Tuesday I got home and thought it was awfully hot in the house. Our AC has always been undersized and so it's not unusual for the house to feel warm, but this was warmer than normal. Hm, thermostat set at 77, but temperature is 85. Great. Go downstairs, find the low side line is warm. Shut everything off, check the coils (not frozen), wait a while. Turn it back on. Nope, no cold air. And this was on Laurie's "get home from work" day. FML. Got a recommendation from our realtor on who to call. Called them Thursday (after having tried someone who we knew, and apparently stopped doing HVAC and also stopped responding to calls and texts relating to it). The recommended company came out first thing yesterday morning, right on schedule. Diagnosed it, found out the system had a leak, but it also had a bad compressor (perhaps killed in part by the leak). So, needs a new outdoor unit, which was 11 years old. Indoor unit was 14 years old. Well, the house never was sized correctly from when it was built. They had originally put in a 3.5 ton unit, which was way too small. Then they upgraded it to a 4-ton and added zoning, which still couldn't keep up on the 90+ degree days that make up a good portion of our summers. We don't set our house very cold, either - this was just trying to keep it at 80, and it was failing at that. Oh, and we've got some additions planned. So talk to the guys about it, and they pointed out issues with how the zoning was done in the first place. I'd always preferred having a two-system setup in hot climates anyway, one upstairs and one downstairs unit, with room to grow. Two 3-ton units they said would be good and not oversized for today, not undersized for the future. Sounds good to me. Oh, but I was thinking about doing a mini-split in the garage, too. So while you're here guys, what sort of a deal can you make me on a big package setup? They put together a package that I thought was very fair on price, adding a 15k BTU mini-split dedicated for the garage to the two 3-ton units. I opted for the inefficient 14 SEER units outdoors. Going to 16 SEER since they're heat pumps was going to add a lot to the cost, and the electricity savings just doesn't make sense. On the other hand, the mini-split they're putting in is really whiz-bang nifty. Mitsubishi unit that's 22 SEER, remote control, and all kinds of settings for blowing the cold air where you want it. So I can set the thing up for the nominal temperature when I'm not in the garage, turn it up or down as I feel like when I'm going to get in the garage, and then let it blow cold air specifically where I'm working while in there. We'll see how it all works out, but given how efficient it is, clearly the answer is to keep the garage as cold as a freezer in the summer, and as hot as the sahara in the winter. They're going to have the first unit working today (they're most of the way there already) so we'll have some AC over the weekend besides our 5000 BTU wall unit we keep for emergencies. That's kept the master bedroom comfortable but it is not doing much for the rest of the house besides keeping the humidity down a bit. So that will hopefully keep things more tolerable if not at the desired comfort level. Unexpected expenditure, but fixes a problem we had with the house and takes care of an upgrade I wanted to do to the garage. Now if only it had done this at the beginning of the summer instead, I could've had the mini-split for all of this work on the Cobra.