joshfixes.it
← All guides

Home Assistant / demonstration

Home Assistant device showing on but physically off

A demonstration diagnostic path for separating stale state, failed commands and device availability.

Published
30/08/2026
Updated
30/08/2026
Reading
6 minutes

Demonstration guide — commands and outcomes are illustrative. Review before use.

Symptom

The interface reports that a switch is on, while the physical load is off. Treat the mismatch as a state-authority problem before changing an automation.

Note — demonstration only: Entity names and output below are illustrative. Do not paste private tokens, addresses or logs into a public issue.

Narrow the cause

  1. Trigger the physical control and watch whether state changes.
  2. Inspect the entity’s last_changed and last_updated values.
  3. Compare an integration refresh with a service call.
  4. Check whether the device acknowledges the command or Home Assistant only assumes success.
reported state -> integration coordinator -> device acknowledgement -> physical load

Safe change

Reload only the affected integration after capturing evidence. Avoid restarting the entire system until the smaller test has ruled out a stale coordinator.

Expected output: A successful refresh makes the reported state converge with the physical state without manually forcing an entity value.

Verify

Repeat on, off and unavailable transitions. The fix is incomplete if state only recovers on the happy path.