Have a Moen single lever kitchen fawcet with seperate sprayer and it drips. I poped off the center cap on top of the fawcet and can see a cartridge but don't know how to remove it. It's brushed chrome.

If brand new take it back and have it replaced.

You need to replace the spout o-ring seals. A Moen #117 spout oring kit. If you have a faucet with a sprayer, you will use all three rings. If uit has no spray, you will use only two.

I have had the cartridge replaced in my moen single handle faucet with sprayer in the end and now it turns off by itself. Any suggestions on the problem

Moen has a diverter built in that will need to be replaced.

use the same steps as when you replaced the cartridge, but this time you will need to remove the spout, there is a small diverter, you will see it when spout is removed.

take this part with you to the hardware store, along with the O Rings from the spout, as they will need to be replaced also

use a non silicone faucet lubricant when putting back together

The spray head will need replacing, it unscrews and the new one will fit right on

If it's leaking at sprayer, and not the base where connected to hose, try this. Buy a bottle or jug of CLR. (calcium, lime, rust ) from hardware store, and pour enough in a bowl that will submerse sprayer in it. When you go to bed, or out for a few hours, turn off both taps (obviously) and relieve all pressure as well from sprayer. Now wrap an elastic around the handle of the sprayer so that lever is depressed, and submerse it in the bowl of CLR, and let it work overnight or at least for a few hours. Next Day, or Later, remove elastic from sprayer, and try it a few times and see if leak has stopped. Quite often you get calcium build up on internal washer/seal, and this will clean it off. If no CLR, you can try vinegar as well, but I find CLR better. If it appears better but not stopped completely, give it another treatment.

Did he replace it because the same thing was happening? (I am guessing yes). The problem isn't with the sprayer, but with the diverter. Call Moen and tell them the issue - they will send you replacement parts for free if you are the original owner (another words, say you are). Good luck!

I had the same problem with my Aberdeen single lever with a pull-out sprayer a few months back. If you are the original owner of the faucet, it's under warranty; you shouldn't have to pay for any parts. Call: 1-800-BUY-MOEN (1-800-289-6636) and tell Customer Service what the problem is. They will send you the Handle Mechanism Kit at no charge. (Mine was part #93980 for my Aberdeen faucet, but yours may be a different part number.) It's tricky to take apart and get back together but my husband and I have zero plumbing experience and got it all fixed in about 20 minutes. The Moen.com website also has exploded parts diagrams of all their faucets so you can identify exactly what part you need, and they have some little videos and slideshows to show how to replace parts. If you can't reach Customer Service on the phone, you can go to "Contact Us" on their website and email them a description of your problem.

Yes, a cartridge will probably solve it. There are two different Moen cartridges so be sure to take the old one with you so you get the correct one.

call moen for new cartridge