Hi,
I had my shelly 1PM connected to a switch for a water heater, and it worked like a charm for almost a year. Recently, it stopped working as I noticed it appears offline and there wasn't any "click" when I was trying on/off on a switch. I removed it from the wall and wire it to a light socket, just to make sure.
I checked the light socket with an electric line tester screwdriver and the lights on it glows, hence the shelly sends the electricity from the output, but when I screw in a LED bulb, it doesn't work at all. Also, I tried resetting shelly by holding the button on it for 10+ seconds and by switching on/off 5 times, but I don't hear any clicks. Neither method worked, so is there something else I can try to reset it and make it work again?