2001 winnabego adventurer

[the57man]

my chassis ac does not work.  It blows air but only warm air.  I put a charge on it and it didn't seem to help.  I did notice that the high side pipe near the charging port was getting hot which I think is normal.  what I did notice is that 90% of the air comes out of the defrost vents no matter where I set the control. Any ideas?

 

[JohnDale]

Check the blue vacuum line in the engine compartment. cut out the area you see and use windshield washer/vacuum hose to replace it.Slide the blue tube inside the hose.That is the max air vent and it should come to life.anytime you have a vacuum leak it goes to defrost.And the high side line or small one will be very hot. The large one or low side should get cold and sweat if conditions lets it.Hope this helps you. That line will be on your left when you open the front engine compartment.