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...

I lower my heat at night but when I raise it in the morning, It doesn't kick on. I have to flick the heater switch off and on for the heater to come on.

I have a very old wall heating unit , the problem is when I turn the thermostat to on it takes anywhere from 5 minutes to 30 minutes to come on and sometimes it doesn't even come on-ive replaced the old thermostat it is a 2 wire system and now I can't get it to come on- any help will do

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...