What would cause the ceiling fan to hum, but not turn the blades? We can manually spin them easily. There are two switches on the wall: one for the light and the other the fan. The light is working fine. Any help with this would be greatly appreciated.

My fan blade on my central unit won't turn. It appears it is trying to turn, so I helped it with a screw driver. The fan blade then runs with out fail, but will not cool. I was told that it might be my capacitor? Why is it when the blade turns it won't blow cold air?

Recently our central air unit stop producing cool air and noticed our fan was not turning outside, and was making a loud humming noise, can this fan be replaced without replacing the entire unit :confused:

Have a York model in our townhouse. Inside unit works and seems to blow out cool air, but outside unit where fan and compressor are does not run. Checked fuse box and did not look tripped. So I flipped it back and forth and heard a noise coming from box every few seconds. My son was outside at...

My outside unit Ruud 10 seer won't come on. I looked closely and noticed that some of the thermostat wireing had been cut most likely by digging dogs. Anyway I have a yellow blue white red and green wires leading from the house but only yellow purple blue and brown at the unit which wires connect...