Moen Bathroom Tub Faucet Repair

Moen bathroom tub faucets are known for their durability and stylish designs. However, even the most well-made faucets can develop problems over time. If your Moen bathroom tub faucet is leaking, dripping, or not working properly, you may be able to repair it yourself with a few simple tools and parts.

Tools and Parts You'll Need

Adjustable wrench
Phillips head screwdriver
Flat head screwdriver
Replacement cartridge (if needed)
O-rings (if needed)
Plumber's tape

Step-by-Step Repair Instructions

1. Turn off the water supply to the faucet. There should be two shut-off valves under the sink. Turn both valves clockwise to shut off the water.

2. Remove the handle. Use a Phillips head screwdriver to remove the screw that holds the handle in place. Pull the handle straight up to remove it.

3. Remove the cartridge. Use an adjustable wrench to loosen the cartridge retaining nut. Pull the cartridge straight out of the faucet body.

4. Inspect the cartridge. Look for any signs of damage or wear. If the cartridge is damaged, it will need to be replaced.

5. Replace the cartridge (if needed). If the cartridge is damaged, insert the new cartridge into the faucet body. Tighten the cartridge retaining nut by hand, then use an adjustable wrench to tighten it further.

6. Inspect the O-rings. The O-rings are located on the cartridge and the faucet body. Inspect them for any signs of damage or wear. If the O-rings are damaged, they will need to be replaced.

7. Replace the O-rings (if needed). If the O-rings are damaged, remove them from the cartridge and the faucet body. Apply a small amount of plumber's tape to the threads of the new O-rings, then install them on the cartridge and the faucet body.

8. Reassemble the faucet. Insert the cartridge into the faucet body. Tighten the cartridge retaining nut by hand, then use an adjustable wrench to tighten it further. Replace the handle and tighten the screw.

9. Turn on the water supply and check for leaks. Open the shut-off valves under the sink to turn on the water supply. Check for any leaks around the faucet.

If you have followed these instructions carefully, you should have successfully repaired your Moen bathroom tub faucet. If you are still having problems, you may need to call a professional plumber for assistance.