It is fun! My AC quit last year, and this is the first home I've lived in that I've been responsible for the maintenance of. I've always rented rooms or apartments, or since moving to the boondocks, rented single and doublewides. So, since I'm stubborn and can DIY until I can't, I started working on it. Turns out the coils had not been cleaned apparently ever and had clogged up with ant mounds and grass clippings over untold years until it caused the compressor to pull too much current trying to cool through the clogged coils. This caused an over current from the compressor capacitor that blew the cap and burned up a couple wires to and from it, and burned out the power-on relay contactor to the compressor. Luckily the compressor itself survived, and after cleaning the coils out, vacuuming the partially clogged drain line from the condensor and the condensor itself, and replacing the cap, wires and contactor, it started running like a champ again. It was a pain but very rewarding.