My Shelly 1 won't include in the Shelly app. The Shelly WiFi network appears briefly, but then inclusion is unsuccessful with a timeout error. The WiFi network list in my Android shows the Shelly network briefly, but it seems to disappear. My phone is right next to the Shelly.
The Shelly seems to have power as I can hear it clicking. Sometimes a double click and sometimes a single click, maybe every few seconds.
In case it's helpful, my Shelly is connected to the circuit board of my Reznor heater. The C wire is connected to the Shelly neutral, the R wire is connected to Shelly's line, and the W wire is connected to the Shelly SW. I want to use the Shelly to switch the heater on/off, which is achieved by completing the circuit of the R and W wires.