I have a trane weatehrtron - 7 wires from the wall and cannot find the right connection to the new honeywell rth6300b. I tried the wiring wizard and found I have 8 wired coming out of the wall and no place to hook them up... I end with the B, T , O and X2 left without a connection - help anyone?

Sir: My house is old and I only have 2 black wires coming from it. Where do they go? Y -o o- Rh G -o o- Rc o- W I want to put one black to Rh and the other black wire to W on the RTH6300B. Please advise. Fred sends.

We have a Frigidaire model B3BM-024K-A HVAC system. It is all electric. A few days ago, my husband replaced the old thermostat with a Honeywell RTH6300B programmable one. My husband wired it according to the instruction. It has a problem: the heat will not switch off automatically when the...

I am trying to install a Honeywell RTH6300B to replace a Honeywell 3-wire thermostat. The wiring on the old thermostat is: Red wire – R terminal White wire – Y terminal Green wire – W terminal There are no other wires. The system is an oil burner with hot water baseboard heating. There...

Since I live in Canada I want a programmable thermostat that uses celsius. Do you know if this model can be switched from Fahrenheit to Celsius? IF so how is this done? I've not opened the package since I wanted this anwer first. Thanks for your help.