I would like to install a new programmable thermostat. I have natural gas heat with electric air. The old thermostat has the following wires w1,w2,y1,g1,r, and b. There are 28 v running between r and b. Can I install a new prgrammable 5 wire thermostat? If so, which wires go where? What do I do with the extra wire? Thanx
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loreni
Welcome to the Home Repair Forums
I would follow the instructions in the new thermostat, Depending on how your old system was wired would decide which way you wire the new thermostat. Make a sketch of the old wires and hook ups, then try and reconnect everything the same way.
You wont kill your heating/ac unit!
Good luck
16x80
Sorry for the long delay with work I have been very busy!
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