How To Fix Leaky Bathtub Faucet Single Handle Moen

How to Fix a Leaky Single-Handle Moen Bathtub Faucet

A leaky bathtub faucet is a common plumbing issue that can waste water and increase your utility bills. If you have a Moen single-handle bathtub faucet that is leaking, there are a few simple steps you can take to fix the problem yourself.

Tools and Materials You'll Need

Adjustable wrench
Phillips head screwdriver
Flat head screwdriver
Hex key (optional)
Replacement cartridge (if necessary)
Plumber's putty

Step-by-Step Instructions

1. Turn off the water supply: Locate the shut-off valves under the sink or behind the bathtub and turn them clockwise to shut off the water supply.

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 a hex key or flat head screwdriver to remove the screw that holds the cartridge in place. Pull the cartridge straight out.

4. Inspect the cartridge: Examine the cartridge for any signs of damage or wear. If the cartridge is damaged, you will need to replace it with a new one.

5. Clean the faucet body: Use a damp cloth to clean the inside of the faucet body where the cartridge sits. Remove any old plumber's putty or debris.

6. Install the new cartridge: If you are replacing the cartridge, apply a thin layer of plumber's putty to the base of the new cartridge. Insert the cartridge into the faucet body and tighten the screw.

7. Reinstall the handle: Place the handle over the cartridge and tighten the screw.

8. Turn on the water supply: Slowly turn on the shut-off valves under the sink or behind the bathtub. Check for any leaks around the handle or base of the faucet.

Troubleshooting Tips

If the leak persists after replacing the cartridge, there may be a problem with the o-rings in the handle or faucet body. Replace the o-rings as needed.
If the leak is coming from the base of the faucet, tighten the packing nut around the base of the handle.
If you are unable to fix the leak yourself, call a qualified plumber for assistance.

Conclusion

Fixing a leaky bathtub faucet is a relatively simple task that can save you money and water. By following these steps, you can quickly and easily repair your Moen single-handle faucet and get your bathroom back in working order.