Community Forums

caddyohlala · 07-13-2021, 11:45 AM

New to this site, RV’s and praying 🙏 someone can help!
2008 Gulf stream Class A dash AC is not pushing cool air. I have searched thus problem for several weeks, called Gulfstream, and referred to owners manual. I cannot find the dash ac-inline fuse and also wondered if this could be an Kempco Expansion Valve? I have not been able to locate a diagram of it’s location. I purchased this RV in March and upon driving it home to Upstate NY cooler weather and the dash heater was Luke warm. However, upon my first camping trip to Maine 90 degrees + it was well over 100 degrees in the drivers seat!
Please if anyone can help me out with this I would be most appreciative!
Thank you so much 😊

Rob_M · 07-13-2021, 11:51 AM

Quote:

Originally Posted by caddyohlala

New to this site, RV’s and praying

someone can help!

2008 Gulf stream Class A dash AC is not pushing cool air. I have searched thus problem for several weeks, called Gulfstream, and referred to owners manual. I cannot find the dash ac-inline fuse and also wondered if this could be an Kempco Expansion Valve? I have not been able to locate a diagram of it’s location. I purchased this RV in March and upon driving it home to Upstate NY cooler weather and the dash heater was Luke warm. However, upon my first camping trip to Maine 90 degrees + it was well over 100 degrees in the drivers seat!

Please if anyone can help me out with this I would be most appreciative!

Thank you so much

First off, theres no reason to suffer 100* in the drivers seat even if the dash a/c isn’t working. Run the generator and roof a/c(s) in hot weather and put a portable air-mover in the floor to push the cool air forward.

**Lt Dan** · 07-13-2021, 12:34 PM

Any automotive A/C repair facility should be able to troubleshoot it for you. It's basically the same system that's in cars and pickups, just a little larger.

jacwjames · 07-13-2021, 05:43 PM

My guess is that it is probably low on refrigerant and if so the compressor won't run.

Any AC type repair facility should be able to diagnose.

When I first bought mine in 2008 the AC didn't work either. I added one can of 134r and it worked for +11 years but did the same thing this year so I bought a set of gauges and checked. It showed pressure but not enough for the compressor to run. Added a can of stop leak/oil and then added refrigerant to get the pressures to spec. In my case it showed what they should be in my manual but if you look on line you can find tables.

PaulMears · 11-01-2021, 10:13 PM

Had same problem on my Gulfstream Freightliner.
Evans valve in forward generator compartment was not working. It closes the line bringing hot water from the engine to the heater. If it does not close the line, the AC is running and the heater is effectively running - and you get hot air.
The Evans repair kit changes the number of wires used to hook to your controls on the dash.
The solution I used was to insert a manual valve in the hot water line from the engine to the heater (before the Evans valve.) I now close it in the summer and open it in the winter. All is good.
I will probably install the new Evans Valve before I sell the RV, just so the new owner doesn't have to see a non-factory solution in a first class Gulfstream Class A.