Question about Moen L3175 Chrome Legend Single Handle Posi-Temp Pressure Balanced Shower O

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Moen L3175 faucet with low water pressure

I have a moen L3175 shower faucet. It is a single handle model. All of a sudden the water comes out about 1/4 of the usual pressure. Both hot and cold water is effected. Other faucets in the same room and other rooms are fine. Thanks for any recommendations you have. Faucet is about 11 years old. Is there a kit to maybe replace a sticking valve? The faucet has individual screw shut offs on each of the supply lines. I think that is what they are.

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Posted on May 10, 2010


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What do the 3 screws on the moen L3175 shower faucet do?

Two screws hold the cover plate. Behind the plate on some models you might find 3 screws. The two smaller screws on the left and right side of the valve shut off water to the valve and the larger screw on the right side of the valve is the pressure balance spool. The spool is all one piece.

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Why will the water not come out of shower only model

You can try that but sounds like a blockage

If you need further help, reach me via phone at

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No hot water on Moen single handle shower faucet. cold ok and shut off is fine

do you have hot water elsewhere? if not, might be that your water heater is not heating.
if you do have hot water elsewhere, did you let the faucet run for a minute or 2.
did you have hot water before? is this a new house? new valve?
need a little more detail.
on posi temp valves, if there were no water coming out of the hot side of the valve, the valve will not operate.

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1 Answer

How do you remove the Handle on the L3175? There is a recessed "screw" without any way to remove, screwdriver does not fit, it seems to be smooth. There must be a technique I am unable to figure out.

On the underside of the handle there will be a set screw, usually an allen key that will need to be loosened. Once you do this the handle will pull right off. The moen website shows an exploded .pdf view. I found your model by searching with the model name, Legend.

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1 Answer

& One Handle Tub & Shower Faucet : i have a moen shower faucet and i get not hot wate...

these valves can be adjusted by removing the handle and adjusting the white gear that regulates the hot and cold that come out, try going more to one way if it gets colder then go the other way.

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1 Answer

Moen Single Handle Shower Faucet-turn on get cold, little hot

You can try to rotate the first plastic ring to the left of center a few teeth, this will let the handle advance alittle more to the hot side.

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1 Answer

Single handle shower no hot water.

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Hot and cold backwards on a moen shower faucet

tun off the water.
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