20 Most Recent Moen 3175 Legend One Handle Shower Faucet With trol Pressure Balancing Valve.... - Page 3 Questions & Answers

Assuming that you have hot water everywhere else my thoughts are that you have a small bit of rust,sediment or other foreign matter in the control cartridge. It's possible that the scald guard feature of the faucet has slipped so it's not allowing hot water to get thru. Either way if you purchased this new moen will provide replacement parts free.If you are mechanically inclined you can perform these repairs yourself and save significantly.Last time I checked the cartridge,scald guard balancing valve are all one part and cost about ninty bucks. Prepare to be patient and call 1-800-BUY-MOEN. You will need the model number,approx. age and explanation of your problem.Good luck. Hope this is of some help to you. Thanks.P:S they will generally provide installation,adjustment instructions and trouble shooting tips if you ask.

Disconnect water heater. It'll solve the "gets hot" part.

This is taken from the Moen manual. You can download it here:
http://www.moen.com/shared/pdf/instruction_sheets/ins162e.pdf
Balance Spool Maintenance
The precise and instantaneous pressure control illustrated has been
achieved through the balancing spool, which has been manufactured to
exacting tolerances.
During construction or valve installation, foreign material such as solder
flux, pipe cuttings sand, dirt or wood is unavoidably introduced into the
water system. Occasionally, however, rare, these foreign materials can
cause the balancing spool to become stuck temporarily between the
rough-in and trim-out operations. If this happens, it will be apparent at
the trim-out test, in that the valve will deliver only a small trickle of water
or it will deliver only hot or cold water. If this occurs, proceed as follows:
1. Make sure that both the hot and cold water service lines are ON. Also,
make sure that both screwdriver stop-check valves are open. The valve
WILL NOT OPERATE unless both supplies are ON.
2. If the valve still does not function properly, turn off both the hot and
cold supplies and remove the balancing spool, using a wide blade
screwdriver. The inner piston of the balancing spool should shake
back and forth freely. If this is not the case, jar the spool on either
end to remove the foreign material and free the spool. When the
spool is free, replace it; turn ON both water supplies and the valve
will function properly. If you are unable to free the inner piston,
replace the entire spool.

Remove the faucet handle and trim. Close of the check valve stops on each side of the valve body with a flat screwdriver. Remove the balancing spool and Moen cartridge. Look for and mineral buildup in side the faucet and on the spool or cartridge. If there is buildup on the spool and cartridge, place them in a large bowel with a cup of vinegar and a teaspoon of baking soda. The solution will remove the buildup in a few minutes. Replace the Moen faucet parts and test the faucet. If there is buildup inside the faucet body, use a wire copper fitting brush to the remove the minerals from inside the spool and cartridge tubes of the faucet body. Turn the stop valves on just a little to wash out the debris before reinstalling the spool and moen faucet cartridge. If the is is still no pressure on the one side or the other, turn off all the water to the house and remove the check valve stops, clean them as well and the inside of the faucet. If all else fails, replace the stops, spool and cartridge. Beyond that, the water supply lines may need to be flushes with the same solution.

Hi cgra--
Two ideas:
1) Shoot a little penetrating oil into the area around the brass screw hole and anywhere else you can see where the handle contacts the control stem. Then gently wiggle, push/pull, and/or tap until it seperates. If you can get a long, narrow flatblade screwdriver behind the handle, you can try that as a prybar, too. When the handle does come off, get it into a bath of soapy water immediately--the penetrating oil may melt the plastic.
2) Go to your local hardware store and look for a faucet-stem puller. The puller works much like a gear or bearing puller, but without lots and lots of torque. You may want to use a dash of penetrating oil again before using the puller. You could also substitute a large puller--if one is handy--while only using a GENTLE pulling force.

A final note. If you do apply penetrating oil and nothing frees up, liberally wash the handle until that oil is gone. The plastic could melt and only tighten the handle where you don't want it.
--Hope this helps

There are several products that can be used to loosen the corrosion holding the handle in place. The Works is one product along with CLR. The easiest fix is to wrap a washcloth soaked in distilled white vinegar around the handle. Let it soak for 20 minutes at a time. It could take a half dozen times or more, but eventually it will work. Rinse the faucet after each application to remove the acid. You may also need to use this process to remove the Moen faucet cartridge.

The faucet may be installed upside-down.

there is a splined adjustment just under the handle of the 3175.

you need to remove the handle, usually held on with an allen screw
once you remove the handle, there will be a black "stop" held on with a screw, remove that, but remember its position.

once that is off you can adjust the temperature. there will be 2 white pieces, one has splines, you can move this counter clockwise one or two notches at a time untill you reach your desired termp.
be careful not to go too much, even though these are an anti scald valve, you are letting more hot water through it.

usually flush with the tile. although moen does make an extension kit if you goof and set it too far into the wall

The "gears" are simply to restrict the handle from turning to too hot a setting. Mostly if you install them lined up to the top you'll have maximum handle travel to the fully hot setting if that's what you want. Remove the shower head and see if the flow from the pipe is strong. If it is then the blockage is in the head itself. Check for buildup in the screen and clean it out. There is also most likely a flow restrictor in the head which can be pulled out with needle nose pliers. If the cold runs OK and it's just the hot that's slow you may need to clean the cartridge in whit vinegar to free up the pressure balancing slider.

you will probably need to replace the cartridge in the faucet

It sound like you have sediment blocking your valve, faucet airiator or shower head (depending on what you're using). FYI: if it turns out to be defective all Moen faucets and showers have a life time warantee.

You need a faucet handle puller, you can get these at most home center and hardware/plumbing stores.
Once you get the handle and cover off you might just find that the control was never fully mounted.

If you are talking about a MOEN cartridge then the rest has to be removed as well. Did you remove the horse shoe clip? If so then use a wrench to try and turn the cartrige from the ears and get it loose. The use whatever you can to try and pull it out. They can be very difficult at times. I hope this helps.

Check behind handle and see if there ia a dial to move to different settings. mark where it is and remove move about a 1/4 turn this affects hot & cold ratio. if turned to far all you will get is cold.

If you have to remove cartridge shut water off remove ring holding it in, you may be able to screw handle back to it and try pulling forward to get it to release. Some will stick if been in a long time. just be easy with it.

If you haven't turned the main back on, this could cause the sound.
Re supply the water to the lines.

Take handle off and it is a dial that restricts water to safe temp. You can adjust temp that way.

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.

pretty sure that model has shut-off's/stop's.they are on either side of the center of faucet,they take a slotted screw-driver.check that,and the balancing spool could be clogged,if the stop's are open check the cartridge real good,as well as the faucet body for any debris. if you end up pulling the cartridge flush out the valve body to prove flow from both hot,and cold.

The stem in faucet may be in faucet upside down . you can try taking handle off remove nut that holds stem take it out make sure
you turn water off before doing this.