Shut off the water supply to the faucet. Remove the decorative Moen emblem. Use a hex wrench (7/64") to remove the screw in the front of the handle. Pull the handle off the faucet. Remove the handle adapter. Remove the upper decorative ring. Unscrew the threaded plastic ring. Use channel lock pliers if required. Remove the lower decorative ring. Remove the cartridge retaining clip. Remove the limit stop. Loosen the cartridge by twisting it back and forth using pliers or the white plastic tool included with the replacement cartridge. Remove washer. Remove the old cartridge. Pull it straight out. Clean the area to remove debris. Install the new cartridge, lining it up with the retaining clip notch. Reinstall the limit stop, retaining clip, lower decorative ring, and washer. Screw on the threaded plastic ring. Reinstall the upper decorative ring. Reinstall the handle adapter. Reinstall the handle and screw it in place. Reinstall the Moen emblem. Turn the water supply back on.
Note: If hot and cold are reversed, remove the handle and handle adapter, then turn the cartridge stem (where the handle adapter threads in) 180 degrees. Then reassemble.
