Hello,
I bought a house with already old T2 NRG system and now 3 thermostat had stop functioning. Can I change only the front part of it ? Because it seems to be the only part which is non-functioning, and where to find that? If I have to buy a full new thermostat, then do I have to buy a new sensor as well? How can I know if the sensor is still good or not and if it fit the new Thermostat? (I think of buying just a new T2 NRG)?
Thank you