I am installing the valve housing for a moen shower. before placing the handle on the stem do I have to remove the cotter pin?

single cartridge? pull old one, flush some water through empty valve then install new cartridge. once installed, make sure the horseshoe clip is properly inserted to keep the stem in. once the clip is in right, there is a chrome tube with a ridge that slides over the barrel and the clip. the ridge acts as the stop for the handle. also make sure there are stops inside back of handle to hit the ridge on the chrome tube. the plastic inside the handle may break off allowing the handle to spin. the stem unit/cart may also be installed 180 degrees out of place. pull the lock clip and use the remover tool that came with new cart to rotate it 180 degrees with water supply turned off.

just take a drywall knife and place it btwn the handle and button and pry off...should nt be the turning type as moen doesnt make those..once you have the handle off make sure water supply to house if off..cartridge has cotter pin to remove but will still be hard to pull it out..use a bit of muscle as suction is created but it will come out after removing cotter pin

Is your shower valve a single handle. If so I would reccomend you change cartridge. To do this shut off water to valve or house. Remove center cover on valve handle,most of these are just friction fit so gently pry off with knife point or small screwdriver. Remove handle by pulling straight out,then remove chrome cover that fits around outside of valve. Ther is a small copper retaing clip that holds valve in place. It should have a small hole in tab that is on top of valve. Grasp this with pliers and pull up to remove. Then remove cartridge by pulling on cartridge stem. If it's doesn't come out you can get a moen cartridge puller at hardware store. Remove old cartridge,install new one and reinstall retaing clip. Reinstall chrome cover and handle.Turn water back on and try shower valve to see that cold is on the right side. If it's not remove handle and turn center stem 180 degrees.This will change cold side to right. Put handle back on with cover and you sould be done. Hope this helps. Thanks

You need to replace the valve stem. Turn off house water, locate and loosen handle set screw, remove cylindrical cover, and remove retaining nut to access stem. Take e stem with you to a home store or plumbing supply house for accurate relacement.

Follow these steps.

1. Remove Set Screw in handle and remove handle.
2. Remove the 2 screws from the handle housing and remove the housing and escutcheon from escutcheon adapter plate.
3. Remove valve stem screw and valve stem coupling.
4. Remove the escutcheon adapter screws and escutcheon adapter.
5. Using a pair of pliers pull the cartridge retaining clip out of the valve.
6. Grasp the cartridge by the stem and pull out.

I hope this is helpful to you, please rate if this answer was of any help. Good Luck and have a great weekend.

Once you have removed the U shaped cotter pin whis is brass in colour. Use a pair of plyers and hold on to the brass stem. you will need to pull fairly hard to remove. If you have the white or black stem loosening knob which comes with the replacement cartridge you can insert that into the brass cartridge where the plastic sides of the cartridge are showing. Turn your plastic konb clockwise to loosen the cartridge and then pull out.

1- turn main house water valve off.
2- turn shower on to relieve pressure from the system.
3- remove handle by either popping center plastic cap off to reveal a screw or looking for a set screw on the underside of the handle. Depending on which one you have, then remove the screw.
4- once screw is removed, the handle should pull off.
5- the cartridge will be retained by a cotter pin like piece of metal. Usually takes some needle nose pliers to pull up to remove. Then take pliers and pull cartridge out.

Hope this helps and let me know if you run into any more questions.

A stem is a cartridge in a real old valve. You have pulled retainer clip, you can try to pull it out with pliers, but you might need a moen cartrigde puller.

is it official moen 1225 ? generics can be of poor quality. turn off house water and remove cartridge. Small fingers? Put in valve and feel for debris or turn on whole house again for a few seconds to flush out valve. try another cartridge. Or try this first. take off handle and push in on stem. does drip stop. ? perhaps handle is not on right.

The valve has a faceplate that attaches with two screws and depicts the hot and cold mixing scheme on it. in the center of this is where the valve stem is located. It has a chrome escutcheon that slides into the faceplate and over the stem.There is a small -U- schaped clip that slides into the top of the valve body where the valve stem is seated that retains the valve stem. With all this in place all you have left is the acylic handle that has a unique shape to it on the internal portion that corresponds to the shape and position of the valve stm. Align the handle and stem and push the handle on. A small screw goes into the center of the handle to attach it to the valve stem. LASTLY you should have the acrylic button that covers the screw holding the handle on. All you do is align it appropriately and push the button onto the handle. The chrome handle version is essentially the same but is retained by a small allen screw on the underside of the base of the handle. I hope this assists you and thanks for using Fix Ya. Please let me know if I can be of further assistance.