At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Bought replacement cartridge for Moen posi-temp shower valve and installed as per the directions. Upon testing the unit, there is very little flow with hardly any water pressure.
With cartridge out, water pressure significant to reach the back end of the tub.
Is it possible that I could have put the metal cylinder in 180 degrees backwards? It doesn't look like it but then again.
It is a possible the shower cartridge was put in upside-down or even backwards; do you have a diverter? Have you checked the shower closet for debris? Sometimes excess solder can clog the mixing valve or the water supplies.
It is a possible the shower cartridge was put in upside-down or even backwards; do you have a diverter? Have you checked the shower closet for debris? Sometimes excess solder can clog the mixing valve or the water supplies.
You can't post conmments that contain an email address.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
A bit more information is needed; is this a Moentrol or a Posi-temp valve? You will need to shut water down to the shower. If it is a Moentrol, it could be an issue with either the cartridge or the pressure balancing spool. If you are at least getting water, I am going to assume that it is a Moentrol.
You will need to turn water off to the valve. Pull the cartridge and examine as to whether or not debris is blocking the supply holes of the cartridge. If your valve has built in shut off screws, you can slowly turn water on to clear any debris that may be inside the inlet port. I typically use a piece of PVC to go over the valve body so that water does not leak between the wall and the shower. Again, just turn water on enough to start it flowing.
If you do not notice anything amiss with the cartridge, it could also be the pressure balancing spool. If that is on your valve, it will be a flat head screw about the size of a nickel. Water will need to be off for the removal of the spool as well. Again, you will be looking for debris that is blocking water flow.
If this is an older Moen faucet, you may just want to replace the cartridge while you have it removed. If it is a push/pull, it is a Moentrol. If you have to turn the handle for water to come out, it is a Posi-temp. In my area, the cartridges run from $20-$40. However, Moen does offer lifetime on their cartridges. Lately, I have had a few more hoops to jump through to get the replacement cartridges from Moen, but they are still very pleasant to deal with.
Hi Ken--
Positemp cartdiges should deliver years of maintenance free operation. Usually, clogs develope downstream from the cartridge. If the cartridge still works well, that is, if it still pulls and turns freely, and the rest of the house has decent water pressure, check your shower head. Remove the head and test the water pressure. If the water flows better without it, you may have a clogged shower head. Over time, rust and scale can build up inside the shower head and block what would otherwise be decent water pressure. If a visual inspection does not yield any visible blockage, you can consider cleaning the head by soaking it in a calcium removing solution such as CLR. This often helps, but my preference is to replace the shower head completely.
--Hope this helps.
If your Posi-Temp has no water coming through the valve my first step would to replace the cartridge (Moen pn 1222). The valve as a simple one. Get the part first so you can ues the plastic tool that comes with it if you need to. Beneath the actual lever insert on the handle hub you will notice a small hole. this is to gain access to the allen head screw which holds the handle in place
When it was installed was there any copper sweating done? If so, the valve cartridge can get fried if not removed prior to the immense heat from a torch.
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
It is a possible the shower cartridge was put in upside-down or even backwards; do you have a diverter? Have you checked the shower closet for debris? Sometimes excess solder can clog the mixing valve or the water supplies.
×