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Old 01-05-2016, 07:49 AM   #1
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95 Holiday Rambler Dash A/C not working.

Good morning all. My dashboard A/C doesn't work in my Holiday Rambler Endeavour, Diesel Pusher. The compressor turns, and the clutch pulls in and out when activated, but I see any differential pressure on the gauges. I'm hoping it could be something simple like the expansion valve stuck, but I don't know how to troubleshoot the issue. I'm afraid that if I take it to a shop, they'll want to replace all the components, needed or not! Any troubleshooting tips would be greatly appreciated. I do run the generator, and roof top A/C's, but it still gets hot up front behind the glass.

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Old 01-05-2016, 08:32 AM   #2
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Don't take it to a shop. AC is fairly simple, if you have no differential you have one of two problems: No compressor flow, or no orifice restriction. I'd look for a blown line prior to the orifice. The compressor oil should show you where the leak is, probably before the orifice, maybe in the condensor.

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Old 01-05-2016, 10:27 AM   #3
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I found this chart helpful when I was solving my dash air problem.

1995 CC Magna #5280
C8.3L 300hp Cummins, 31,000lbs
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Old 01-07-2016, 12:03 PM   #4
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Thanks for the flow chart! It is much appreciated.
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