Remote temperature sensor problems in Systems and Appliances Posted March 23 · Report reply Well lol hope your ready for this .... took wall sensor cover off in bed room and the thermostat wire was back behind the wall I was able to fish it out. Turned furnace on and **** if it didn’t cycle on and off to the temperature set at. Guess it wasn’t getting a true reading behind the wall !!! Anyway I secured the wire so it can’t fall back into the wall again replaced the cover and we’re good to go want to thank you for your help and time on this problem !!