
- Begin Moen Kitchen Faucet Repair by Disassembling the Faucet. If your Moen kitchen faucet is leaking from the spout, the cartridge isn't sealing water. ...
- Servicing the Cartridge, O-Rings and Gaskets. Once you have the cartridge in hand, examine it for cracks or nicks and replace it with a genuine Moen cartridge if you find ...
- You May Have to Replace the Valve Seats. If the faucet still leaks after you've serviced the cartridge, the valve seats are probably worn or nicked.
- Moen Kitchen Faucet Leaking at Base. If a Moen single-handle kitchen faucet is leaking from the handle, or you see water dripping onto the sink deck, the O-rings around the ...
How to fix a Moen single handle kitchen faucet?
Tightening Moen Kitchen Faucet Handle
- Turn off the water and cover the drain. Working on the faucet handle requires the same prep work as working on its base. ...
- Locate the set screw. All Moen faucet handles are held in place by a set screw located under a decorative plate. ...
- Tighten the screw. ...
- Replace the decorative cap. ...
- Turn on the water and check for leaks. ...
How do you fix a leaking faucet?
- The first step is to remove the faucet spout. ...
- Use a utility knife to score the sealant where the spout and bathtub wall meet for easier removal.
- Remove the length of pipe, called a pipe nipple, with a wrench.
- Wrap the threads of both ends of the nipple with plumber’s tape or Teflon tape.
- Install the nipple into the 90-degree elbow pipe within the wall. ...
How to fix a dripping Moen faucet for free?
Start with the retaining nut, then look for other problems
- Tighten retaining nut. If you're lucky, you can fix your leaking faucet by simply tightening the nut under the handle. ...
- Remove the stem. Next, remove the faucet stem. ...
- Replace washer assembly. Keep track of the parts as you disassemble the faucet so you can install the new ones in the same order.
- Remove the vacuum breaker cap. ...
- Vacuum breaker parts. ...
How do I troubleshoot the MotionSense faucet?
Easy To Install
- All connections are clearly labeled. No complicated subassembly is required.
- No electrician is needed. ...
- Under-cabinet controls allow you to easily adjust the desired preset water temperature of the hands-free mode.
- If service is ever required, a diagnostic light will flash in different sequences to pinpoint the problem.
See more

How to Repair a Leaking Moen Kitchen Faucet that is Leaking at Base or Under Sink?
Repairing a faucet by yourself at home is not a big task. You have to follow some little instructions which come with a faucet box. All modern kitchen faucet like moen faucet has almost similar procedures to repair a faucet.
Why is my Moen Kitchen Faucet Leaking?
If you have a moen kitchen faucet and it is leaking then there may be two reasons for the moen kitchen faucet leaking problem. Either the O-ring of the faucet is worn or water is leaking due to a faulty cartridge.
Why is my faucet leaking?
It saves lots of time because after opening the faucet you have to only change the faulty part of the faucet instead of finding a leaking point.
What is the problem with a Moen kitchen sink faucet?
A most common problem of a moen kitchen sink faucet leak is a worn O-ring. The O-ring of the faucet worn out over time and it starts leaking problems for the faucet. This O-ring problem comes in moen pull-out single handle spray faucet. The solution to this problem changes or replaces the O-ring of a leaking faucet.
Why does my Moen faucet leak?
Over time cartridges inside the moen faucet wear out and become the reason for the leakage and dripping.
What to do if water is still coming from faucet?
If the valve doesn’t work properly and water is still coming from the faucet then you have to close the main supply of clean water from your house. Some people forget this step and open the faucet without turning off the water supply result all over water in the kitchen.
Do you need silicone grease for a Moen kitchen faucet?
For moen faucet, you have to use silicone grease. If you are fitting a moen kitchen faucet by yourself then read the full instruction guide that comes with the faucet box. Sometimes handle not moves properly because of the irregular fitting of the faucet.
Why is my Moen faucet leaking?
If your Moen kitchen faucet is leaking from the spout, the cartridge isn't sealing water. The problem could be a damaged cartridge or worn seals. To access the cartridge, some disassembly is required. Turn off the water valves under the sink and open the faucet to relieve water pressure.
