Both Belle and I grew up in houses that didn't have central air or heat. For that matter, my children grew up in a house with a window unit, and some nights we slept hot. That is no longer the case.
In the Deep South, central air conditioning has become a necessity. Belle promised herself that when she got grown, she'd never again sleep in a cold house during the winter, and I promised myself that I'd never sleep in a hot house in the summer.
Over the past couple of days, I noticed that the AC wasn't keeping up with the weather. It seemed to struggle a bit to keep the house cool. I changed the filters and the outside stuff, but that didn't seem to help. Before I call an AC mechanic, I'm going to do what I can, so this afternoon, I stopped by my local hardware store and got a bottle of something called Coil Clean.
Got home, killed the power and took the fan off the outside condenser unit. It was pretty nasty. I followed the label directions, sprayed Coil Clean all over the inside of the unit, then hooked up a garden hose. I sprayed out the condenser from the inside-out. The crap that jumped out of the coil was amazing. After I spayed everything down two or three times, I figured it was clean and re-assembled the unit. got power to it and the fan kicked on.
I put up my tools and headed inside. It seems to be blowing cold air, but we'll give it an hour and see if it gets down to the thermostat setting.
I may have just saved myself a sevice call.