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Old 04-22-2008, 07:32 PM   #1
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Has anyone checked their GROUNDS lately.
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Old 04-23-2008, 07:51 AM   #2
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Intesting that this should come up. I have been posting in the Winnebago forum asking exactly where the physical grounds are and received no useful replies.

I have found the main ground for the battery on the frame. I found another ground just behind the grill. There is another local ground by the gas heater way in the back. I also found a ground for the dash behind the dash. None of these seem beefy enough to carry return current from the coach. I have cleaned them up and re-tightened them.

Are there more grounds and, if so, where are they?

I looked at the Winnebago wiring diagrams and they treat ground as a concept rather than as a physical reality. Only one, the battery ground, makes any reference to its location.

The problem that I am trouble shooting is a voltage difference between the DVM built into the coach and another DVM at the battery. Underr high loads the difference is almost a volt. This causes my gas heater to not fire as it perceives a low voltage condition.
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Old 04-23-2008, 02:41 PM   #3
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Someone may have an exact answer however, someware around 2002 Workhorse started welding the ground lugs to the frame. My W22 has welded lugs. Mine still appear clean so I have not backed the nuts off to check these.
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Old 04-23-2008, 05:53 PM   #4
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Bruce, every 12v device needs a ground return some of the grounds will go to chassis frame others to a buss bar. Some you may find in a compartment such as #6 ground wire to frame support of compartment where your converter may be and another for transfer switch.
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Old 04-28-2008, 08:45 AM   #5
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Here is some interest reading on GROUNDLOOP grounding for all your audio and TV interference questions you may have.
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QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
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