Shelly TRV looses calibration

    • Autor

    I have 4 TRVs. They regularly miss their position. When I see their position is 0% for a long time I go and check the radiator. The radiator is hot. One of them has really noisy valve and I can hear the water going trough it.

    After I do calibration, everything is back to normal, but on the next day, the situation is the same.

    I don't think calibrating every day is a solution. (Although I made a tool to simplify the process and tracking of this issue.)

    I hope that we are able to find a solution soon.

    Best regards.

    Einmal editiert, zuletzt von realbudhead (9. Januar 2022 um 20:36)

  • realbudhead 9. Januar 2022 um 20:36

    Hat das Label von Shelly HT auf SHELLY TRV geändert.
    Zitat von realbudhead

    I don't think calibrating every day is a solution. (Although I made a tool to simplify the process and tracking of this issue.)

    How do you trigger the recalibration? Hitting the physical 'reset' button works, but then it goes back into AP mode, which is a hassle to reconnect to the WiFi and re-configure the relevant settings.

    Einmal editiert, zuletzt von raboof (31. Januar 2022 um 11:21)

    • Autor

    The current version of the mobile app has calibration in settings. The web dashboard of the TRV has calibration too (I was using this one).
    But with the latest FW there is no neet to recalibrate, because the TRV regularly closes the valve tight and kind of recalibrates itself.

    This is a lot noisier than before, but works.

    Zitat von realbudhead

    The current version of the mobile app has calibration in settings. The web dashboard of the TRV has calibration too (I was using this one).

    Ah, indeed it is in the web dashboard under 'settings' and hitting the /calibrate endpoint (that's documented for other Shelly devices but not this one) also works.

    Zitat von realbudhead

    But with the latest FW there is no neet to recalibrate, because the TRV regularly closes the valve tight and kind of recalibrates itself.

    This is a lot noisier than before, but works

    Hmm, I'm on the latest (20220115-083921/v2.1.2@3f3e56f8) and I think I noticed the radiator still warming up even after the valve being closed, perhaps I need a spacer (Detecting if a spacer is needed?). Will have to do some more proper testing later.

    Glad your particular issue is now resolved, though :).

    • Autor

    Yes, I used the spacer for one of my radiators. And looking at your other post, you should try it.

    I had to cut the top part of the spacer 2-3 times, before makeing it a good fit.

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