Sorry, got the hoses mixed up. the inlet should be cooler than the outlet
of the reciever.         Another possiability , but I think not on the
vanagon, is that the drain tubes are blocked up with a bug nest or
somethin. The water builds up and encases the evaporater in a block of ice.
Air wont blow through it until melted.This mostly happens in regular cars,
with the evaporater inside the dashboard.The vanagon has only a drain pan
and 2 tubes.If both tubes happein to get blocked up , the drain pan will
overflow. Once again , the vanagon is unlike most other vehicles. This
rinki dink system reminds me of watering flowerpots,with the overflow
coming out the bottom.