I'm a residential owner in Houston, TX. I had a thermal infrared energy audit of my home this weekend, and in addition to insufficient insulation, some failed door seals, and a few duct/vents not getting a good seal, there was a weird thermal image of one of my 2 outside A/C units.
The first, presumably working unit looked much the same in infrared as visible light; the radiator was a fairly solid color, indicating good heat transfer throughout the radiator.
The second had a relatively cold radiator, surrounding a band of hotness that was right around the horizontal center of the unit. I should get pictures sometime this week, if so I will post them.
Basically if you imagine the AC unit, and wrapped a red water hose around the middle of it, that's what it looked like.
Any idea if this represents a problem, or if so what it is?
The thermal inspector said he'd never seen anything like that before...