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Old 06-05-2009, 04:28 PM   #1
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No Hot water in Shower...ugh.

Seems this is our summer of minor fixes. First the sink sprayer went haywire, then the roof vent lid, and now our hot water in the shower. All little stuff but still something to spend time fixing. Having been a travel trailer owner for about 15 years I'm used to it though...comes with the territory.

So, on our Memorial Day weekend campout in our 07 27FB Safari we had to use a bucket of hot water in the shower because we couldn't get any hot water at the shower fixture. The hot water for the bucket was supplied from the kitchen sink. Good flow of hot H20 in the bathroom sink and kitchen sink but not the shower. Good flow of cold water in the shower...but no hot water. That shower handle is the rotating lever type. Down for off...rotate counter clockwise upward for cold...then all the way counterclockwise for hot. I noticed also that when I rotated the lever all the way to hot that the water pressure went to almost nothing at the shower head. This tells me there may be a gasket, seal or o-ring getting pinched or bound up when the lever rotates around to the hot zone. Would you agree? My plan is to remove the cosmetic plate (two screws) and pull the unit out of the shower wall and take a look at it while rotating the lever. Hopefully it's something I can tweak and fix on the spot without having to replace a rubber part. But something tells me it's probably related to temperature changes during storage months and the rubber part in question is kapoot.
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Old 06-05-2009, 04:40 PM   #2
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Make sure the bypass is correctly adjusted for hot water use. If bypass is on, little to no hot water would be a good indication. In addition, if the valve configs are not set correctly at all, no water will pass through the hot side.
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Old 06-05-2009, 04:45 PM   #3
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There is a cartridge inside the handle that can be adjusted or replaced. Also sometimes it just get stuck. Your AS dealer has the part it is probably a Moen faucet. Ours screwed up on a 2 week vacation. Good thing we tow with an Interstate, we used the shower in it. jim
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Old 06-05-2009, 04:49 PM   #4
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I checked the valves and rechecked after looking at the settings in the owners manual so I'm pretty sure the problem is at the handle in the shower. It's a Moen. Gonna look on line for a manual ...was reading some similar old thread on this issue just now and found some good input there too.
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Old 06-05-2009, 04:52 PM   #5
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From what you describe you have a pressure balancing valve,if AS is still using moen then I know the cartridge is the culprit.Due to not being used they will freeze up inside and not balance inside.There is not really much you can do ,except install a new cartridge.Moen will send you a new cartridge 1-800=289-6636 .Remove handle,allen wrench up thru bottom of lever,then phillips screw,then 2 phillips holding on big trim plate,remove collar around valve.there is a clip to the back of the valve,remove it.Now you use the little white plactic tool that came with the cartridge ,slip in in the groove and rock valve back and forth till it begins to rotate.Now you should be able to pull cartridge out with pliers.Make sure it all comes out.There are times when a little piece out of the end wants to stay in there .Install new cartridge ,usiing plastic tool to align,so clip will go back in.Once clip is in ,it is time to turn on water,with this cartridge you cannot tell if it is off or on when you install it.Use pliers to turn to off ,and repeat the steps to put it back together.Should work.Dave
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Old 06-05-2009, 06:02 PM   #6
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I checked the valves and rechecked after looking at the settings in the owners manual so I'm pretty sure the problem is at the handle in the shower. It's a Moen. Gonna look on line for a manual ...was reading some similar old thread on this issue just now and found some good input there too.
We had to replace the mixing valve cartridge in the shower of an '04 Bambi a couple of months ago. His complaint was all hot water, no cold. I replaced the valve, and he had water in the proper proportions.
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Old 06-05-2009, 06:13 PM   #7
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Moen part #1222 list price $64.05,that makes it worth having Moen send you one,since we have so many snow birds here ,every fall it`s the same thing,changing out cartridges,sometimes they are stuck on hot and sometimes on cold.Dave
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Old 06-05-2009, 06:20 PM   #8
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Moen part #1222 list price $64.05,that makes it worth having Moen send you one,since we have so many snow birds here ,every fall it`s the same thing,changing out cartridges,sometimes they are stuck on hot and sometimes on cold.Dave
That's the one. It's not that tough a repair, just pay close attention to how the old one comes out. Which way is up makes a big difference.
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Old 06-05-2009, 10:30 PM   #9
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Call the Moen 800 number and talk to them before pulling cartridge. You may not need a new one. When I talked to them they were most helpful, Pay close attention when pulling the retaining clip. They are easy to loose.

Jim
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Old 06-05-2009, 11:08 PM   #10
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Same problem.

Hi, I had the same problem a few years back. I took the shower valve out and all apart. I found nothing visably wrong with it. Put it back in and tried it and it still wouldn't work. I bought a new cartridge at Home Depot for about half the price mentioned above. My shower has been working fine ever since.
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Old 06-05-2009, 11:15 PM   #11
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That's the one. It's not that tough a repair, just pay close attention to how the old one comes out. Which way is up makes a big difference.
Hi, actually Moen says you can install it up-side-down if you want, to have the hot water come on first, but I chose not to change things. Getting burned might be your first clue that you installed it wrong.
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Old 06-08-2009, 09:23 AM   #12
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great information here! Thank you all! I will call Moen.
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Old 06-11-2009, 02:08 PM   #13
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The Moen Technical dept sent me instructions for cleaning the cartridge.
They seem farily simple...so will do that. If that doesn't work they will
send a replacement.
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Old 06-12-2009, 08:58 AM   #14
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When Moen first came out with the pressure balance valve,shortly after that we encountered them sticking.At first we tried to clean and regrease them,but we had too many callbacks after a few months.A plumber goes broke on callbacks,so since then we gave up on cleaning.I think Moen is just trying to get cheap.Dave
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