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Old 06-05-2021, 09:36 AM   #1
bjogan
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Anderson Valve Issues

We have a 2020 Mobile Suites 36RKSB. Twice now, the fresh water tank has overfilled while the Anderson valve was supposedly in the "City Fixtures" position .

Water pump was not on. There should be no water going into the fresh water tank when in this position.

I did notice that both times, the valve was first in the "Dry Camping" position then rotated 90 degrees to the "City Fixtures" position. In both instances, the valve was very difficult to rotate (no-I did not use pliers).

Anyone ever had this happen to them? Any thoughts? What am I missing?

Thanks,

Bryon
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Old 06-05-2021, 10:11 AM   #2
porthole
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DRV has used 3 different versions of hte anderson panel that I know off.

Which one do you have - picture.

The newer versions have a check valve on the tank fill line.

The safest simplest fix is a 1/4 turn valve in the the fill line.
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Old 06-05-2021, 11:37 AM   #3
bjogan
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Porthole,

I believe it is the MANRV102

Picture attached.
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Old 06-05-2021, 08:02 PM   #4
porthole
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There have been 2 new versions since that one.
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Old 06-07-2021, 08:58 PM   #5
Roam America
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I had same issue with mine and the valve was replaced twice. Then one of the techs told the process for switching to/city water and tank fill mode. Been using it for 2 years now without issue. There is an O ring that leaks if the valve is rotated under pressure. A few rotations of the valve will reseat it.

First turn the water supply off. Then open the hose in the wet bay to relieve the pressure on the supply side of the valve. Next at the bottom of the plumbing “manifold” open one of the low point drain valves (I usually use the cold water valve). This relieves pressure on the back side of the valve. Now you can rotate the valve handle. I seem to recall him saying that if you turned the valve to the left (city water to tank) then rotate in the same direction to return to the setting you want. It’s only 2 positions so what the heck.

I’ve never had a problem since using this procedure, and I’m constantly adding water to the fresh tank.
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Old 06-08-2021, 12:20 PM   #6
Cummins12V98
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YES, remove pressure first.
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Old 06-09-2021, 10:08 AM   #7
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Quote:
Originally Posted by Cummins12V98 View Post
YES, remove pressure first.

ALWAYS before turning the valve.
Clay
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