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Jun Air aux compressor nearly kaput
My Jun Air compressor seems to be on its last leg. It is running more and more frequently and fairly long.
It has also gotten very loud. It is installed behind the front bumper and I can hear it running in the bedroom.Jeff had checked out the air system and found one leak only in the front compartment, which he fixed. My aux compressor services my pocket doors and the toilet.
Anyway, given how loud it is now, I suspect it is about to burn out and I am looking for replacement alternatives.
The Jun Air are very expensive, so a less expensive solution would be considered, if it provides the same functionality.
Your thoughs?
Thanks,
Ronald
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7 Replies
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I replaced my worn out compressor with a California Air unit. I just bought a complete unit with tank and took it apart. Not sure how yours is mounted, but a little creative engineering, and it worked like a charm. Less than $250. Very quiet.
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Before you throw out a prefectlhy good compressor why don’t you monitor your air pressure?
Usually if a compressor runs often and long it is because it is trying to replace air that has leaked. Your coach is at the age when you will either be spending quality time with it fixing leaks, or you will be paying serious money to someone who will find the leaks for you. That is a painful, slow, complicated process.
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Here is a link to a 1 hp California Air compressor on Amazon.
In addition the California Air unit is oilless. It has no SJ27 oil like the JunAir. The SJ27 oil that Jun ir uses will eat any oring it comes in contact with. If the oil seperator gets full or fails and that oil gets in yuor air system it gets expensive.
Mikee
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My Jun-Air is approx 20 yrs old, still quiet and running. A couple of months ago was throwing the breaker and not holding air. Called junair for thoughts and advice. A couple of reasonable priced parts and all has been good again. I believe their pumps can be rebuilt. Try tech support, very helpful.
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I( have a Thomas air compressor in my 2006 Millennium. It replaced a Jun Air. When it died I bought a replacement from Zoro Tools for $388. I aqlso bought their rebuild kit for $46. It took about 30 minutes to rebuild the old one. They include everything that could die.
Here’s the Thomas compressor:
http://www.zoro.com/thomas-piston-air-compressorvacuum-pump-13hp-688ce44/i/G2024032/
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Ronald,
In your post you wrote “air toilet”. Just to confirm it’s the compressor find the AUX air regulator for the toilet and turn it off. Normal air setting for toilet is 60 psi.
There is one thing about the air toilet which was discovered with the help of Microphor. There air toilet can leak air from your AUX reserve into the toilet “hopper” and you can’t hear it leak.
Another way, cap the air intake line to the toilet for the test.
Finding the bank of regulators is also a good idea so there status can be checked . They do leak and replacement is required no rebuilding. Marathon uses SMC brand.
The part that fails is the air-sequence valve with a price tag about $360. I’am not making this up and probably more $ now. You can spend $500 bucks on a Microphor toilet in a blink of an eye.
AL
Microphor Air Sequence valve.
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Removed the old noisy falliing apart Gast compressor and installed a new quieter California Tools MP100. Also built a new box for it to live in.
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