I purchased a 7 day honeywell thermostat and installed it.(heat pump system) the heat worked fine.. now that it is hot the ac unit is turning on but the blower in the basement is not coming on.. I'm not sure if this worked before I changed thermostat because I just bought the house. However the...

Hello, I have a 15 year old gas fired furnace. I recently changed the old White-Rogers thermostat to a digital non-programmable one.. I connected all the wires (5 wires) White to white, yellow to yellow, red to RC, and Black to R, and green to green. The problem I'm having is being able to run...

When the blower starts up it seems to have a hard time getting started. (makes a noise like: wa... wa... wa.. wa) and then runs normally. Doesn't do this every time but maybe one out of four starts. Is motor going or some other reason? Thanks

The furnace is an electric intertherm.Last night the blower continued to run even though the heating elements had stopped and never did shut off.The only way to get it shut off is to turn off the breaker.The switch is set to auto on the fan.The furnace works fine,the blower for some reason has...

I have a York furnace and ac unit. The blower won't come on. :mad: The blower motor works I found that no power was going to the blower so I by passed it to stay on all the time. :cool: What I need to know know is what is causing it there is a Honeywell circuit board (ST9120b 1005)...