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Review which equipment has a recurring fault, how long it has been open, and what to do next. FDD Faults groups faults by equipment or routine, shows occurrence metrics, and links to point trends for diagnosis. This page follows Faults on the web.

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Events vs Faults

FDD surfaces two related but distinct views of equipment problems: Open fault detail from FDD Events when you follow a device link, from FDD Reports from a device, or from the FDD Faults app launcher.

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Open FDD Faults

Select FDD Faults from the building app launcher. Use the header filter icon for area and date chips such as Last 7 Days. Use the history icon to refresh when streaming is enabled.

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Group faults by view

The header dropdown switches how the list is organized:
FDD Faults view menu with Faults, Device, and Routine options

Faults, Device, and Routine

FDD Faults list with VAV and FCU devices and Open status
Each row includes:Tap a row for a summary sheet, then Fault Details for the full page.
Fault sheet for VAV_208 with routine, occurrences, and area Floor 2

Fault summary before full details

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Fault detail

The fault detail page shows status, metrics, and routine logic.
Sensor Failure stale discharge airflow fault for VAV_209 with 104 day duration

Long-running sensor fault

Expand Possible Solution for recommended actions. Change status from the dropdown when your role allows. Open the more menu on the fault page:
Fault menu with Info, Points Trend, Comments, Work Orders, Watchers, and Activity Log
Select Points Trend, choose points on the device, then open Trends View.
Points Trend for VAV_208 with hot water valve points selected
Trends View for VAV_208 zone temp and hot water valve percent with fault shading

Zone temperature and valve command over time

Red shading on the chart marks the fault period. Correlate numeric trends with occupancy and valve state rows at the bottom.

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Collaboration and history

Use the section dropdown below the fault title to switch between Comments, Work Orders, Watchers, and Activity Log.
Fault Comments for VAV_101 with a sample comment Checking and Enter comment here field
Add notes for your team in the comment thread. Each entry shows the author, timestamp, and message text.
Fault Work Orders empty state for VAV_101 with Create Work Order button

Create Work Order from fault

Work Orders lists work orders linked to the fault. Tap Create Work Order when no record exists yet.
Fault Watchers list for VAV_101 with user checkboxes to subscribe to updates
Select users to watch the fault. Watchers receive notifications when status or activity changes.
Fault Activity Log for VAV_101 showing comment Checking and status updated to IN_PROGRESS

Comments and status changes

The log records comments, status updates, and other system actions with author and timestamp.

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Compare to web

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Next steps

FDD overview

Choose the right FDD screen for the job.

Events on mobile

Filter, acknowledge, and investigate events.

Devices on mobile

Open equipment, trends, and device actions.
Last modified on August 18, 2026