ARG!!! Anyone work with A/Cs?

[JoyRenee]

I walked in the door this evening to the loudest, craziest roaring sound. I thought there was a generator smack dab in the middle of our house. I walked by an air vent on my way to the back of the house to figure out what the sound was and realized it was coming out of the vent. I ran to turn the A/C off.

So I have no idea why our A/C would start to make that sound. My husband checked the furnace and found debris in the fan. We turned it back on only to have the sound start right back up again.

[JoyRenee]

It is DEFINITELY true! Our electric bill is pretty low for the size of our house. And we are very conservative. As it is now the downstairs unit it completely off as we haven't had anyone come look at it yet.

[OldFatChick]

The reason many two-story homes have two units is that it is cheaper to run only the system you are using.  If it is daytime and everyone is downstairs, you can set the upstairs thermostat higher and set the downstairs one lower.  Vice versa at night.

[JoyRenee]

The air was still cool but we believe the fan is loose or broken. Or both. So frustrating! And we have no idea why. Just one of those things, I guess. We need to have it serviced anyway. Luckily it hasn't been too hot this summer and we're doing fine with just ceiling fans.

And THANKFULLY we have a separate A/C/furnace for our upstairs (that is newer and works fine). I have no idea why we have two. We bought the house like this. It's a 100-yr-old Post Victorian so I'm assuming that maybe, at one point, it was split into apartments?

[teko]

If the compressor is outside, narrows it down to fan?  What happened?

[swampcritter]

Was the air still cool?

Fan or compressor?