Question about Moen & One Handle Tub & Shower Faucet

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The shower turns on while I'm running the faucet without the valve being opened

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  • 334 Answers

The diverter needs to be replaced. It will probably be easier to just replace the whole tubspout.

Look for a allen wrench set screw on the bottom of the spout. If your's is not an allen screw mount, thenm remove the spout by turning counter clockwise.

Posted on Oct 03, 2009

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I have a newly installed shower with moen chateau shower faucet. After several successful showers, the water has completely stopped. what could be wrong?


There is probably junk in the lines that has clogged mixing valve Moen is pretty simple to operate and maintain, however, before the new system was installed, maybe it was done, the water should have been run through the valve itself, without mixing valve installed. I am going to provide you with a video that shows how to remove the valve and, with a little help, you can remove valve and hopefully can clear the lines by running water, slowly, through the fixture, without the valve installed. You would want to try this anyway to make sure you have flow to the faucet:
http://www.youtube.com/watch?v=J-SNBNijfQc
Make sure all junk is cleared from lines and re-install your valve. If your cold and hot water is backwards, remove the valve and rotate 180 deg. and re-install. You can note the way the tabs are when you remove, and install in the same position.

May 30, 2011 | Moen & One Handle Tub & Shower Faucet

1 Answer

Getting hot water when shower valve is first opened.


If I understand correctly, you have single handled shower faucet.
Normally there is a wait for hot water to arrive at faucet.
But now hot water is already at shower faucet.

Single handled faucets have a mixing area inside valve where hot and cold come together before going into sink.
This mixing valve can have crossover where the hot and cold can pass through to each other even when faucet handle is off. When single handle faucets get old, this can happen.
How it happens:
For example another faucet is turned on inside house, and pressure differential between hot and cold causes hot water at shower handle to pass through mixing area and into cold water line.
So if another faucet has been run, then that lets hot flow to faulty single handled shower faucet.
To confirm this is the problem: turn on other faucet and put ear against shower faucet to listen for moving water.
This condition may also signal there is a water leak.
The problem is not harmful, but will draw cold water into water heater each time, and is energy wasteful.
Replace faucet or have plumber repair problem.

Feb 19, 2011 | Price Pfister Single Lever Handle Faucet...

1 Answer

Moen shower valve turns on full to cold water but flow becomes minimal when valve is turned to warm/hot. not getting enough warm water to shower. can this be fixed without rplacing the valve?


yes and no. Find hot water heater and insure cold water supply valve is open all the way. check to see if there is a hot water supply value and that its open all the way. If you replace shower value over iron pipe on the hot side it is corroded up replace pipe and value. If copper, find hot side, find value and open it up.

Nov 28, 2010 | Moen & One Handle Tub & Shower Faucet

1 Answer

Installed new tub/shower valve, water comes out of showerhead when water is turned on even though spout is open


the diverter valve is probably bad. put a new one in. the valve cuts off the water to shower, while running bath water.

Nov 23, 2010 | Delta Faucet Plumbing

1 Answer

Shower head and bathtub faucet both running when showering


Sounds like diverter valve which is your shower handle valve is bad take it apart and check out and replace it if possible because that transfer water to shower head.

May 01, 2010 | Moen 3175 Legend One Handle Shower Faucet...

1 Answer

When I turn the faucet to hot ,water comes out of the shower without pulling the shower pullup


either to much water pressure to unit or pull up is clogging /damaged if u have separate valves on water supply start at half way and work ur way open or close till water doesnt come out of shower head

Feb 15, 2010 | Moen Posi-Temp Single HandleTub And Shower...

1 Answer

Faucet issue


Sounds like it was installed upside down or the cartridge is installed improperly

May 06, 2009 | Kohler K-T10335-4-CP Lyntier Rite-temp...

1 Answer

No water flow


Did this unit come with water stops built into the faucet body? Some of the newer faucets have stops built in and they need to be turned on. Also if you aren't going to plumb the hot in, you will need to cap it off but it should run without it unless it has some sort of balance in it. I don't think so though.

Apr 09, 2009 | Moen & Posi-Temp Single Handle Shower Or...

2 Answers

Just installed shower and faucet in bath tub when you turn the water on the water comes out of the faucet and shower head. When you pull the lever for just the shower the water cuts off at faucet and comes...


Verify the height from the shower valve to the Shower head, the instructions specify the correct distance if it is too short the pressure could be getting up to the shower head.

Perhaps the water pressure it too high at the valve not allowing all the water down the faucet outlet, there are set screws on the sides of the shower valve to adjust the water allowed in the mixing chamber.

Something is restricting the water flow to the faucet, creating enough pressure to send some of the ater supply up to the shower.

I hope some of these ideas help

Mar 01, 2009 | Plumbing

1 Answer

SHOWER HOT WATER SCALDING


hi as you are probably aware ,when the toilet is flushed the water pressure to the shower is reduced so you get hot/scalding water unfortunatly there is NO easy solution you could put a needle valve in the supply to the toilet and with trial and error by turning the valve down reach a compromise between the time it takes to fill the flushing tank and the shower temp the only real solution is to feed the toilet and shower off independent supplies but in most houses this is impractical if not impossible silk090

Jan 08, 2009 | Moen 3175 Legend One Handle Shower Faucet...

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