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Old 01-22-2012, 10:06 PM   #1
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Workhorse Chassis Owner
Join Date: Dec 2004
Location: Ohio
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2001 CC Affinity 42'

The left front is lower than the right side both when the air is dumped and when it is in travel mode. There is also a leak somewhere, that allows the front to lower after the coach has been leveled. Understand the leak situation, but not the left front being lower when the air has been dumped?
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Old 01-23-2012, 05:38 PM   #2
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Country Coach Owners Club
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Location: Redding
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I will not be of much help. But I have a similar system.

First, I would refer to the HWH Manual. http://www.hwhcorp.com/ml19048.pd is the correct one I think.

It seems to have a step by step process for troubleshooting with some exhibits and diagrams.

Obviously, the ground attitude could appear to have the coach leaning when it is actually level. Are you determining the left front lean via the lights on the Control Panel or by measuring with another level mechanism?

Does the system vent air that you can hear, or is the electric pump activating after the rig has been leveled awhile to restore coach level attitude. In the first 24 hours of being leveled and parked, my rig will do some venting and leveling, then it pretty much locks in for the duration of the stay.

Does your HWH control panel display the green Travel Mode light when the coach is shifted into gear and has 100 psi of air pressure. If not, then it is not level and you should not move the coach.

Can you level the coach using the automatic or manual buttons so that the indicator lights display properly for a parked situation or a travel situation?

If so, you could get the coach level in the travel mode and then disconnect the fuse for the HWH. Then you should be able to move the coach. I would call HWH for guidance before doing this.

With answers to the above, I might be able to suggest other steps. Or you might get lucky and someone will have your answer by then.

A leak should be identifiable by sound or spraying the air lines and bags with soapy water and looking for bubbles where the air is escaping.

If the entire front lowers due to the leak that would indicate the air valve sticking open? My did that and a tap with a wrench fixed it. It is behind the driver front bumper.
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Old 01-30-2012, 02:49 PM   #3
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Workhorse Chassis Owner
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Location: Ohio
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Quote:
Originally Posted by hawg6 View Post
The left front is lower than the right side both when the air is dumped and when it is in travel mode. There is also a leak somewhere, that allows the front to lower after the coach has been leveled. Understand the leak situation, but not the left front being lower when the air has been dumped?
The distance from the right tire to the fender opening is approx. 1", while the left fender is approx. 1/2" below the top of the tire. The rear open ins measure the same on both sides. This is with the air dumped. The system does vent air both front and back when the dump switch is presses. The MH will level when the automatic level button is used, but the front lowers within a couple hours. The travel mode light shows with the coach air dumped, but will raise to to the travel height when the engine is running. The left front is still approx. 1 1/2" lower than the right side when raised in the travel mode. Will try to detect the air leak tomorrow when the temperature get into the high 50's to 60 degrees.
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Old 01-30-2012, 08:11 PM   #4
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It sounds like your rig is not parked on level ground because the HWH system will level the coach.

So what is telling you the rig is not level after the air is lost?

Is it the four corner yellow lights on the HWH panel? Or are you using level measuring device, or a pan of water? Those yellow corner lights on the panel are my gospel of level. I certainly cannot measure or eyeball level on non-level ground by looking at the coach.

If you are parked on unlevel ground, the body of your rig could appear to be leaning with one side or end higher than the other. Measurements will also be different.

This is true:

with the air dumped because the body is at the levels of the chassis.

with the rig in travel mode.

with the rig in the leveled status.


Can you get to perfectly level ground and observe or measure the change in attitude?

Reading your description tells me your rig is working properly but is doing interim adjustment during the first 24 hours after the engine compressor is shut down.

This would be a release of air as the coach settles in and weight distribution changes inside the coach or adding air via the electric compressor if a corner needs to rise.

If all the above is not applicable, then you have an air leak. But a sudden release of air is not a leak, it may be just a leveling adjustment.

If you can continually hear escaping air during the two hours the air is being lost then you have a bag leak or a line leak.
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