auxilliary air compressor maintenance

[luckyron1]

Hey John,

As it turned out, the aux comp stopped running yesterday. We are
hooked up to shorepower, the slide is out, and the 12 volt
compressor is functioning normally when the toilet flushes; and a
little extra from time to time during the day for the other non-
engine related air-acuated devices. I have a new Gast Compressor
(same model) on the way to us and will probably have it by the
middle of next week; will have it installed by a local RV Tech. In
the interim I want to make sure we don't burn out the 12 volt
compressor. I'm thinking that to be on the safe side that we should
probably put the slide in?; turn off the aux comp breaker; open both
the gray and black water valves; cease using the stair-well
cover....

In the mean time I have overcome some of my early alzheimers and
recalled that my air toilet wouldn't work when my 12 volt died about
2 yrs. ago, so it would follow that the 2 compressors weren't
plumbed together as some birders have had done. I'm wondering how
to do it or have it done. Do you have a diagram or something?

Your thoughts appreciated

. --- In WanderlodgeForum@yahoogroups.com, John Suter
wrote:
>
> Ron,
>
> Sorry you are still confused and hope I haven't
> added to it.
>
> --- R J wrote:
>
> > Thanks again John, I'm just not a mechanical guy and
> > I'm still confused.
> > Actually, when I tried it again, the 110 volt
> > compressor came on 1st and then a minute or so later
> > the 12 volt one kicked in.
>
> Great! That is the manner in which I believe it
> should work.
>
> > I don't have a clue how
> > they might be plumbed but the 12 volt one seems to
> > work independent of the 110 volt one. Like you, I
> > just had the 12 volt compressor replaced a couple of
> > years ago and to me, it seems to be performing
> > perfectly since then.... although now that you
> > mention it, I notice that it occassionaly comes on
> > spontaneously for 20 seconds our so. To give you an
> > idea, when new, it ran about 40 seconds after a
> > flush
> > and then shut down and that hasn't changed since I
> > had
> > it put in. To further confuse, I'm suprized to hear
> > that your 110 volt cycles every 3 to 4 hours because
> > ours doesn't seem to cycle more than 2 to 3 times
> > per
> > day.
>
> My guess is I should look for some leaks and fix
> 'em. That will be the next project.
>
> > I don't understand why the 12 volt compressor is
> > even
> > necessary what with the engines compressor, the 110
> > volt auxilliary compressor, the inverters and
> > generator.
>
> Typically, the 110V compressor is not on the
> inverter so you need the 12V compressor whenever you
> are not connected to shore power or the generator is
> not running.
>
> > Maybe a shut off switch on the 12 volt
> > is
> > the way to go. Just save it for when all else
> > fails?
>
> When our 2000 was new, BB replaced the 12V 4 or 5
> times under warranty. I thought there has to be a
> better way, especially when it became my nickel. The
> switch was simple, cheap, and I haven't replaced a 12V
> pump since.
>
> > Your further thoughts and advice appreciated.
>
> Glad to try and help. I think you have it.
>
> John
>
>
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