Why is My Keurig Coffee Maker Leaking?

Having a Keurig coffee maker in your home is like having your barista at your fingertips! It can make your mornings run smoother, help you entertain friends more comfortably, and save you time and money. With a wide variety of coffee, tea, and other beverages to choose from, you can customize your perfect cup of coffee every single time. Keurig is easy to use and takes the hassle out of making coffee, you can get a complete guide on how to use Keurig too. With its sleek design and convenient features, it’s no wonder why so many people are choosing Keurig for their at-home coffee experience.

Keurig is overdue for a descaleDescaling is mandatory in 3 months
The water tank’s seal has rupturedReplace the broken seal
Cracked water tankRepair the crack
OverfillingDon’t overfill
Clogged Exit NeedleClean the exit needles
The upper gasket is damaged or LooseCheck the seal
Defective capsulesTry the original capsule
Broken interior heating component or pipeRepair or replace damaged part
Tube connection failure, and worn-out filtersGet new tube and filter

Find the leaking part

If your Keurig is leaking when brewing, the reason can be resolved quickly by identifying the cause of the leak, as Keurig is repairable. For this purpose, first of all, you need to identify the damaged part resulting from the leak from the Keurig coffee maker. A simple way of finding leaks is by running the coffee machine while it’s disassembled to see if you can detect any water loss. Attempting this procedure offers clear insight into possible breakages that may be causing leakages, whether it is leaking from the base or top.

Problematic parts

A broken cold water tank, defective O-rings, and worn-out valve seals are the most typical sources of leaks in Keurig coffee makers.

Water reservoir 

The water tank probably has a hairline fracture or pinhole if the leak comes from the side where the tank is placed. It can happen if the device is mishandled, and the water reservoir might crack.

Bottom silicon valve

A valve leading to the pump is located at the bottom of the water storage tank. Due to the constant pressure of the water, the seal on this valve might eventually wear out.

The part of the Silicon seal that connects to the water storage tank usually wears out first. The broken seal allows Keurig leaks.


If the O-ring at the bottom of the cold water tank is worn out or misaligned, water will leak out through it. It can be because of damage too. Keurig o-ring replacement can stop the leak.

9 reasons your Keurig machine may be leaking 

The most common issues with leaks in Keurig coffee makers have been compiled here, along with solutions that have been tried and proven for using Keurig.

1. Keurig is overdue for a descale

We have observed that neglecting to descale your Keurig machine is the most prevalent source of leakage.

Solution – Descaling is mandatory in 3 months

At least once every three months, or after every 300 cups of coffee, whichever comes first, you should descale your coffee maker. Running vinegar through the Keurig is one of the efficient ways of descaling. Delayed descaling can also be the cause when Keurig won’t pump water.

2. The water storage tank’s seal has ruptured

The problem of a ruptured water storage tank seal requires immediate attention. The seal rupture can cause the water to leak out around the cup, leading to a decrease in water pressure and, ultimately, lower water supply.

Solution – Replace the broken seal

The answer to this problem is to have the tank inspected and repaired as soon as possible. The sealing material may need to be replaced, or the entire tank may need to be replaced if the damage is too extensive. Once the repairs have been made, the tank should be checked regularly to ensure that it remains sealed and any future problems can be avoided. Silicone valves often aren’t damaged unless they’re used excessively. However, it loses its effectiveness when the water tank is attached. To keep the silicone seal functioning properly, it must be greased often. Danco silicone grease is recommended.

3. Cracked water tank

Having a cracked water tank in your Keurig can be a big problem. Not only does it mean that your Keurig can no longer hold water, but it can also lead to leaks and messes. In addition, if the crack is large enough, it can allow unfiltered water to enter your Keurig, potentially affecting the taste and quality of your coffee.

Solution – Repair the crack

There are some steps you can take to fix a cracked water tank in your Keurig. First, disconnect the Keurig from the power source and remove the water tank. Clean the tank thoroughly and inspect the crack or damage. If the damage appears minor, consider using a sealant or epoxy to fill in and seal the crack. If the damage is more extensive, consider buying a replacement water tank. This is also Keurig’s official recommendation to get the latest model.

