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Old 07-13-2020, 04:46 PM   #1
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Air Dumping on Driver's Side

After the coach sits a few hours (parked at full ride height, level, in my garage), the left/driver's side dumps the air quickly. Can here it pop-off and then it drops, not a slow leak...I have not yet identified where the air is purging from...



I've replaced all 3 ride height valves, and the air dryer. Otherwise, it airs up and rides and levels just fine. Not a huge deal to me but would like to fix it.



J. Briggs
2001 CC Affinity B&B 42'
Coach #5996
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Old 07-20-2020, 03:42 PM   #2
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Anybody?
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Old 07-20-2020, 06:33 PM   #3
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The only thing I can think of is that the HWH system is telling the coach to lower that side of the coach. I believe the HWH system is the only thing that can operate any solenoids controlling air to or from the air bags when parked as you describe.

Do you have the HWH leveling system turned off? Can you remove the power to the HWH system by pulling a fuse to remove any suspicion that HWH is the culprit?
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Old 07-20-2020, 07:23 PM   #4
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You might consider using some kids magic bubble soap and spraying every air fitting, line and valve on your rig, including the air bags.

We had a leak that was driving us crazy, settling to the right within hours.

It turned out to be the RR air bag on our Intrigue. The point where the rubber spring is glued/welded to the lower plate was seeping air from this junction for about half way around the junction. Very quiet but letting out lots of air, according to the bubbles.

New air bag/spring installed and it is still good after an 8,500 mile trip to AK and beyond last year.

Good luck with this,
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Old 07-20-2020, 07:38 PM   #5
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We had a customer come in with a similar problem in a Newel years ago.

It turned out to be the level valve on the opposit side was leaking air into the bag.

As it raised the one side, it would get to a certain height and the other side dumped the air.

If you have replaced all the valves, probably not the answer, so like others have said, time to get the squirt bottle of water and dish soap out.

Just be very careful under there. We don't want to read about you getting killed when the suspension dropped!

Happy Glamping.
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Old 07-20-2020, 07:53 PM   #6
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Quote:
Originally Posted by RVMANIAC View Post
After the coach sits a few hours (parked at full ride height, level, in my garage), the left/driver's side dumps the air quickly. Can here it pop-off and then it drops, not a slow leak...I have not yet identified where the air is purging from...



I've replaced all 3 ride height valves, and the air dryer. Otherwise, it airs up and rides and levels just fine. Not a huge deal to me but would like to fix it.



J. Briggs
2001 CC Affinity B&B 42'
Coach #5996


When you leave it parked (leveled) with the HWH in auto level does after the pop the compressor kick in and re-level the coach?
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Old 07-21-2020, 08:04 AM   #7
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HWH is off. I just back in and park it...shut it off w/o leveling or touching the HWH panel. I agree that it sounds like a valve releasing. I'll try and find that fuse...I've heard of that trick before...



Thanks to all for the replies!
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Old 07-21-2020, 03:00 PM   #8
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The HWH fuse is probably on the front run fuse panel. On my 2000 Magna and on the wire list for a 2000 Affinity the wire number is 274, a red 12 gage wire.

On my 2000 Magna the wire is fused with a 20 amp fuse on that fuse panel. It is the 6th fuse down on the fuses closest to the driver's side when looking at the panel.
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Old 07-21-2020, 03:38 PM   #9
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When parked in storage, I leave HWH in travel mode. No a/c comes on after drop...it just stays low. When in use, in auto level mode, a/c does come on to re-level however at that stage it's already dumped in order to level itself.
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Old 07-21-2020, 05:20 PM   #10
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It's time to contact AZPete to see if the HWH system can malfunction and cause what you are seeing.

He follows a lot threads on this forum. Do a search and find him then try a PM to him.
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Old 07-22-2020, 06:49 AM   #11
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Quote:
Originally Posted by RVMANIAC View Post
When parked in storage, I leave HWH in travel mode. No a/c comes on after drop...it just stays low. When in use, in auto level mode, a/c does come on to re-level however at that stage it's already dumped in order to level itself.


How often is the compressor coming on to adjust the level setting? Once a day I would consider somewhat normal. More often may help to narrow down where the leak is coming from.
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Old 07-22-2020, 08:27 AM   #12
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It's not so much a leveling issue? When I park it in my storage building, on a level floor, I do not engage the HWH to level it. I just leave it at ride height. About 2 hours later, right side drops. I can here the air release all at once...I have not yet attempted to be under there (with jack stands and other bracing to protect myself) to ID where the air is purging from.
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Old 07-22-2020, 08:39 AM   #13
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Quote:
Originally Posted by RVMANIAC View Post
It's not so much a leveling issue? When I park it in my storage building, on a level floor, I do not engage the HWH to level it. I just leave it at ride height. About 2 hours later, right side drops. I can here the air release all at once...I have not yet attempted to be under there (with jack stands and other bracing to protect myself) to ID where the air is purging from.
There should be a short line on the exhaust port of the level valve.

You could put an extension on it running out to where you can monitor it.

Then you will know if it's dumping the air out the exhaust port or not.

Just a thought. Better than being under there.

Happy Glamping.
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Old 07-26-2020, 01:31 PM   #14
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Check the water separator drain valve mine just failed. Also the glass housing bottom seal can leak. Just replace the seal with a O ring.
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