Hi everyone, After receiving some rather outrageous prices from a local HVAC place, I've decided to fix my parent's HVAC on my own. I've repaired a number of appliances and work with computers, so while I'm no expert on HVAC, I'm not an idiot at dealing with things like this. The repair guy...

I have a 1075 rpm 1/3rd HP blower motor that started humming and not turning yesterday. It had a 10f/370 capacitor on it. I had called a guy out and he came and replaced the capacitor with a 7f/370 cap. He said it would work fine. Well, it was still turning, but started making an awful...