4. Overfilling

The water reservoir can cause leaks in your brewer. This happens when too much coffee grounds are placed in the filter, resulting in water overflowing out of the coffee maker and making a mess. Overfilling can occur when too much coffee is used, using a finer grind, or when the filter is not properly placed or secured.

Solution – Don’t overfill

To prevent overfilling, it is important to measure and use the correct amount of coffee grounds for your particular model of Keurig coffee maker. The measurement should be based on the size of your cup or mug. Additionally, it is important to ensure the filter is properly placed and secured so the water can flow properly. 

5. Clogged Exit Needle

Clogged machine cause leaking while heating. the needle is a small, narrow tube that allows the water to flow from the water reservoir and into the filter. The clog can be caused by a buildup of coffee grounds, mineral deposits from hard water, or even a foreign object that has become lodged in the needle. This clog will create a blockage in the flow of water, causing it to leak out onto the counter and surrounding area.

Solution – Clean the exit needles

The solution to this problem is to clean the exit needle. To do this, you will need a small brush, such as a bottle brush or pipe cleaner, and wet the brush with vinegar. Use the brush to gently scrub the needle, making sure to get into the crevices and remove any buildup. Once you have cleaned the needle, you can reassemble the Keurig and enjoy your favorite cup of coffee. Make sure they are dry before putting them together.

6. Upper gasket is damaged or Loosed

This is a common problem with Keurig coffee makers; the upper gasket is either damaged or loose and is causing the machine to leak. The upper gasket is a rubber ring that runs around the edge of the top of the Keurig and helps keep the water from leaking out of the machine. When the gasket is damaged or loose, it can no longer keep the water contained, resulting in water leaking out of the machine.

Solution – Check the seal

To fix this problem, the first step is to locate the upper gasket and check to see if it is damaged or loose. If it is, it needs to be replaced with a new one. To do this, remove the old gasket and replace it with a new one, ensuring it is securely in place. Once the new gasket is in place, the Keurig should no longer be leaking. You can find a new gasket on amazon easily.

7. Wrong capsules

It is possible that the coffee pods or capsules you purchase from a store are not quite the proper sizes for the Keurig machine if you are using them. Additionally, they could have a thicker film cover that is more difficult to break through. Or it might be the altitude is not right.

Solution – Try the original capsule

To ensure that the capsule itself is not the source of the issue, you should procure a few original K-cups.

Related: A Complete Guide for Keurig Cup Size

8. Broken interior heating component or pipe

Broken pipes or heating panel can cause leakage. Carefully removing the back screws and exposing the back panels will let you see what’s causing the leaks in your Keurig machine. This should only be done after the warranty term has expired, however, as doing so may void the original warranty on your system.

Solution – Repair or replace damaged parts

After figuring out which part is leaking, you may get a new one quickly from a business that offers servicing or spares. 

A broken Keurig component is better off replaced than repaired, so do that immediately. Instead of using a hacked-together replacement part, invest in a brand-new espresso machine. You can also physically adjust and fix a loose component in the Keurig machine’s water circuit if it is the cause of the problem.

Also read: 30+ Common Keurig problems (How to fix them fast)

9. Tube connection failure and worn-out filters

The majority of the time, leaky tube connections are to blame when coffee spills into your mug. It makes the amount of coffee in your cup greater than what you had originally intended it to be. If the filters on your coffee maker are worn out, coffee could spill into your mug.

Solution – Get a new tube and filter

To stop leaks from occurring in the future, you should get new tube connections and filters.

You can find some new tubes and filters on amazon easily.

Contact Keurig support

If nothing works, contact Keurig customer support if your device is under warranty. You can also claim replacement for an unrepairable problem or wear and tear. Keurig coffee machines typically last for three to five years.

Final thoughts

A Keurig machine can start to leak for a variety of reasons, both from the top and from the bottom. If you experience any of these issues, you should take the necessary steps discussed above to fix the problem and enjoy an amazing cup of coffee.

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