Good Sam Club Open Roads Forum: Air dryer purge every 40 seconds
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 > Air dryer purge every 40 seconds

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wvabeer

Evans, West Virginia

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Posted: 06/06/22 03:57am Link  |  Quote  |  Print  |  Notify Moderator

Has anyone had this problem? I've check for air leaks on the line to the reserve tank and the line to the air drier all from the governor. A new governor, rebuilt air drier replaced air line from compressor to the air dryer. I think I have it narrowed down to the air dryer needs rebuilt again as last year I rebuilt it and fixed this problem. Is this a very big deal?


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JRscooby

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Posted: 06/06/22 04:19am Link  |  Quote  |  Print  |  Notify Moderator

First thing I would do is open the valves, make sure there is no water in tanks.

wvabeer

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Posted: 06/06/22 04:23am Link  |  Quote  |  Print  |  Notify Moderator

JRscooby wrote:

First thing I would do is open the valves, make sure there is no water in tanks.
done that no water

eHoefler

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Posted: 06/06/22 04:33am Link  |  Quote  |  Print  |  Notify Moderator

Most likely the pressure relief valve popping off, the regulator on the compressor is bad


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wvabeer

Evans, West Virginia

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Posted: 06/06/22 05:07am Link  |  Quote  |  Print  |  Notify Moderator

eHoefler wrote:

Most likely the pressure relief valve popping off, the regulator on the compressor is bad
replaced

RLHAMILTON

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Posted: 06/06/22 05:42am Link  |  Quote  |  Print  |  Notify Moderator

We experienced a similar issue a few years ago, but the release was intermittent. Replaced the air dryer, and didn't occur again. Good luck.


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MountainAir05

New Mexico

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Posted: 06/06/22 10:22am Link  |  Quote  |  Print  |  Notify Moderator

If your system had a weak unloader, you can check it out pretty easy by

appling shop air to the RV while it is not running so the governor is in cutout mode and is allowing air to the unloaders. If they are leaking you can usually hear or feel it blowing back out the intake of the compressor.

Doug might drop by in a few and correct us all.

wvabeer

Evans, West Virginia

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Posted: 06/06/22 10:34am Link  |  Quote  |  Print  |  Notify Moderator

MountainAir05 wrote:

If your system had a weak unloader, you can check it out pretty easy by

appling shop air to the RV while it is not running so the governor is in cutout mode and is allowing air to the unloaders. If they are leaking you can usually hear or feel it blowing back out the intake of the compressor.

Doug might drop by in a few and correct us all.
So air up the rv till it unloads the compressor while the engine is off
?

wvabeer

Evans, West Virginia

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Posted: 06/06/22 01:33pm Link  |  Quote  |  Print  |  Notify Moderator

MountainAir05 wrote:

If your system had a weak unloader, you can check it out pretty easy by

appling shop air to the RV while it is not running so the governor is in cutout mode and is allowing air to the unloaders. If they are leaking you can usually hear or feel it blowing back out the intake of the compressor.

Doug might drop by in a few and correct us all.
I applied 130 to the system, the purge would not stop till I lowered the pressure lower than 95. after it purged I could barely hear a leak close to the compressor. I'm sure all the lines are leak free.

* This post was edited 06/06/22 05:08pm by wvabeer *

wvabeer

Evans, West Virginia

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Posted: 06/06/22 05:07pm Link  |  Quote  |  Print  |  Notify Moderator

Well after the deed I described, the air sound was not coming from the compressor or unloader diaphram. I found it using a mechanics stethoscope, it was coming from the air dryer I rebuilt in January. I will keep ya posted on my results.

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