How To Repair A Moen Single Handle Bathroom Faucet

Why is My Moen Bathroom Sink Faucet Leaking?

It goes without proverb that Moen faucets are probably the all-time faucets in the market and hence their lifetime warranty. That does not withal mean that they will never fail.

Moen faucets volition leak from time to time especially in areas with hard water. So, what causes a Moen faucet to outset leaking/dripping water from the spout/handle?

A dripping/leaking Moen bathroom faucet is caused by a worn out cartridge which fails to create a watertight seal inside the faucet valve. Although repairing the faulty cartridge is possible, replacing information technology with a new one is the best and long-term method to fix the trouble.

A faucet cartridge is a cylindrical role inside the faucet valve that controls the menstruation of water. Modern cartridges will even residual the water temperature flowing out of the faucet to preventing scalding.

Since cartridges are continued to the faucet handle and are ever turning within the valve when you lot turn water on and off, they are bound to clothing out due to friction.

Single-handle Moen bathroom faucets have ane cartridge while double-handle bathroom faucets take 2 cartridges. Moen faucet cartridges are not universal and therefore not interchangeable.

To know which Moen faucet cartridge you need, remove the old i and take it with y'all to a dwelling house comeback store and purchase a similar one. Alternatively, y'all can apply Moen'south Identify my Product guide on their website to know which faucet you have and the replacement parts y'all need.

Equally I mentioned earlier, Moen parts have a lifetime warranty. If your faucet is nether warranty, give Moen a call and they will send y'all a replacement kit free of charge.

Since Moen makes both single-handle and double-handle bath sink faucets, I will first testify y'all how to replace the cartridge in a leaking single-handle faucet. We will then expect at how to replace a cartridge in a leaking double-handle faucet.

Related: How to fix a Moen shower faucet cartridge.

How to Fix a Leaking Single Handle Moen Bath Faucet

Image courtesy: Moen

For this repair you lot will need the post-obit

• Allen wrench
• Philips screwdriver
• Flathead screwdriver
• New cartridge
• Adjustable wrench/pliers
• Cartridge puller
• Towel/rag

One time you have all the materials you demand, these are the steps to follow to supersede the cartridge:

one. Plow off Water to the Faucet

• Duck under the bathroom sink and wait for 2 oval-shaped knobs connected to h2o supply houses. Those are the cold and hot water shut off valves.
• To plough off water to the faucet, turn the ii valves all the clockwise.
• Open the faucet to drain the water already in the hoses.
• Plug off the sink drain opening. This is very important to brand sure that you practise not drib anything downwardly the drain.

2. Remove the Faucet Handle

Based on the type of faucet you take, you may take a lever-type handle or a knob-type. I volition evidence yous how to remove both.

• With a knob-type handle, pry off the minor index comprehend at front of the handle (with the Moen logo) using a flathead screwdriver or knife. At present loosen the screw connecting the handle to the cartridge using a Philips screwdriver and pull out the handle.
• If you have a lever-handle, outset by prying off the small cap underneath the handle. Apply the right size of Allen wrench to remove the screw connecting to the handle and pull it out.

Note: sometimes the handle possibly corroded and will not but slide out. In that example you will need to spray it with a penetrating oil then try after a few minutes.

• Remove the handle adapter. This is the slice continued to the cartridge using a Philips screw. After removing the screw, lift the front side of the adapter then push it back a trivial before lifting it off. It is held in place using a tab on its rear.
• Elevator off the flange. Information technology is decorative piece that yous simply need to lift off.
• Unscrew the plastic ring. It could be paw-tight but sometimes yous may need to use a wrench to loosen it.

Notation: It is important to arrange the parts in order of how you lot removed them so that yous don't forget the order in which to put them back.

• Remove the second decorative piece past just lifting it off. That slice likewise every bit the starting time one is not threaded.

