How To Replace A Moen Shower Cartridge

How to Replace a Moen Shower Cartridge

If you’re experiencing leaks or low water pressure in your shower, it may be time to replace your Moen shower cartridge. The cartridge is the part of the shower valve that controls water flow and temperature. In this article, we’ll walk you through the steps of how to replace a Moen shower cartridge.

Identify Your Moen Shower Cartridge

Before you begin, you’ll need to identify the type of Moen shower cartridge you have. Moen shower cartridges come in various sizes and shapes, and the disassembly process may differ depending on the model.

Look for the model number on the cartridge itself or on the valve body. You can also contact Moen customer service for assistance in identifying your cartridge.

Gather Your Tools and Supplies

Once you have identified your Moen shower cartridge, you’ll need to gather the necessary tools and supplies. These may include:

  • Adjustable wrench
  • Flathead screwdriver
  • Phillips head screwdriver
  • Allen wrench
  • Needle nose pliers
  • New Moen shower cartridge
  • Plumber’s grease

Turn Off Water Supply

Before you begin disassembling your shower valve, you’ll need to turn off the water supply to your shower. Locate the valve that controls the water supply to your shower and turn it off.

Remove Shower Handle

Using a flathead screwdriver, gently pry off the decorative cap on the shower handle to reveal the screw underneath. Use a Phillips head screwdriver to remove the screw, then pull off the handle to expose the valve.

Remove Trim Plate

Use an Allen wrench to remove the screw that secures the trim plate to the valve body. Gently pull the trim plate away from the wall to expose the cartridge.

Remove Moen Shower Cartridge

Use an adjustable wrench to loosen and remove the nut that secures the cartridge to the valve body. Use needle nose pliers to pull out the cartridge. If the cartridge is stuck, you may need to use a Moen cartridge puller tool.

Clean Valve Body

Inspect the valve body for any debris or mineral buildup. Use a soft-bristled brush or cloth to clean the valve body. Apply plumber’s grease to the inside of the valve body to lubricate the new cartridge.

Install New Moen Shower Cartridge

Insert the new Moen shower cartridge into the valve body, making sure it is properly aligned. Use an adjustable wrench to tighten the nut that secures the cartridge to the valve body.

Reassemble Shower Valve

Replace the trim plate and screw it into place using an Allen wrench. Replace the shower handle and screw it into place using a Phillips head screwdriver. Finally, replace the decorative cap on the shower handle.

Turn On Water Supply

Turn on the water supply to your shower and test the new Moen shower cartridge for leaks or proper water flow and temperature control.

FAQs

How often should I replace my Moen shower cartridge?

You should replace your Moen shower cartridge every 5-7 years or as needed if you experience leaks or low water pressure.

Can I replace my Moen shower cartridge myself?

Yes, you can replace your Moen shower cartridge yourself if you have the necessary tools and confidence in your DIY skills. However, if you’re not comfortable with plumbing work, it’s best to hire a professional plumber.

What can I do if my Moen shower cartridge is stuck?

If your Moen shower cartridge is stuck, you may need to use a Moen cartridge puller tool to remove it. These tools can be purchased at most home improvement stores.

Conclusion

Learning how to replace a Moen shower cartridge can save you time and money on plumbing repairs. By following these simple steps, you can easily replace your shower cartridge and restore proper water flow and temperature control to your shower.