Dash Air suddenly quit

wvabeer wrote:
If it happened all of the sudden, I'd say its electrical, fuse , maybe a wire came unplugged. I would look at those first.

cant be a fuse as the fan blows and the compressor runs has to be a control board for the blend doors or bad vacuum motor or bad temp control valve etc

gutfelt wrote:
next question is the in line hot and the out real cold after compressor runs for 10-15 minutes or so?
if so then its most likely a temp control/air blend system control repair could be a vacuum motor dead or several things

This is the next thing we need to know. With the compressor turning, the low side line should be cold, or at least quite cool. That is the line coming out of the evaporator. The high side line from the compressor to the condenser should be HOT, like 200 degrees hot, so be careful when checking it. The line from the condenser to the evaporator should be ambient temp or just rather warm.

If you do the numbers, on my coach at least, you will find you will burn more fuel in an hour running the dash air than you will running the generator and the roof air for an hour. For this reason, I never us the dash air.

If it happened all of the sudden, I'd say its electrical, fuse , maybe a wire came unplugged. I would look at those first.

strudeau wrote:

gutfelt wrote:

strudeau wrote:

gbopp wrote:
When you get it fixed, let us know what caused the problem.

Will do.

as asked R U sure the whole compressor is actually turning and not just the outter pully?

Yes, I know the difference, Thanks.

good most don't now;; next question is the in line hot and the out real cold after compressor runs for 10-15 minutes or so?
if so then its most likely a temp control/air blend system control repair could be a vacuum motor dead or several things

gutfelt wrote:

strudeau wrote:

gbopp wrote:
When you get it fixed, let us know what caused the problem.

Will do.

as asked R U sure the whole compressor is actually turning and not just the outter pully?

Yes, I know the difference, Thanks.

Scottiemom wrote:
The dash air on our Phaeton failed and it was the "air dryer" and something called an "accumulator" maybe. Another time it was a pin-hole leak in a line that over time leaked all the freon out.

Keeping cool now!

Dale

you either have a receiver dryer or a accumulator not both

The dash air on our Phaeton failed and it was the "air dryer" and something called an "accumulator" maybe. Another time it was a pin-hole leak in a line that over time leaked all the freon out.

Keeping cool now!

Dale

Harvey51 wrote:
On a trip from northern Alberta to southern Saskatchewan, about 800 miles each way, the air conditioner on our 1992 GM van then about 8 years old failed suddenly. I drove in the heat for hours. Stopped to fill up with gas and struck up a conversation with the guy at the next pump. I was checking under the hood for something obvious without any luck. The guy said he was a mechanic and asked a few questions, then pulled out a small wrench and tapped on a valve several times. Suddenly the air conditioner worked!

It worked until it was 20 years old then gradually the cooling power faded away. A retired mechanic and refrigerator tech friend pumped out the old freon and put in two cans of new stuff. It is still working well!

I think the lesson is to find a knowledgeable mechanic.

just so you know the guy never ever pumped out old freon and put in new he simply put in new because over years the old leaked out
over time

On a trip from northern Alberta to southern Saskatchewan, about 800 miles each way, the air conditioner on our 1992 GM van then about 8 years old failed suddenly. I drove in the heat for hours. Stopped to fill up with gas and struck up a conversation with the guy at the next pump. I was checking under the hood for something obvious without any luck. The guy said he was a mechanic and asked a few questions, then pulled out a small wrench and tapped on a valve several times. Suddenly the air conditioner worked!

It worked until it was 20 years old then gradually the cooling power faded away. A retired mechanic and refrigerator tech friend pumped out the old freon and put in two cans of new stuff. It is still working well!

I think the lesson is to find a knowledgeable mechanic.