Why Is My Moen Motionsense Touchless Faucet Dripping?

Are you frustrated with a dripping Moen Motionsense faucet? You’re not alone. This type of faucet often has problems with dripping, but it’s usually something that can be easily fixed.

In this article, you’ll learn the steps to take to troubleshoot a Moen Motionsense faucet. These steps involve:

  • checking the solenoid
  • replacing the batteries
  • cleaning the sensors
  • inspecting the diaphragm
  • replacing the O-rings
  • adjusting the temperature limit stop.

So don’t despair, you can get your faucet back in working order in no time.

Troubleshooting a Dripping Moen Motionsense Faucet

Let’s take a look at how to troubleshoot a dripping Moen Motionsense faucet!

First, check the seals of the water supply line and the faucet itself. Tighten the nut if necessary, or replace the seal if it looks worn or damaged.

Then, check the settings on the faucet. Make sure the handle is in the off position and the motion sensor is set to the desired sensitivity.

If the water continues to drip, the problem may be with the internal valve or the faucet itself. Try to reset the valve or consider replacing the faucet.

Checking the Solenoid

Check the solenoid like you’re searching for a needle in a haystack; it could be the cause of the leak.

Test the seals around the solenoid and inspect the valves to make sure they’re seated correctly and not leaking.

If the seals appear to be in good condition, then you’ll need to remove the solenoid and inspect it for any damage.

If the solenoid is damaged, it should be replaced with a new one.

If the solenoid is in good condition, then the leak is likely coming from another part of the faucet.

Check the other components of the faucet, such as the seals around the handle, the O-ring, and the rubber gasket, to make sure they’re in good condition and not leaking.

If any of these parts are worn, dry, or cracked, replace them with new parts.

If all of the seals and gaskets appear to be in good condition, then check the internal components of the faucet, such as the valves and the spout, to see if they’re loose or leaking.

If any of these parts are loose or leaking, they should be tightened or replaced.

Replacing the Batteries

It’s time to replace the batteries in your Moen Motionsense Touchless Faucet — let’s get to it! Here’s what you need:


  • Flathead screwdriver
  • Needle-nose pliers
  • Phillips screwdriver


  • Replacement batteries

First, turn off the water pressure to the faucet. Place a towel underneath the faucet to catch any water that may leak out during the process.

With a flathead screwdriver, remove the cover plate on the faucet’s handle. Using a Philips screwdriver, remove the solenoid. The solenoid is what powers the faucet’s motion-sensing capabilities, and the batteries are located inside of it.

With needle-nose pliers, carefully remove the old batteries and replace them with the new ones.

Once you’ve done that, re-install the solenoid and cover plate.

Turn the water pressure back on and test the faucet to make sure everything is working properly.

Cleaning the Sensors

The sensors of the faucet need a good clean to keep it running smoothly, so we’d better get to it! To begin, you should start by examining the valves, as a build-up of debris can cause the faucet to drip. Start by turning the water off, then dismantle the valves and inspect them. If the valves are dirty, you can clean them using a soft cloth and the manufacturer’s recommended cleaning solution. Once the valves are fully cleaned, be sure to test the seals to ensure they are in proper working order.

Once the valves have been inspected and cleaned, it’s time to move onto the sensors. You may need to remove the sensors from the faucet in order to clean them effectively. A soft cloth and the manufacturer’s recommended cleaning solution should be used again for proper cleaning. When you have finished cleaning the sensors, be sure to reattach them securely to the faucet and then test the operation of the faucet.

Task Methods Materials
Examine Valves Dismantle valves and inspect them Soft cloth and cleaning solution
Clean Valves Use soft cloth and manufacturer’s recommended cleaning solution Soft cloth and cleaning solution
Test Seals Ensure they are in proper working order N/A
Clean Sensors Remove sensors from faucet and use soft cloth and cleaning solution Soft cloth and cleaning solution
Reattach Sensors and Test Faucet Operation N/A N/A Test faucet operation and check for leaks Inspect faucet for any leaks and ensure that it functions properly None

Inspecting the Diaphragm

Carefully inspect the diaphragm to ensure it isn’t cracked or worn, as any damage can cause it to malfunction.

The diaphragm is the part of the faucet that controls the flow of water, so if it is damaged, it can lead to a slow drip or a full-on leak.

If the diaphragm is cracked or worn, you may need to replace it entirely. Take a close look at the diaphragm and its surrounding parts to ensure that it is connected correctly and that there are no signs of damage.

