fan won't turn on

I had an old mercury thermostat that seemed to stop working, so I went and bought a honeywell rth221 thermostat from home depot. I installed it by following the manual but the ac heat and fan will not come on. I'm sure I connected the wires correctly because I looked at them before I...

I have a 6-7 year old Fedders gas furnace / AC model ABA 060 NH3R. Yesterday, what I suspect is the fan/blower stopped working. Trying to troubleshot the exact problem I found that the breaker to the unit had been tripped. When I switched the breaker back on it trip again intermittently, some...

Hi i have 2 of these furnaces working together. When the a/c is on only one will turn on and cycle cool air. The fan on the other won't energize. Just wondering if I have the thermostat wires in the right location? any ideas?