What does it mean when a Moen faucet leaks?
If a Moen single-handle kitchen faucet is leaking from the handle, or you see water dripping onto the sink deck, the O-rings around the base of the spout are worn. To service these, remove the handle and shimmy the spout up and off the top of the valve.
What to do if your faucet still leaks?
If the faucet still leaks after you've serviced the cartridge, the valve seats are probably worn or nicked. Disassemble the faucet again and remove the valve seats with a seat wrench, which is available at any hardware store. You could have these reground, but it's easier and less expensive to simply replace them.
What to do if your faucet leaks after service?
You May Have to Replace the Valve Seats. If the faucet still leaks after you've serviced the cartridge, the valve seats are probably worn or nicked. Disassemble the faucet again and remove the valve seats with a seat wrench, which is available at any hardware store.
How to relieve water pressure under sink?
Turn off the water valves under the sink and open the faucet to relieve water pressure.
How to unscrew a cartridge?
Unscrew the retaining nut holding the cartridge using tongue and groove pliers. The cartridge may also be secured by a retaining pin. Work this out with a flat-head screwdriver, being careful not to lose it down the drain.
Who invented the cartridge faucet?
Image Credit: Caiaimage/Charlie Dean/Caiaimage/GettyImages. Moen is the king of cartridge faucets, owing to the fact that Al Moen, the company's founder, invented it. That simplifies Moen kitchen faucet repair because you don't have to spend a lot of time researching different faucet styles. If it's a Moen, it's a cartridge faucet.
What to do if Moen faucet is leaking?
If your Moen kitchen faucet is leaking (usually at the base but sometimes from the spout), the cartridge and/or O-rings are worn out and will need to be replaced. If you have a pullout kitchen faucet you might need to replace the hose as well.
What happens if a Moen kitchen faucet leaks?
If your double-handle Moen kitchen faucet is leaking from the spout (the bottom of the spout to be specific) then the O-rings are worn out and will need to be replaced. This is how to replace Moen kitchen faucet O-rings:
How to check if a water cartridge is leaking?
To be sure which cartridge is leaking, turn off the cold water to the faucet and check if the leak has stopped. Now shut off the cold water and turn on the cold water and check the difference. Replace the leaking cartridge.
How to tighten a cartridge retaining nut?
Push in the cartridge retaining nut and tighten it . Since this piece is made of plastic be very gentle as you tighten it not to strip the threads or even break it.
How to fix a leaky faucet?
If this nut is loose, the faucet will start to leak. Use an adjustable wrench to gently tighten the nut if it’s loose. Once that is done, turn on the water to the faucet and check if it is leaking around the cartridge. If there are no leaks then your problem is fixed.
What happens if a faucet leaks under the sink?
On the other hand, if the leak is from the base of the faucet or under the kitchen sink, there is a hole on the faucet hose and you will need to replace it. Again, this part can be delivered to you for free by Moen if you contact them.
What type of faucets does Moen make?
Moen makes 4 main types of kitchen faucets. There is the single-handle kitchen faucet, double-handle kitchen faucet, pullout kitchen faucet and the single-handle kitchen faucet with a side spray.
How to test for a leak in a kitchen faucet?
You can test for a handle leak by wrapping a paper towel around the handle and turning on the faucet. If the faucet is leaking from the handle, See article Kitchen Faucet: Leaking Around The Handle.
What does it mean when a faucet handle puddles?
When the handle is turned on the water puddles around the faucet base. Recommended Solution -Water can leak from various areas. A handle leak can puddle onto the base plate (escutcheon) making it appear to be a leak at the base of the faucet.
Do I need to replace the O rings on a kitchen faucet?
If you have a single handle faucets without a side spray, you will need to replace the faucets O-rings. I f you have a two handle kitchen faucet , you will need to replace the faucets O-rings. If you have a faucet with a pullout wand, confirm that the spray wand and pullout hose connection is tight. If it is still leaking, contact us at Moen.com ...
