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Old 10-16-2019, 07:33 AM   #1
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HWH leveling system problem

Traveling, last two nights sites had "excessive slope" sites, when attempting to Auto Level, after system tried to level and came to the "excessive slope" stop, I noticed one of the jacks had not come down at all, one time it was the front passenger jack, the other time the rear passenger jack and in both cases it was the low corner of the coach, switching over to manual operation all jacks would operate as they should. Any ideas?
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Old 10-16-2019, 07:51 AM   #2
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I’m pretty sure that’s perfectly normal when the system detects excessive slope. I’ve noticed the same here and it all depends which jack is the last to deploy.
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Old 10-16-2019, 10:03 AM   #3
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Once you get the error message (excess slope) the system shuts down. What you are experiencing is normal. System levels side to side then front to back.
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Old 10-17-2019, 07:04 AM   #4
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Quote:
Originally Posted by resullivan View Post
Traveling, last two nights sites had "excessive slope" sites, when attempting to Auto Level, after system tried to level and came to the "excessive slope" stop, I noticed one of the jacks had not come down at all, one time it was the front passenger jack, the other time the rear passenger jack and in both cases it was the low corner of the coach, switching over to manual operation all jacks would operate as they should. Any ideas?
It's just you Richard. You have to many mods on one side or the other.

In all seriousness the system works that way. It starts with the low spot and extends that jack or pair of jacks first. Then it moves on to the second pair or a third jack and once it is fairly level it puts the fourth one down for stability.

Missed you at Hoots this year. You have to come next year it is going to be a big time.
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Old 10-21-2019, 09:55 AM   #5
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Quote:
Originally Posted by resullivan View Post
Traveling, last two nights sites had "excessive slope" sites, when attempting to Auto Level, after system tried to level and came to the "excessive slope" stop, I noticed one of the jacks had not come down at all, one time it was the front passenger jack, the other time the rear passenger jack and in both cases it was the low corner of the coach, switching over to manual operation all jacks would operate as they should. Any ideas?


Are you on a fairly level spot when this happens?
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Old 10-21-2019, 10:22 AM   #6
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Are you on a fairly level spot when this happens?
This is also happening to me, even if the spot is fairly level. HWH advised me to disconnect the 3000 PSI switch. This enabled me to auto level if the spot is fairly level. If you are not fairly level they said not to do the auto level until you get a new switch. They authorized me to install a new 3000 PSI switch under warranty. Not difficult to do. The problem is, it still didn't work. They then authorized a another one, thinking the part they sent me was broken as well. I'm now waiting for that part to install. A photo of the switch is attached.
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Old 10-21-2019, 11:11 AM   #7
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The HWH jacks are smart, but not that smart. As they work to get the coach level, they can lift higher than necessary on one side and then the other side needs to catch up. This happens as all four jacks lift. The problem.....they can overlift, but don't have the ability to lower themselves if they over extend.

When the Excessive Slope light comes on and I think the coach should have leveled properly, I'll manually lower the coach, especially the side that I think lifted to high and try auto leveling again. Very often, the coach will then level as it should.
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Old 10-21-2019, 11:38 AM   #8
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The HWH jacks are smart, but not that smart. As they work to get the coach level, they can lift higher than necessary on one side and then the other side needs to catch up. This happens as all four jacks lift. The problem.....they can overlift, but don't have the ability to lower themselves if they over extend.

When the Excessive Slope light comes on and I think the coach should have leveled properly, I'll manually lower the coach, especially the side that I think lifted to high and try auto leveling again. Very often, the coach will then level as it should.
Don, Not sure if this applies to my situation and the OP. When it happens on mine 1 or two jacks do not come down at all and then the excessive slope light comes on even though the space is almost level. Think you are getting all your jacks down and then excessive slope light?
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Old 10-21-2019, 12:10 PM   #9
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had the same issue in my 625 series was a bad proportioning valve
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Old 10-21-2019, 10:49 PM   #10
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Slightly different scenario, but when I was in ND last summer, i was constantly getting the “excess slope” light, even on very level sites. In addition, front jack on passenger side was not extending. This was typically the last one to deploy.

It happened that HWH had techs on site (FMCA International Rally) so I stopped by their booth and they sent out a tech.

He quickly diagnosed my problem as a defective pressure switch in that right front jack. He explained the positive lead feeding power to that switch sometimes pops loose, particularly when it gets installed with inadequate slack. When that happens, the switch often shorts out as “on” and tells the controller that the jack is deployed when it is not.

The tech, who turned out to be the head production manager at HWH, quickly replaced the switch and the jacks have worked perfectly ever since. No charge!
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