When the weather warmed up a bit, it ran fine! I could hear the compressor running...just had it replaced last year! It sounds almost like a vibrating noise now when the fan its running though.

I noticed this morning that my outside unit the fan is not coming on...so I turned my heat off. The inside unit would kick on but just a hum from the outside unit. What could it be?

Model..FT3BC-042K The unit is a Intertherm..... The inside unit comes on fine but the outside hums....I looked outside this morning and the fan is not coming on...so I turned the thermostat off!!! Could someone please tell me who I can contact or what it could be?? And possible how much money I may ...