It was running fine until this afternoon. Fan not running-but I do hear a buzzing noise. I tried the restart button and the circuit breaker. Should I turn the air off until I can get someone out to look at it?

My home a/c unit will not kick on. When I drop the thermostat temp I hear a click on the outside unit and then it just makes a buzzing/humming noise. The start capacitor is the dual style but is not swollen at all. Its Sunday and no stores are open so it barrowed my neighbors capacitor (same size)...

Last summer my a/c started making this grinding noise when it would run for a few hours. After talking with some HVAC people, they suggested I use a less-dense filter in my furnace (I had been using 3M Filtrete). I switched filters and didn't have a problem any more (it was near the end of the...

Hello friends, A few months ago, my gas forced air furnace began making a "buzzing" noise every time it turns on when heat is called for. When the inducer motor starts the noise begins and as soon as the blower starts up, the noise is gone. We have had our HVAC guy out a couple of times. ...