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Replaced my tub/shower cartridge with a new RP19804 replacement cartridge. When I turn on the cold water shut off valve the cold water sprays all over the inside of the cartridge housing.

As I turn on the hot water shut off the water flows with no problem. Could the cold water side of the cartridge be blocked?Or, could it be something else?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: Water is either hot or cold - no in between.

I found a way to get warm water in the shower, but I'm not sure it qualifies as a solution. After trying everything else I thought that maybe when I was feathering the faucet in the shower toward the cold side so I would get warm water that at a certain point it blocked the flow on the hot water side enough so that the sensor in the hot water heater sensed there was no demand in the line and it shut the water heater off. To test this, I went to the kitchen and turned the kitchen sink faucet all the way to the hot side and then turned it on so that I got a small flow of water. I waited for the water to get hot to be sure the hot water heater was working. Once it was hot, I left it running to keep demand in the line and then I went to the shower and turned the faucet on. When the water got hot I started feathering the control towards the cold side and soon I had warm water. So I think I'm right in that the sensor in the hot water heater was shutting the water heater off when the demand in the shower was lowered to a certain point when I was trying to adjust the water temp in the shower.

So now I can get warm water, but it means I have to leave the hot water running at another fixture in the house to create a false demand in the system so the hot water heater doesn't shut down. Is there a way to adjust the senor in the hot water heater so that it will stay on when I'm using the shower only, so I don't have to waste water by running another faucet when I want to take a shower?

Posted on Nov 29, 2008

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hessmar
  • 5 Answers

SOURCE: hot water dribbles thru shower head when turned to hot

Replacing the cartridge should solve the problem, the balancing spool is stuck, replacing it will solve the problem. The valve should look like this http://www.moen.ca/shared/pdf/3170pt.pdf . I have unstuck the spools in the past, soaking it in white vinegar will help to remove build up.

Posted on Dec 04, 2008

  • 14 Answers

SOURCE: moen single handle valve tub/shower

The Moen Posi-Temp Valve is a pressure balanced valve and when not used for long periods of time they can stick causing only cold or hot water to pass through the valve.
A New Posi-temp cartridges can be purchased at most plumbing supply houses or big box outlets such as Lowes or Home Depot.
As long as you had cold water before, a new cartridge will solve the problem. In the future it would be wise to occassionally operate the valve at least a couple of times a month in order to keep the pressure assembly from becoming lodged in position. Just follow the instructions included with the new cartridge on the proper removal of the old cartridge and the installation of the new cartridge. a little silicone grease inside of the valve before installing the new cartridge will also help.
Be sure that there is no particles of the old cartridge left in the valve.
sanray

Posted on Dec 27, 2008

dragonsthatk
  • 547 Answers

SOURCE: Not enough hot water, has to do with a shower valve

take off handle (screw under cap) there is a plastic peice behind for ajustment if you move it one way it allows more if you move the other way less contact me if you have problems thank you for useing fixya please rate me

Posted on Feb 21, 2009

jeff_drakesr
  • 155 Answers

SOURCE: no cold water from Moen 2253 tub/shower valve,

Here is a quick check to see if the cartridge may be at fault allowing the cold and hot to mix. Turn off the hot water supply, with hot water supply off turn faucet on. Turn to the hot and cold sides, If you have only cold water then your faucet cartridge is at fault or the cartridge housing is worn. Shut all supply valves and remove cartridge and inspect housing for signs of wear. If wear is visible a new shower valve is needes. If none visible replace cartridge. I have included a link of a PDF file an exploded parts list. I hope this helps in solving your problem. Please rate if the answer helps in any way. Good Luck and have a great week. Jeff

Posted on Apr 05, 2010

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1 Answer

I have been strugling with water flow after replacing a single handle tub and shower cartridge. I have no flo. They have pex plumbing. the shower has not been used for a while and at the time they were...


look inside the valve with a flashlight and make sure a rubber peice of the cartridge did not plug the cold side this cartridge needs hot and cold water to function it has a built in balancer that prevents scalding also make sure its not shut down at a manabloc system in the mechanical room if this helped you please feedback vote thanks

Aug 27, 2011 | Moen & Posi-Temp Single Handle Shower Or...

1 Answer

We have a Moen tub/shower faucet and when turned to the hot water position no water comes out at all. We feel like this is an issue with the valve but aren't sure how to replace it.


the valve has a cartridge that controls hot and cold water mixing. 21-t2opdcnl._sl500_aa300_.jpg the valve at one time had a smaller spindle built into the valve to prevent scolding. this item is located in the right hand side of the valve behind the plate next to the cold shut off valve. there is also a hot shut off valve located on the right hand side of the valve. Most times it is the cartridge itself and this can be found at all hardware stores.
here is a link that shows ALL THE TUB/ SHOWER VALVES PARTS.
http://www.moen.com/shared/pdf/tl3450pt.pdf
Hope this helps.

Dec 29, 2010 | Home

1 Answer

Get hot water only....when rotated to cold get nothing....replaced cartridge but still the same.....shower has been unused since house was built


If you don't have easy access to hot and cold line, where you can disconnect and check for flow to faucet, You can try turning off incoming water supply, remove cartridge, and shut off hot outgoing at water heater, then slowly open incoming (cold) water supply only and see if cold flows from faucet with cartridge removed. At least that will confirm flow faucet, then go from there.

Sep 19, 2010 | Moen & Posi-Temp Single Handle Shower Or...

