Same thing happened to me but not after 15min... after about 7 months.
setup is for garage door opener and it worked for about 7 months.
The Shelly 1 has its own power supply attached 12vdc 1a and the jumper is set for 12vdc.
I have a switch attached to SW and L- to monitor when the door is opened and closed.
I and O are going to the garage door opener button
I have opened a ticket with Shelly and given them the details and pics I'm not sure if i will replace with the same device unless they can tell me what went wrong.
Mine looks way worse than the pics above but it seems I cannot upload the pics
Thanks thebearmay for the info on uploading the pics... already spoke with Shelly and they are replacing the device.
** I am still worried about putting one back on my garage door opener. They did not give an explanation but were surprised that it worked for 7 months then stopped working.
