Type: Posts; User: jet
I will get in the attic today and find that information. Thank You for the help that you have given, I really appreciate this.
Currently have a Honeywell T841A1712 Multi-Stage Heat pump thermostat. I am changing to a Honeywell RTH7500D. All is good except that the manual states "If the old thermostat had wires on W1, Y1,...