3. Remove the Cartridge

• The cartridge is held in place using a retaining prune to prevent it from shifting due to water pressure. Utilize needle-olfactory organ pliers to pull out the clip. You could also use a small screwdriver.
• Slide out the temperature limit finish. This is the plastic piece at the tip of the cartridge.
• Remove the washer besides.

To successfully remove a Moen cartridge, you will need a cartridge puller. Attempting to pull the cartridge straight without the puller might break it in to 2 parts with 1 left inside the valve.

Luckily for yous, the new Moen cartilage will come with a cartilage puller. This is the modest plastic piece which is usually white in color.

• Push the cartilage puller inside the faucet valve to appoint the cartilage.
• Grab the puller with a wrench or pliers and twist it back and forth until the cartilage starts to rotate freely.
• Remove the puller, grab the cartilage stalk with pliers and pull information technology direct out.
• Use the towel/rag to soak up any water within the valve body.

4. Install the New Cartilage

• First by applying grease all over the cartilage's seals.
• Push the cartilage inside the valve. It is important to brand sure that the 2 tabs on the cartridge are at the superlative and bottom. This is what allows it to exist restrained by the retaining clip.
• Slide in the washer and temperature limit terminate.
• Once the cartilage is in place, insert the retaining clip.
• Push in the metal band and so spiral in the plastic ring. Tighten it gently using the wrench.
• Put the flange back and align it.
• Install the handle adapter, starting by hooking upwardly the tab on its rear then screw it in using the Philips screwdriver.
• Spiral the handle back on.
• Turn on the close off valves. Check if there are whatever leaks with the faucet turned off. Plough on the faucet for about 30 seconds then turn it off. Check for leaks again.

And that is how to repair a leaking single-handle Moen faucet. Here is a helpful video on the same:

How to Fix a Leaking Double-Handle Moen Bathroom Faucet

Image courtesy: Moen

As I mentioned earlier, a double-handle faucet will have two cartridges. Since both cartridges cannot be faulty at the same time, only i cartilage volition be responsible for the leak.

To observe out which cartilage is faulty, first past turn off the cold water shut off valve under the sink. If the leak stops, you will need to supercede the cold water faucet handle cartilage.

On the other hand if the leaking/dripping continues, supervene upon the hot h2o faucet handle cartilage. That existence said, I like to replace both cartilages at the same fourth dimension.

That gives me the peace of listen that I will not demand to replace the other one afterwards but a few months or years.

The post-obit are the steps to follow when replacing a cartilage in a double-handle Moen bathroom faucet.

• Turn off the close off valves and open up the faucet to drain the water.
• Plug off the sink drain opening.
• Remove the handle. Depending on the type of faucet yous have, you volition demand to wait for a hex screw on the side of the handle and remove information technology or if the handle is threaded turn it counterclockwise to loosen information technology.
• Remove the retaining ring. The cartridge is held in identify using a retaining ring. Loosen it with a wrench and put information technology aside.
• Grab the cartilage with a wrench or pliers and pull it straight out. If the cartilage won't come out freely, you may need to use a tool to remove it. Alternatively, insert a small-scale flathead screw driver on the notch on the side of the valve and endeavor to gratis information technology by lifting it upwards and downward.
• Soak up the water within the valve using a textile.
• Apply some grease on the new cartilage's O-rings
• Install the new cartilage. It is important to make certain that that the tab on the cartridge coincides with the notch on the side of the valve body.
• Screw in the retaining clip and tighten it gently using the wrench.
• Install the handle.
• Plow on the h2o and check if the leaking has stopped.

And that is how to replace the cartilage to fix a leaking double-handle Moen bathroom faucet. This video from Moen illustrates all the steps fifty-fifty better.

I similar to besides take the time to clean or replace the faucet aerator besides. For more information on faucet aerators as well as how to clean and replace them check out this post.

Source: https://plumbingsniper.com/how-to-fix-a-leaking-moen-bathroom-faucet/

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