Previously, all our other A/C issues have been with the outside unit literally blowing up. Apparently compressors don't like being under-powered. We fixed the power issues two years ago by completely replacing the breaker box with a new setup and re-wiring the house. We've had no power related problems since.
However, this year's problem is with the attic unit. The blower motor won't start on it's own (emits a loud hum), but even when I give it a little help and get it going, it doesn't blow the amount of air that it should. The freon lines are cold, and it looks like the outside unit is doing it's job properly. I'm hoping it's nothing more severe than having to replace the blower motor in the attic unit. My guess is this one's been going out for a while, which might explain why the house hasn't been as cool as it should over the last few years.
But, is there anything else I should be looking for? When I checked, there was no obvious scoring or charring on the motor and capacitor, though both are pretty old from the looks of them. From what I can gather, it looks like this blower motor may actually be the original one that came in the unit when the house was built in the 1970's.
Remember the Alamo, and God Bless Texas...