If it looks like it can’t be repaired, contact a professional to replace the part. When repairing leaks or replacing parts, make sure to use quality parts that are designed for your particular Moen faucet.

Replacing the O-rings

Now that you’ve checked the seals on the diaphragm, it’s time to move on to replacing the O-rings.

Replacing the O-rings is a simple process that will help prevent future dripping from your Moen MotionSense touchless faucet. To begin, you’ll need to have a few tools on hand, such as a flathead screwdriver, needle-nose pliers, and a wrench. You’ll also need to purchase the correct size O-rings from your local hardware store.

Once you have all the necessary tools and supplies, you can begin the process of replacing the O-rings. First, use your wrench to loosen the screws and remove the handle. Then, use your flathead screwdriver to remove the cartridge from the faucet body.

You’ll then need to use your needle-nose pliers to remove the old O-rings and install the new ones. Make sure the new O-rings are properly secured and aligned before installing the cartridge back onto the faucet body.

Finally, use your wrench to tighten the screws and replace the handle. With the O-rings replaced, your Moen MotionSense touchless faucet should no longer be dripping.

Adjusting the Temperature Limit Stop

Adjust the temperature limit stop on your faucet and make sure it’s set to your desired level – no more hot water surprises!

The temperature limit stop is typically located near the base of the faucet and can easily be adjusted with a flathead screwdriver.

It is important to note that the limit stop should not be adjusted too much in order to reduce the flow of water.

To confirm that the limit stop has been set correctly, test the seals for a proper fit.

When you turn on the water, it shouldn’t flow out of the faucet too quickly.

If it does, the limit stop may need to be adjusted further.

Additionally, make sure that the temperature limit stop is set within the recommended range by Moen.

Any setting outside of this range may cause the faucet to leak.

Frequently Asked Questions

How much will it cost to repair my Moen Motionsense faucet?

The cost of repairing your Moen Motionsense faucet will depend on the type of repair you’re doing. If you’re doing a DIY repair, it’ll cost less than if you hire a professional.

If you decide to do the repair yourself, you’ll need to purchase the necessary parts, such as a new faucet handle or valve, which could cost anywhere from $30 to $100.

If you choose to hire a professional, you can expect to pay between $100 and $300, depending on the complexity of the job.

Is the Moen Motionsense faucet compatible with my sink?

Moen Motionsense faucets are designed for easy installation, so they should be compatible with your sink. All you need is the right water pressure and the right tools.

It uses a high arc spout that delivers the right amount of water pressure and is designed to fit any sink. It also has a flexible hose and adjustable mounting bracket, so you can find the best installation fit.

With its easy installation, you can have a touchless faucet in no time.

How can I extend the battery life of my Moen Motionsense faucet?

Are you looking for ways to extend the battery life of your Moen Motionsense faucet? Well, you’re in luck!

With the right combination of battery maintenance and sensor calibration, you can keep your Moen Motionsense faucet running longer than ever before.

First, make sure to check the battery regularly and replace it when it starts to get low.

Additionally, calibrate the sensors to ensure they are functioning correctly and detect even the slightest movements.

With these simple steps, you can be sure to keep your Moen Motionsense faucet running in top condition for a long time to come.

How do I know when to replace the O-rings?

To determine when to replace the O-rings in your Moen Motionsense faucet, you’ll need to first identify the cause of the leaking.

Oftentimes, this can be done by doing a DIY repair. During the repair, you’ll be able to see if the O-rings are worn out or damaged. If they appear to be, then it’s time to replace them.

Otherwise, if the O-rings are in good condition, the leaking could be due to a different issue.

Is there a way to troubleshoot my Moen Motionsense faucet without taking it apart?

If your Moen Motionsense touchless faucet is leaking, there are various troubleshooting steps you can take without taking it apart.

One way is to check the calibration issues by performing a leak detection, which you can do by resetting the faucet and seeing if the dripping stops.

If the dripping does not stop, you may need to adjust the calibration settings. If the calibration is correct and the dripping persists, you may need to replace the O-rings or other parts.


You’ve tried all the common fixes for your Moen Motionsense Faucet, but unfortunately, it’s still dripping. Don’t worry, it’s not a lost cause.

You can still get your faucet back in working order. To do this, you’ll need to take the faucet apart and inspect the diaphragm, O-rings, and other components. Take your time to make sure everything is in good condition.

If not, you can replace the parts and get your faucet back to normal. With a little bit of effort and patience, you can bring your Moen Motionsense Faucet back to life, like a phoenix rising from the ashes.

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