Camping for the second time with the coach. After leveling all yellow lights out and all was fine. 3 days later I noticed that the excess slope light was on along with the red auto level light. Coach never moved and when I turned the leveling system off and back on the rear yellow light is on and the auto light never stops flashing. The 12 volt compressor was running and after 5 minutes I shut the leveling system off to stop the compressor. Both air gauges are at 0 Does the 12 volt compressor just air the bags or does it have to get the tanks aired up to level the rear?
I think the excess slope light means you are on a slope past what the system can over come, 4" end to end or side to side. The level system will try to level if it can't it will turn on the light. I carry 4 4x12 blocks just for that. My coach just doesn't work well at the very limits of level.
The coach is on a pad that is almost level. When we arrived and used auto level, it dumped some air in the front and it was level. The coach has not been moved and it took over 3 days for the excess slope light to come on. I am sure it has something to do with the 12 volt air compressor running too long.
We mentioned this while at HWH for a checkup last spring. The tech allowed that this was a glitch in the computer system??? Process to reset was to 1) turn key to on position, do not start motor, 2) step on brake, 3) take off the park brake...excess slope light should go off. 4) reset park brake and turn off key. This happens to our coach infrequently, but it occurs usually on a flat, level site. Weird...
@Craneman This is how I understand it. Take it for what it's worth.
You have a small leak somewhere in the leveling system. After 3 days you reach an out of level condition. The HWH wakes up sees it's out of level and tries to level. There is no air in the dry tanks (due to acceptable leak down) and it tries to level using the aux air compressor. It exceeds the maximum time set in the HWH to reach level and throws an "excessive slope alarm". Exactly what it's supposed to do.
Things you can check/do ranked from easiest to hardest.
- After leveling turn off the HWH (you will slowly go out of level over time)
- Make sure aux air compressor is working correctly
- Fix leak in leveling system
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see ya
ken
What Ken said, with some extra. If you do 1, measure the between-plate height of each air bag over time (and graph it if you're a geek like me). That will tell you which corner is leaking down and it will help you debug for 3.
Leak can also be a leak into an airbag- my coach was "low" on one side regularly when I had air leaking past a solenoid into an airbag.
Keith Risch from MOT figured it out by hanging a LARGE (1" ID?) diameter flat washer from a string held on by masking tape at each corner of my coach. Washer was set to hang 1/8" above ground at each corner. Leak was found when the low side had not changed, but the high side had went up 1/4". Additional advantage of this approach is that diagnosis does not have to be overnight - once you hang the washers, often you can see the movement and start looking for the problem after an hour or two, since the 1/8" gap going to zero or 1/4 inch is very easy to see visually - much better than waiting 4 hours, 8 hours or overnight to see the trend.
Is there any HWH air level that works correctly??? Mine leaks in right rear has new air bags all around, no leaks on them at the bag.
Is there a solenoid that is responsible for the area alone.
I guess my question is does each air bag have assigned solenoid to operate it ? If so where are they ?
Rick Maddox
rlmlimited@comcast.net
509-939-0740
If you wish to understand how the HWH air leveling system operates, I recommend the documents linked below:
http://www.hwhcorp.com/ml20635.pdf
http://www.hwhcorp.com/ml11148.pdf
Solenoid failure probably in the rear hwh six pack