1 Answer

No cold water from Moen 2253 tub/shower valve, when i turn handle to cold I get hot water, when handle is turn to hot i get hot water


Here is a quick check to see if the cartridge may be at fault allowing the cold and hot to mix. Turn off the hot water supply, with hot water supply off turn faucet on. Turn to the hot and cold sides, If you have only cold water then your faucet cartridge is at fault or the cartridge housing is worn. Shut all supply valves and remove cartridge and inspect housing for signs of wear. If wear is visible a new shower valve is needes. If none visible replace cartridge. I have included a link of a PDF file an exploded parts list. I hope this helps in solving your problem. Please rate if the answer helps in any way. Good Luck and have a great week. Jeff

Apr 05, 2010 | Moen & One Handle Tub & Shower Faucet

1 Answer

Replaced shower valve. still drips from tub spout


The cartridge has 2 or 3 o-ring type seals around it that feed the water through, it picks up both hot and cold and mixes them. Some cartridges are replaced as one, some you have to replace the seals, just take the faucet info to the hardware store and match it up. I think the diverter is for the shower. It sends the water up instead of out.

Feb 28, 2010 | Kohler K-9511-BN MasterShower Shower Arm &...

1 Answer

Not sure if it is a Moen. It is about 30 years old. It has a single handle where you turn on and adjust the temperature, and a shower head and tub spot. Also has a round piece at the bottom of the tub...


Close the stopper at the bottom of the tub - this is so anything you might drop doesn't get into the drain. The drain should not be involved.

You will need to remove the tub/shower valve handle and decorative plate first. Behind the decorative plate there should be a shut off valve on each side of your valve. They will probably be slots to accept a big screwdriver. Turn both the hot and cold water valves off by turning them clockwise until they stop. Do not overtighten them.

Then take a pair of pliers and rotate or pull the tub/shower vale out toward you. You are now testing the shut off valves to make sure they hold before you go any further. If they don't hold and water keeps flowing from either side, you may need to turn off the water to the room or even the house. Hopefully, this won't be necessary.

The shower valve should be a cartridge that can be removed. You must remove a retaining clip that holds the cartridge in place. The clip can be removed with a small flat head screwdriver or needle nose pliers. Do this carefully.

Once the clip is removed, you should be able to remove it by pulling it straight out. This may take a little force. Use the pliers again. If it's stuck, they make a removal tool, but hopefully you won't need it.

Once the cartridge valve is out, take it to a home improvement store and they should be able to match it up. Given its age, the valve may have to be ordered.

When you re-install the cartridge, pay attention to it's orientation. The worst thing that will happen is that the hot and cold could be reversed, but that can be corrected by removing the cartridge, flipping it over and re-installing it. Put a little hand liquid hand soap on the new cartridge when you install it so it slides in more easily. You should have received a new clip with the new cartridge. Open the shut off valves slowly.

Test the valve for hot/cold orientation again and look fo any leaks before you re-install the decorative plate and valve handle.

Jan 14, 2010 | Moen & One Handle Tub & Shower Faucet

3 Answers

My Mo's shower is about 6 years old. I think the


Sure - there is always help at FixYa!

This sounds like a bad cartridge. They can be replaced. To replace the cartridge:

Turn off the water to the tub/shower.
Remove the handle cover (it should pop off)
Remove the center screw (usually phillips head)
Remove the retaining clip holding cartridge in - you can use a pair of long nose piers or a small screwdriver
Grab the cartridge with a pair of pliers and pull straight out. It may require a little force - there are O-rings around the cartridge to keep it from leaking.
Check the cartridge bore (the hole where the cartridge was removed)
Clean any debris or scale - lime away or CLR will work
Apply a little bit of soap around the new cartridge to help it slide in easier. Push it all the way in and make sure it is seated. Re-install the clip (you should have received a new clip with the replacement cartridge)
Turn the water back on a check for leaks
If OK, reinstall the knob screw, and cap.

Let Mom take her warm shower...:)

Dec 13, 2009 | Moen & Posi-Temp Single Handle Shower Or...

1 Answer

Water will not turn off


are the handle extensions on the cartridges all the way. i know sometimes the moens are a pain after you put the trim on to get them on and seated right so it actually spins the cartridge. also check the cartridge alignment the cartridges have little white tabs on the sides that correspond with a slot in the valve body if they aren't aligned it won't shut off either

Jul 31, 2009 | Moen 2919 Chateau Two Handle Tub and...

1 Answer

Replaced a moen cartidge and now the water is not hot in shower


make sure when you turn on the hot and cold shut off valves all the way and turn the moen on after that. Some times I would get that problem if I turned one(either hot or cold) off then tried the shower.

Feb 23, 2009 | Moen & Posi-Temp Single Handle Shower Or...

2 Answers

Moen single handle valve tub/shower


The Moen Posi-Temp Valve is a pressure balanced valve and when not used for long periods of time they can stick causing only cold or hot water to pass through the valve.
A New Posi-temp cartridges can be purchased at most plumbing supply houses or big box outlets such as Lowes or Home Depot.
As long as you had cold water before, a new cartridge will solve the problem. In the future it would be wise to occassionally operate the valve at least a couple of times a month in order to keep the pressure assembly from becoming lodged in position. Just follow the instructions included with the new cartridge on the proper removal of the old cartridge and the installation of the new cartridge. a little silicone grease inside of the valve before installing the new cartridge will also help.
Be sure that there is no particles of the old cartridge left in the valve.
sanray

Dec 27, 2008 | Moen & Posi-Temp Single Handle Shower Or...

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