<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Capt Joe:
The compressor on my dash air does not seem to be engaging. The fan blows fine. I realize that the dash AC is probably part Workhorse and part Winnebago and will post in both foruma.
I have tried a couple of simple things and am wondering if anyone has any other suggestions before I take it to my local Workhorse service center because I'd just about rather take a beating than have to put up with the making of an appointment, the delays and general aggrications of dealing with them. I was told that it takes nearly 2 weeks just to get them to talk to you...anyway

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The air seemed to be working about a month ago but now I don't even get a click or any noticable change in the engine when I turn on the AC when idling.
So, starting with the simple things, I checked and replaced the 10A AC compressor fuse, even tho it checked out ok. Then I picked up a new AC Relay ($9) and replaced the existing one with the new one....Results: NADA.
Any other simple things I can check, verify, etc before heading into the dealership??
Oh yes, out of factory warranty but I do have an extended warranty that I got transferred over when we bought the 2004 Winnebago Brave 32v. Might get to see it in action pretty soon.
Thanks, </div></BLOCKQUOTE>
Joe,
If the refridgerqant is low the compressor will not engage. As others have suggested you can get a kit and top off the refridgerant but I would use a kit with an oil charge and leak indicator (flourecent dye) in it. That way if you have a leak you will see the dye marking the spot if it is on one of the components out in the open. After 4 years it would not be unusual to have lost some refridgerant and the oil charge may help rejuvinate the shaft seals on the compressor and keep it going a while longer for you.