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Old 02-24-2014, 04:00 PM   #1
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Computer board under curb side of coach?

Was under there yesterday greasing the front end and came across this enclosed box with a clear plastic cover and seen that it was a computer board and not small! About 10"x8" In front under passenger feet.
And, WHY would they put it there exposed to debris from the road hitting it?
What does that computer board do?
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Old 02-24-2014, 04:15 PM   #2
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Just a wild guess here but it might be for your jacks ? I know my jacks computer board are under the drivers side of my coach .
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Old 02-24-2014, 05:11 PM   #3
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Here is a picture of it.
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Old 02-24-2014, 05:33 PM   #4
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That's the HWH hydraulic jacks/slides control box.
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Old 02-24-2014, 06:06 PM   #5
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That looks expensive! I'm shocked that it's not protected a little better under there.
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Old 02-24-2014, 08:55 PM   #6
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I've never seen any evidence of debris or potential damage to the plexiglass cover over that circuit board on ours. Download the HWH troubleshooting checklist which explains that circuit board and how to use it in diagnosing an electrical problem with the HWH hydraulic system. That seal is a real challenge if you have to remove the plastic cover to check any of the fuses.
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Old 02-24-2014, 09:34 PM   #7
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Well let's hope it keeps working and won't get something thrown at it. Must be tough plastic. As much work I have done on this coach this is the 1st time I noticed the control box. Changed the oil on the gen but never noticed. So now I know what it is. My guess was the dash computer module.
Thanks for the info!
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Old 02-25-2014, 03:04 PM   #8
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I just removed that seal and cover so i could get in there and read some of the #'s on the circuit board as I have an electrical problem and according to the manual, some lights will tell what to do. the gasket is a b---- to squeeze on with the cover, but I took some dish soap and lined the groove with it and it made it much easier to get on.
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Old 02-25-2014, 05:19 PM   #9
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My board went bad and after diagnosing with the Tech on the telephone it was determined the board was bad. I said well I guess I have to take it to some RV shop to have it replaced. The tech said not if you are the least bit mechanically orientated. He sent the board ($431.69 in Dec 2010) and I replaced it. Not a major effort but the connections on the back were a tad difficult.

Hey, Barry, Nice looking motorhome (post 8 above).
Bob
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Old 02-28-2014, 06:48 PM   #10
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Quote:
Originally Posted by dnystrom View Post
Was under there yesterday greasing the front end and came across this enclosed box with a clear plastic cover and seen that it was a computer board and not small! About 10"x8" In front under passenger feet.
And, WHY would they put it there exposed to debris from the road hitting it?
What does that computer board do?
As others have stated, that board is safe. Yes, it is the HWH jack controller. Near by is the tank. Most likely you access it by lifting one of the step treads. This is where you check your fluid level. Jack tweaking is done at the board.
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Old 03-16-2014, 09:37 AM   #11
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I also had a problem with the control board. When I moved the slide out rocker switches, they would just "click" Only after moving the rocker from "in and out" several times would the slide's move. I called HWH and ultimately sent them a movie clip of the LED lights as I moved the rocker switches. It was determined that the board was bad. I removed the circuit board, (the plugs are tough to remove, especially the plugs on the back of the panel) I sent the board to HWH and in a week it was returned and the bill was only $64.00 and that included the freight charge. I have a $50.00 deductible on my extended warranty and for $14.00 it wasn't worth submitting a claim.
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