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Old 06-23-2021, 03:50 AM   #1
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Fresh Water Not Draining

My 2014 Mountain Aire will not drain water from below. I turn the valve within the water compartment to drain and nothing. Turning the valve in open closed positions & looking from below I donít think the valve is working cause all I see is the ball of the valve. Also, canít figure out is I get to 30% fill & no water will come out of faucet or commodes plus the water pump keeps running acting as though there is no water. I can see the water line in the tank which is around 30%. Fill more water and the water pump works with running water. Appreciate what you think is going on. Sounds like I may have a couple of issuesÖcanít drain water no matter how full the tank is plus no pumping of water at around 30% fill.
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Old 06-23-2021, 09:14 AM   #2
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Sam, regarding the drain valve....if you have the same kind I have on mine MA, it's a cheap little plastic handle that easy strips and won't actually turn the ball valve. Mine is barely visible tucked way back in behind the water bay and my installed sanicon, but if I contort around enough, I can back in to it. I took the old handle off and just use a small vise grips to turn the valve. As soon as I can get around to it, I'm going to pull the sanicon out so I can have a little better access and change the valve to something more substantial...and perhaps even reroute the drain piping so the valve is actually in a convenient location.

I can't venture a guess as to why the pump would act one way when you have less than 1/3 of a tank of water and another when more than that. My first thought was that you didn't have your selector switch to city water so the pump was just cycling water back into the tank. But it would do that no matter what the level of water in the tank if the selector was incorrectly in the position to fill the tank.
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Old 06-23-2021, 05:18 PM   #3
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As to the drainage, have you opened the bottom drain valve - or just the hot and cold line drains? I ask as I recently forgot about that drain valve, to see it need to look below the coach and/or look into cutout area in service bay.
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Old 06-23-2021, 06:14 PM   #4
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Ur correct NCC about the cheap plastic handle located in spot that requires long skinny arms to access. Spoke with Mike Bianchini, Newmar Mtn Aire Specialist, & he said their is a screw on top of the handle that can get stripped allowing the handle to turn but stay in the closed position. Recommend I try holding the screw while turning the handle to see if that will open up the valve. Hard enough to get one arm in that back area. Out of town but will try this weekend what Mike recommended. If that doesn’t work then try ur approach. Best is to take the sanicon out & put a substantial handle as a replacement. As far as the inability to pump water with 1/3 Mike sent me the trouble shooting sheet on the water pump. He believes it may be a defective pressure switch since there are no leaks. Newmar carries the part. The exploded view of the pump shows 2 screws holding the cap end followed by the pressure switch. I’ll see the cost of the switch vs a new pump & go from there. Will update this thread with the outcomes. Tks.
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Old 06-23-2021, 06:17 PM   #5
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MCRV I turned the main water dump valve vs the 2 low points. Believe the screw is stripped. Will soon find out. Tks
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