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Old 06-22-2022, 09:31 PM   #1
dstewart1111's Avatar
Join Date: Sep 2012
Location: Northern PA
Posts: 66
12v slide and level control problems

Have been having intermittent problems with the 12v system on my 2010 Allegro QBA 35. It has a HWH level jack system with a control station in middle of dash. Driver side slides are also HWH hydraulic Some times when I turn on ignition and start engine it will not light up or chime if jacks down . Happens with level jacks out or up. I just replaced a bad 12v converter and thought that might have been an issue but happened again. Also discovered that driver side window would not work either. interior light and steps worked fine.
Brake was set and I had just deployed jacks at a campsite and after getting items out of bins was going to put out slides. Was still running on generator power. When I went to restart engine to do slides the panel for jacks would not light and chime did not sound. Turned engine off and on several times and on fourth or fifth try the chime started kind of low and light on level panel lit. tried to put out one of the HYD slides it would not go and chime stopped and panel lights went out. Cycled the starter another time or two and then everything worked fine. And window went up! which was good as rain was coming. Next time it happens will have to see if one of the Swencke slides will go out.
Any thoughts?

Dave, Eloise, and Zander
2010 Tiffin Allegro Open Road 35 QBA
2020 Buick Envision Toad
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Old 06-22-2022, 10:04 PM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 30,492
Do you know the HWH series number for your system ?

My HWH system used an main inline fuse in a " waterproof " holder , and corrosion and heat caused this .

Panel would light up but nothing worked .
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Old 06-23-2022, 04:03 AM   #3
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Location: Three Oaks, Mi.
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Next time you are experiencing the problem, leave the ignition in the ON position. Go outside to the G6A panel, typically in the electrical bay under the drivers seat (on DP Class A's) Check that the Green Slide LED is steadily lit. If it is, then the safety interlock (Ignition On and Parking Brake ON) are both working. If Not, then those signals are not getting to the Board in the G6A panel, or they are potentially intermittent. Then the hunt for the problem would begin.

How old are your coach batteries? How low a voltage are the batteries dipping to when you try to activate the slides. This would probably be my 1st guess. Especially if the frequency, and extent (more items becoming intermittent), of the problem has been increasing with time.
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Old 06-23-2022, 10:26 PM   #4
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Join Date: Sep 2012
Location: Northern PA
Posts: 66
12v issue

Both are good ideas. will check them out. Will search hwh # and get back to you skip426.

Thanks so much

Dave, Eloise, and Zander
2010 Tiffin Allegro Open Road 35 QBA
2020 Buick Envision Toad
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12v, ems, problem, problems, slide

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