How To Fix Leaking Moen Bathroom Faucet

Moen bathroom faucets are known for their durability and reliability, but even the best faucets can develop leaks over time. If you're dealing with a leaking Moen bathroom faucet, don't despair. In most cases, you can fix the leak yourself with a few simple tools and a little know-how.

Before you start, it's important to identify the type of leak you have. There are two main types of leaks: cartridge leaks and body leaks. Cartridge leaks occur when the cartridge inside the faucet becomes worn or damaged. Body leaks occur when the seal between the faucet body and the sink or countertop fails.

Once you've identified the type of leak you have, you can follow the steps below to fix it.

Fixing a Cartridge Leak

Turn off the water supply to the faucet.
Remove the handle by pulling it straight up.
Use a pair of pliers to remove the cartridge nut.
Pull the cartridge straight out of the faucet body.
Inspect the cartridge for any signs of wear or damage. If the cartridge is damaged, you will need to replace it.
If the cartridge is not damaged, you can try cleaning it with a mild detergent and water. Be sure to rinse the cartridge thoroughly before reinstalling it.
Reinstall the cartridge by pushing it straight into the faucet body.
Tighten the cartridge nut using a pair of pliers.
Reinstall the handle.
Turn on the water supply and check for leaks.

Fixing a Body Leak

Turn off the water supply to the faucet.
Remove the handle by pulling it straight up.
Use a pair of pliers to remove the bonnet nut.
Remove the bonnet and the O-rings.
Inspect the O-rings for any signs of wear or damage. If the O-rings are damaged, you will need to replace them.
If the O-rings are not damaged, you can try cleaning them with a mild detergent and water. Be sure to rinse the O-rings thoroughly before reinstalling them.
Reinstall the O-rings and the bonnet.
Tighten the bonnet nut using a pair of pliers.
Reinstall the handle.
Turn on the water supply and check for leaks.

If you are unable to fix the leak yourself, you can call a plumber for assistance. However, in most cases, you can fix a leaking Moen bathroom faucet yourself with a little effort.