminal units were discovered with isolation valves open, allowing chilled water to bypass the unit. In another case, the system detected abnormal cycling in domestic water booster pumps caused by a manufacturer's defect.

Those findings allowed EllisDon to address the problems while contractors and equipment manufacturers remained responsible for the corrections. The warranty period stopped being an investigation and became a structured fault-resolution process.

"We're no longer looking for faults," Coady said. "We're prioritizing them."

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EllisDon, a facility management services provider, replaced manual BAS trend analysis with automated fault diagnostics to manage the warranty period on a newly constructed healthcare facility.

The company tested the approach by running two similar projects through different workflows. One healthcare building was monitored using Clockworks Analytics' fault detection and diagnostics platform during the warranty period. Another newly constructed facility was managed using the traditional manual BAS analysis approach.

Historically, EllisDon's warranty process meant downloading BAS data, manually analyzing trends, presenting findings to contractors, and then defending those findings when challenged. The work was time-consuming and often turned into repeated analysis cycles as contractors questioned whether faults were installation defects or operational issues.

The building using FDD operated differently. Instead of searching for faults in BAS trends, the operations team reviewed a prioritized list of issues generated automatically by the system.

"Clockworks finds all the faults that you've been spending hours and days looking for," said Joe Coady, Energy Lead at EllisDon Facility Services. "Now you're prioritizing faults instead of trying to find them."

The platform runs thousands of automated checks against the BAS each day, surfacing issues that may not appear during commissioning spot checks or routine operations.

During the warranty period, the analytics surfaced several installation problems that might otherwise have persisted for months or years. In one case, terminal units were discovered with isolation valves open, allowing chilled water to bypass the unit. In another case, the system detected abnormal cycling in domestic water booster pumps caused by a manufacturer's defect.

Those findings allowed EllisDon to address the problems while contractors and equipment manufacturers remained responsible for the corrections. The warranty period stopped being an investigation and became a structured fault-resolution process.

"We're no longer looking for faults," Coady said. "We're prioritizing them."

Watch the full recording.

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This is a great piece!

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I agree.

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