Hi. I have fitted a sonoff to monitor the temperature in the house and switch on the exchanger circulation pump. The sensor itself briefly connected to the sonoff works. In order not to forge the walls, I connected the sensor to the free wires in a 5x1.5mm2 cable. This cable runs from the exchanger to the kitchen for about 7 metres. I have 2 wires used for L and N and the other 3 wires for the sensor. It is not working. I thought the interference from the phase was transferring to the sensor but nothing. Even though I disconnect the 230v from this cable the app still does not see the sensor. Do you have any ideas?
