Hi - We have a 2002 CC XLII. We have buttons for OTR air, and we were told that we have 2 compressors. But we can't find where it is located or turn it on. Does anyone have an idea of what we can do to find it and use it? We have been running the house a/c with the generator, but for some reason the generator no longer works for that, even though it is recently...