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HEART sensors.stuck H-08003

Reading stuck. A reading has not changed when it should have.

CodeHEART sensors.stuck; inside a message "code": "sensors.stuck"
H-numberH-08003: area 08, code 003
Areasensors: Readings and calibration
Typical severityerror. A product may set another for its own case.
Applies toProducts with sensors: thermostats, chargers, pumps, printers, trackers, medical devices

Likely causes

How to fix or prevent it

  1. Compare with a second reading: a hand thermometer, a gauge, another sensor.
  2. Check that the probe is in place.
  3. Restart the sensor or its bus.
  4. Replace it if it freezes again.

What the HEART does by itself

It raises an error alert when the value has not changed while it should have, such as 90 s without change through watering, or no change while the GNSS shows movement. It stops trusting the value. The product's firmware often cannot see this if the frozen value is near the target. It resolves when the value moves again.

When to call service

If the sensor matters for safety, or freezes again after a restart.


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)