My blower (I am assuming) that circulates air from my furnace and AC is making a ringing noise. I shut the AC off; but after a couple hours I started getting a ringing noise from the unit, so I shut it off from the main switch. The next day, I was able to run the AC for a while; but because I didn't want to take any chances of a fire, I shut if off during the night from the main switch again. This morning, when I turned the main switch on again, it started up immediately with making a screeching/ringing noise, so I shut it off from the main switch again before leaving for work. Any suggestions as it is going to take me 15 days before I can get anyone out to look at it!

Thanks!

Nina

Sounds like the blower motor. The assembly should be inspected and lubed if possible. If you have the tools and the knowledge take it apart and check it if not call for professional ON SITE service.