Oops, just re-read your initial question. Is the problem happening only when hooked up to shore power (110v), or also when running on van power (12v)?
If you are plugged in, you need to have a 30amp circuit for the Starcool to run. It won't run correctly off a standard home outlet as it needs more juice, especially to start the compressor.
The Starcool system has a variety of breakers, including the 110v-20a on the main AC breaker panel, a 12v-40a breaker on the Starcool fuse panel (the little black box has a push button breaker reset that's hard to see), and 12v fuses on the fuse panel. See the schematic that Scalf77 posted on this thread: viewtopic.php?f=14&t=9157