Is it possible that a thermostat operates correct all the time except when it reaches the temperature that is set doesn't maintain that temperature?:D I noticed that actually that thermostat gives a signal to the furnace but furnace doesn't turn on but that happens only when thermostat needs to...

My furnace won't hold the temp the t-stat is set at. It seems to require a manual start (turn of then back on) We bought a new t-stat assuming that was the problem. But the issue keeps accuring, and is getting worse. I tried turned furnace off and disconnected the t-stat & wires and...

I believe my thermostat was mis wired last winter, last summer everything worked properly. The thermostat was replaced this winter and the furnace (gas) worked fine. Now when I turn on the A/C nothing comes on. There are 5 wires hooked to the electronic t-stat, I noticed there is a wire on both...

I have an old janitrol t-stat with 7-wire configuration y-g-r-o-w2-e-c I've purchased a hunter digital t-stat with a 5 wire configuration RC-RH-W-G-Y How do I get this thing to work? The old t-stat is as follow y-(yellow) g- (green) r(red) o( orange) w2- (white) E (brown) C- (blue) Help me...

My furnace thermostat (10 years old) has suddenly decided that it will no longer start the furnace in what's called "hold" mode. It only works in a previously set "program" mode. I am able to change the times and temperatures in "program" mode, but the furnace will not even start/run when I...