Roof mounted heat pumps

Bob, your right about 4sensors. The one that “measures the temperature is supposed to be on the return somewhere and regardless is not on the room temperature . It acts more like it is on the supply side as when the outlet temp reaches between 100 & 105 degrees the compressor shuts off. The fan then comes on for anout 5 or seconds to “sample” the temp. Then after a few minutes the fan starts again and shortly after the compressor starts again for about 2or3 minutes.until the outlet temp gets to 100 . And that cycle repeats continually. My tech says Atwood doesn’t want to talk to him anymore. I’m reasonably sure that the unit does not work like any other, Atwood , and now dometic, which I believe bought the acnd business from Atwood, knows exactly how it works and that is not like any reasonable person would expect.