Moen shower repair

Moen shower repair DEFAULT

Moen HandleHow to Repair a Moen Posi-temp Shower/tub Valve

The Moen Posi-temp shower valve is a vey popular valve for home installations. It is one of the most common valves installed in homes in recent years. The Posi-temp is a pressure-balanced valve. This means that the valve maintains the selected flow of hot and cold water even with fluctuations in the pressure of either temperature water supply. So, if someone flushes the toilet while your in the shower - the shower temperature is unaffected.

1222B cartridgeThe inner workings of the posi-temp valve are all in a replaceable cartridge. Replacing the cartridge can fix a variety of probelms that can occur (leaking, loss or reduction of hot or cold water, etc.)

logo1) Identifying the Moen Posi-temp shower valve: Look for a Moen logo. (if yours is a Delta, or Price Pfister, then it is not a Moen) The Moen posi-temp valve comes in a variety of finishes, but all turn on with counter-clockwise action and with the temperature increaseing as the handle is moved further. Full hot is about 270° of rotation from off. Once on, flow remains constant throughout the temperature range selection. If your shower on/off is separate from the temperature control, then it is NOT a posi-temp valve.

1222B2) Purchase a replacement cartridge. Don't go for the cheap import. The internal workings of the valve are precision stainless steel and high quality brass. Non-original manufacturer parts are usually of lower quality and will not last! The correct part number for a Moen Posi-temp is the 1222B. The replacement part does come with instructions.

Moen Puller3) Have a Moen cartridge puller ready. This is not a cheap tool, but if you have several of these valves in your house (it's not likely you only have one), and you're a DIY kind-a person you might need this tool to complete the repair (I did in the video). The puller is used to extract the cartridge if it doesn't come out easliy with pliers and the small plastic piece included in the kit for loosening the cartridge (you might need it, you might not).

Other pullers are available than the one pictured here and used in the video. See my Plumbing Tools page under Valve Tools for some other examples.

Since most showers don't have a separate shut off (like a sink or toilet) you usually have to shut the water off to the entire house until the repair is complete. So, have everything you need or might need ready, just in case, including the puller.

Now you're ready to continue with the actual repair, which are shown in the video in the following steps:steps

  • Shut off the water to the house & open a faucet to relieve pressure
  • Remove the faucet handle
  • Remove the handle adapter and collar
  • Remove the retetion clip
  • Loosen the cartridge with the included plastic part and pliers
  • If the plastic tool does not loosen the cartridge, use a puller
  • Remove the cartridge
  • Check for debris in the valve body and clean as required
  • Insert new cartridge
  • Re-assemble in reverse order
  • See the video for details on revsersing hot and cold sides (cold should come on first)

Moen provides a customer support line for parts and installation assistance.
(USA: 800-289-6636, Canada 800-465-613, Mexico 800-718-4345)

Time to complete20 min
Toolspliers or channel locks, allen wrenches, Moen cartrdige tool, phillips screwdriver, very fine steel wool or 3M scrubby pad, flashlight
Skill levelmedium

How to Fix a Leaky Moen Shower Faucet

Leaky faucets are among the most stressful conditions that can happen inside the house. If this is left unattended, it could sum up to a very costly result. If you own a house having this type of dilemma, it is best to look into the situation as soon as possible. Accordingly, faucets left dripping all day and night for the whole month will waste hundreds of gallons of water. You can avoid this from happening if you only know how to deal with leaky shower faucets properly.

Hiring a plumber can easily fix this issue in no time. However, if you want to save a few bucks for repairs, you can heed some tips that you can follow easily. Here are a few thoughts that you can ponder when faced with this type of problem.

The leaks can often be seen on the stem. This is the part that selects the temperature of water or controls the volume. However, the wear and tear happens inside the cartridge, so it is important to determine if it should be replaced or not.

Faucet cartridges are the most common culprits behind this stressful condition. Basically, the moving parts that compose these cartridge faucets such as the single-handle Moen are inside the slim cylindrical case. These parts can be replaced accordingly. Here are the steps that you can follow.

1. Retainer Clips

Try to pry out the retainer clip in order to remove the faucet cartridge. It is hidden behind or under the handle that you can remove using a screwdriver. When leaks occur to the unit, it is ideal to replace the cartridge right away.

2. The Handle

The handle can be used to remove and replace the cartridges that can be found on two-handle faucets. You can use a quarter to turn its slotted cartridge retainer.

3. Remove the O-Ring

Take note that an O-ring tension should be removed as it is connected to the cartridge. So you need a pair of pliers to lift the cartridge accordingly. It will be lifted out after taking apart the single-handle faucet.

4. Retainer Clips

Retainer clips are found in Moen products that hold the cartridges. Some of the faucets have designs that show the clip at the rear faucet just under the handle. So for these units, the handle needs to be removed first.

5. Check for the Tube

Try to lift the tube under the handle that might be hiding the retainer clip. Other models have a couple of retainer clips in which the second can be found at the handle. A long-nose pliers or small screwdriver can be used to pry out the retainer clip. Thus, you can now pull the cartridge out with pliers.

6. Installing the New Cartridge

Installing a new cartridge can be easy. Just try to look for the arrow or spot that is aimed up. Afterwards, you can reinstall the parts such as the clip, O-ring, and handle back to where you have removed them from.

Parts can vary depending on the model and brand. For a Moen shower faucet, you can order through licensed manufacturers. Instructions may come with the package, so fixing your leaky Moen shower faucet can be done in a breeze.

  1. Van dyke restorers
  2. Acura dealership minnesota
  3. Product name ideas free

Single Handle Shower: Standard Valve

Standard Valve

Escutcheon Screws


Handle Operation:

Push/Pull and Rotate 

If this is your valve see the articles below for technical information.

Moentrol Valve

Escutcheon Screws


Handle Operation:

Push/Pull and Rotate 

If this is your valve, see  Single Handle Shower: Moentrol Valve.

PosiTemp Valve

Escutcheon Screws


Handle Operation

Rotate Only

If this is your valve, see Single Handle Shower: PosiTemp Valve.

M-Core 2 Series

Temperature Indicators


Handle Operation:

Rotate Only

If this is your valve see  Single Handle Shower: M-Core Valve.

M-Core 3 Series

Temperature Indicators


Handle Operation:

Push/Pull and Rotate

If this is your valve see Single Handle Shower: M-Core Valve.

Moen Bathtub DrippingFaucet Repair


Repair moen shower


How to fix Moen Single-handle faucets


Now discussing:


476 477 478 479 480