Air conditioner stopped working on Monday. Tested everything we could think of. Time for the professionals. After he runs a few tests, he says “Have you had a mouse problem before?” Yes, years ago I had a tiny mouse friend for a day. I was sitting on my couch and watched something scurry from the furnance room to the laundry room. WTF. Quickly figured out he got in through the air conditioner housing and stuffed both ends of it with steel wool. Problem solved. Until now. I figured I’d do the same thing again and seal it up better. Until I got the bill… $225 to rewire outside. Son of a rat. Plan changed.