hdsechols

Have a 2008 Gulfstream Yellowstone on a Freightliner chassis powered by Cummins 300 hp diesel. While driving, noticed engine a/c not working. Checked power seat, wipers and they were also not working. Arrived @ camp site and jacks and slides not working. Changed solenoid and noticed that it was too hot to touch, even though all systems are functioning . Any thoughts on issue?