On the Marithon coach 399 all the cruisairs are in the front. It seems that the rear air is somtimes pulling 40 to 50 amps on start. I told Tim its probably the motor. Do you guys think that would be the correct answer. I had just changed one of mine. Said that we could do it, but need to get the unit out part way. Question....can the unit be slid out enough without unhooking the piping to get to the motor?