Richard,
If you are referring to the valve body of the leveling valve, I agree. Some kind of internal failure in the leveing valve could cause it to exchaust when it should not. I have discounted that in my case as the valve is new and the problem was observed after valve replacement. I have tried to attach the HWH schematic although it is not correct for my particular coach which has only two six packs and the tag is supported through the six pack for the drive axle. Thanks, Russ
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