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Old 06-24-2012, 01:04 AM   #1
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Join Date: Jul 2011
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Level sensors not working

My HWH auto-leveling raises the front right of the coach way past beyond level. I always have to prematurely stop it as it would've gone too high. I'm guessing that I need to clean some connectors somewhere.

Today, I also noticed that the left rear jack did not go down at all. I'm not sure if the two are related.

Any ideas or experience? Thanks in advance.

1996 36-foot Country Coach Intrigue

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Old 06-24-2012, 02:35 AM   #2
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Here is HWH Customer Service for technical info and manuals. Identify your system and get what you need off their website. If you get stuck, they are great to help you when you call with the information you have. Good luck and keep us posted.

Mike, RVIA & RVSA Certified Master RV Technician
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2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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Old 07-13-2012, 09:29 AM   #3
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in your service manual, there is a section on excess slope. it covers the pressure switches located on the jack cylinders. this is most likely what is causing the front to raise too far.
if the system goes to excess slope, it will not put the last jack down. it just stops and will not stabilize. the system has to see both front pressure switches together to work. the rear pressure switches work individually. if you order pressure switches from hwh. the part # is RAP8003. it looks different from the original, but works the same. its 220 psi, instead of 140. that a good thing.
unless you can do the test needed. this is the field repair used by most techs.
replace one of the front pressure switches, with a new switch. you can do this with the jack retracted, and the unit at ride height. run the level system in automatic. if that doesnt work, use the old switch that you just removed, and replace the one on the other side. its not normal to have both front switches bad at one time.
use your service manual, fred did a good job writing them. the diagnosis is based on actual repairs, and not just theory.
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