HEART sensors.drift H-08005
Sensor drift. A sensor has slowly moved away from the true value.
| Code | HEART sensors.drift; inside a message "code": "sensors.drift" |
|---|---|
| H-number | H-08005: area 08, code 005 |
| Area | sensors: Readings and calibration |
| Typical severity | warning. A product may set another for its own case. |
| Applies to | Products with sensors: thermostats, chargers, pumps, printers, trackers, medical devices |
Likely causes
- Age: many sensors drift slowly over months or years.
- Dirt or deposits on the sensor.
- Heat or humidity outside its rating.
- A missed calibration.
How to fix or prevent it
- Compare with a reference reading.
- Clean the sensor.
- Calibrate it (calibrate or zero, if the product offers them).
- Replace it if calibration does not hold.
What the HEART does by itself
It raises a warning when the slow change is clear, often found by comparing with another sensor or with a model of the system. It is often the cause of another alert, such as short-cycling. It resolves after calibration or replacement.
When to call service
If the product has no calibration the owner can do.
Related codes
sensors.disagreeH-08006: Sensors disagreeperformance.overshootH-05006: Overshootactuators.short-cyclingH-09004: Short-cycling
Inside a message a code is written bare, "code": "storage.full". In logs, tickets, documents and searches it is written
HEART storage.full. Things that simply happen, such as system.started, are event types, not faults.
The codes are defined in Part 3, Section 5.4, and their H-numbers in Section 5.7.
All of it, as data: fault-codes.json.
All fault codes, by area · All fault codes, by H-number · Problem types (API errors)