Faucet Troubleshooting Guide - Plumbing Repair Guide

Symptom	Check Click on underlined items for further information
Faucet leaks from the handle	Compression style faucet Tighten the packing nut Replace the "O" ring or packing
The faucet drips from the spout	Compression style faucet Replace the seat washer Redress or replace the valve seat All other faucets Replace the cartridge or disk
The water pressure is too low	Make sure the water supply valves under the sink are turned on all the way Clean or replace the aerator Check plumbing system for water pressure problems.
The spout sprays water all over	Clean or replace the aerator Replace the aerator washer
Water is leaking from the faucet under the sink	Check the water supply connections to the faucet Inspect the water supply lines or hoses for leaks
The drain stopper won't open or won't close	Check that the lift rod is connected to the pop-up lever rod. Check that the pop-up lever rod is engaged with the drain pop-up.
Faucet is noisy when I turn it on	The valve may require new washer The water pressure from the supply line may be too high or too low
Faucet is noisy when I turn it off	It may be water hammer, which can be dealt with by installing an air chamber If you have air chambers, then turn off the water supply, drain the system then turn on the water again
Handle is loose	Remove the cap and tighten the screw Locate and tighten the hex set screw Remove the handle and check for stripped teeth on the stem.