Light turning on and off without relay being controlled

    I have a light connected to a Shelly 1 Plus, which most of the time works well. But sometimes, and right now a lot, it's going berserk. The light is switching on and off "by itself". When this is happening I don't hear the relay activating. I do hear the relay activating if I trigger the light manually (via physical switch, via Shelly web interface or via HomeAssistant). It's on the latest non-beta firmware.

    Also when the light is switching on/off the status on the Shelly web interface nor on the HomeAssistant changes state, which it normally does.

    What should I check?

    Welcome to the forum!

    And now to your issue: Due to the fact, you don’t hear the relay clicking but light is going on and off, I would recommend to check the wire joints between Shelly and light. Possibly there‘s a loose connection?

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Es reicht nicht“, rief Schiller, „Gedankenfreiheit zu fordern, man muß auch denken können, sonst fordert man Gedankenlosigkeitsfreiheit und die ist die Freiheit zur Dummheit, welche wiederum die schlimmste Unfreiheit überhaupt ist!“
    (Aus „Besuch aus Weimar“ von Gert Heidenreich, Schriftsteller, *1944 in Eberswalde)

    Thanks thgoebel, I'll check it out. I have my doubts though because when this happens and I manage to catch it and turn it off on the switch (HA) then the light flickers on/off rapidly once. Example:
    1. Light turns off (without relay)

    2. It stays off by up to 5 seconds
    3. I catch it before this time and turn it off via HA (even though it's not lit)
    4. I hear the relay click

    5. The light flickers on/off