Asset Downtime
Downtime tracking helps teams understand when and why equipment goes offline. By monitoring online and offline activity, you can identify patterns, reduce outages, and improve asset reliability.
Overview
Zeltask records when assets go online or offline, creating a history that supports:
- Identifying equipment reliability issues
- Measuring maintenance effectiveness
- Planning preventive maintenance
- Reporting on operational performance
[Screenshot: Asset detail view showing status history chart]
How Downtime Tracking Works
The system records status changes for each asset:
| Status | Meaning |
|---|---|
| Online | Asset is operational |
| Offline (Planned) | Down for scheduled maintenance |
| Offline (Unplanned) | Down due to unexpected issue |
| Not Tracking | Downtime tracking not enabled |
These changes are recorded automatically and displayed in the asset's status history.
Enabling Downtime Tracking
Downtime tracking is enabled per asset. When enabled, the system begins recording online/offline status changes.
[Screenshot: Asset settings showing downtime tracking toggle]
Logging Downtime
There are two ways to record downtime:
Via Work Orders
When creating a work order linked to an asset:
- Create the action
- Set the asset to Offline
- The system logs an unplanned downtime event
[Screenshot: Work order creation with Offline status selected]
Manual Entry
You can manually log downtime directly from the asset:
- Open the asset detail view
- Access the status controls
- Set the status to Offline (Planned or Unplanned)
- Optionally specify start and end times
[GIF: Set asset status to Offline from detail view]
Restoring an Asset to Online
When work is complete:
- Open the asset detail view
- Change status to Online
- Optionally specify the time the asset came back online
[GIF: Change asset status from Offline to Online]
Viewing Downtime History
The asset detail view shows a visual history of online and offline periods.
[Screenshot: Status history chart showing online/offline timeline]
Time Period Options
- 1 week
- 3 months
- 6 months
- 1 year
Select a period to see the corresponding history.
Reading the Chart
- Green areas — Asset was online
- Red areas — Unplanned downtime
- Yellow areas — Planned downtime
Hover over any section to see details about that period.
Where Downtime Appears
Status information appears throughout Zeltask:
| Location | What's Shown |
|---|---|
| Asset list | Status indicator on each card |
| Asset detail | Current status and history |
| Work orders | Related asset status |
| Reports | Downtime metrics and trends |
Performance Metrics
Zeltask provides metrics to help evaluate asset reliability:
MTTR (Mean Time to Repair)
Average time required to repair an asset after an unplanned failure.
Calculation: Total repair time ÷ Number of repairs
Lower MTTR indicates faster response to equipment issues.
MTBF (Mean Time Between Failures)
Average time an asset operates before experiencing a failure.
Calculation: Total operational time ÷ Number of failures
Higher MTBF indicates more reliable equipment.
[Screenshot: Asset performance metrics showing MTTR and MTBF]
Using Downtime Data
Downtime information helps you:
| Goal | How Downtime Helps |
|---|---|
| Identify problem assets | High unplanned downtime indicates reliability issues |
| Justify maintenance investment | Data supports equipment replacement decisions |
| Improve preventive maintenance | Adjust schedules based on failure patterns |
| Report on operations | Provide accurate uptime/downtime metrics |
Tips
- Enable tracking for critical assets first
- Use "Planned" status for scheduled maintenance to distinguish from failures
- Review downtime patterns monthly to identify trends
- Compare similar assets to find outliers
- Use MTBF and MTTR to measure maintenance effectiveness