Dash Air N/W

[Wes Barager]

2002 Beaver Contessa ( Magnum )  ( Don't Know If The Magnum Part Makes a Difference ? )

Turn Dash air On Runs for Minute ,  Shuts off ,  Turn  0ff for minute then back on same thing !

M/H is new to Us ,  Have no Idea Where Anything Is ? I do know the Compressor is under the Bed ,

But where and How to get to the stuff under the dash I don't have a Clue ?

[Ed Dubois]

Have you looked under the front cap? Slide yourself under the front bumper and there should be space enough for you to stand up between the front end of the coach and the firewall. You'll find all sorts of things mounted up there.

Ed

[Edward Buker]

Wes,

This part pertains to the compressor. If the R134A charge is low you can have the compressor suction side pressure drop where it triggers the low pressure sensor (trinary switch) to shut down. The high and low pressure start to equalize and it can trigger on again.

This part pertains to the dash fan...When electrical things shut down repeatedly after a certain time but can then come back on it can be caused by a failing thermal breaker. Those are little silver cans under the copper buss bars in the electrical bay under the drivers seat. You could put a meter probe on ground and on the wired end of the can and see if one loses voltage output causing the fan shut down. Sometimes the breaker is doing its job if the current being drawn is excessive due to a failing motor for example. The current can be measured to verify the load or you can change out the breaker, they are not expensive, and if the new one has the same issue then it is not the breaker. There should be labeling on the door pointing to which one.

You may want to add a little more information on the symptoms. I think it is just the compressor coming on and off. Will it do that by itself if you just leave it on or do you have to shut it off at the dash to get it to reset?

Later Ed

[Larry Dedrick]

Wes:
      since you are having problems with your wipers and dash A/C you might consider the Constant Duty Solenoid in your electrical bay. We had problems not only with our wipers and A/C but other items around the dash as well. Changed the Constant Duty Solenoid and all was well after that.

      Hope this might help.       Larry D