Keurig Leaking Water When Heating – Why & How to Fix It?

Keurig Leaking Water When Heating

Many of us rely on that morning jolt of caffeine from our coffee to kick-start our day. So, imagine the surprise (and distress) when your trusted Keurig machine starts leaking during heating.

It’s not just a minor inconvenience; it can disrupt your whole morning routine! But before you panic, know that this is a common issue, often caused by a clogged needle.

Dive into this guide to uncover the reasons behind your Keurig’s unexpected behavior and get practical solutions to have it brewing flawlessly again.

Why Your Keurig Leaks Water While Heating?

There are quite a few reasons why your Keurig coffee brewer starts leaking when it is heated. Some of them include:

The O-Ring is Weary and Bad

If your Keurig coffee brewer has a bad O-ring, then it is quite likely to leak at the bottom. You can fix the leakage issue by removing and replacing the O-ring with a new one.

And if you don’t know where to get a replacement, you can get in touch with Keurig’s customer support. They will provide you with a doorstep delivery service for your replacement.

Seal on the Water Reservoir Has Perished

While filling water in your Keurig coffee machine, a small valve underneath is pushed open, thereby letting the water flow. If you take a closer look at the water tank, you will notice the seal on the valve.

Over time and rigorous usage, it is likely for the valve and seal to perish, thus resulting in water leakage.

Restoring the seal is probably the quickest remedy you can apply. Also, you can lubricate the seal at the joint of the coffee brewer. Remember to grease the silicone seal regularly to preserve its sealing characteristics.

Water Tank Has Cracked

Water might start leaking from your coffee brewing machine because of a pinhole or a crack. This is very likely if you ever dropped your brewing machine on the floor. Inevitable hairline cracks on the water reservoir might also be a reason for water leaking during heating.

If you cannot repair or solder the crack on the reservoir, you can choose to replace it. And if you have the requisite resources, you can consider replacing the entire unit of your Keurig coffee brewing machine.

Has an Improper Gripping for the K-Cup

Your Keurig coffee brewer tends to leak if the K-Cup lid is not adequately tight. While the water pressure builds up within the brewer, it efficiently blows the coffee into your mug.

You can fix this issue by applying fixtures around the K-cup to add a tight grip with the brewer. You can also contact Keurig’s customer service to obtain a replacement of the K-cup lid for tightly fitting into your brewer.

Overfilling of the Water Reservoir

Another common cause of your Keurig coffee maker leaking is overfilling the water reservoir. To brew more coffee at once, you might sometimes end up filling it to the brim. But when heated water expands, it eventually leaks.

You can typically avoid the leaking issue by filling water up to the marked position. And failing to do so might end up inflicting severe damage to your Keurig coffee brewer as extreme pressure builds inside.

Broken or Loosen Upper Gasket

The upper gasket is made out of silicone. So with rigorous usage over time, it is very likely to loosen or even break, causing leakage while heating.

Fixing or replacing the gasket is easy, but you should ensure that the gaps between the K-cup and puncture needle are adequately closed. Doing so will efficiently prevent the water from your Keurig coffee machine from leaking.

Sediment Clogging

Over time, your coffee brewing machine might have water and deposits that can significantly clog the needle. So when the needle of your Keurig brewing machine is clogged, it is very likely to leak.

Cleaning the needle and the K-cup holder thoroughly is the best possible remedy to fix the leaking issue. And before you can assemble the parts, please ensure that they are dry.

Internal Pipework or Heating Element is Damaged

You can easily locate a leak by running your coffee machine when it is disassembled. This will give you clear insights regarding the possible damages that cause leakage.

But when you try this trick, ensure that you carefully disassemble your Keurig coffee maker. Remember, this can void your machine’s warranty. So it would be best if you considered disassembling only when the warranty period is over.

Capsules are Defective

Reusable capsules or 3rd party coffee pods are usually not of the right size. Also, the thicker film lid is quite hard to penetrate. So your Keurig coffee machine might leak when you’re using the wrong size.

Replacing the capsule with genuine ones might be a remedy for this pestering issue.

Puncturing Needle is Dirty

A puncture needle might become non-functional when it is clogged with sediments. Cleaning the exit needle can significantly eliminate the leakage issue.

Tube Connectors are Faulty, and Filters are Worn-Out

If your Keurig has faulty tube connectors, your coffee machine will likely leak. The quickest remedy to fix the leakage is by replacing the filters and tube connectors with new and genuine ones.

How to Fix the Leaking Issue of Keurig While Heating?

To eliminate the leaking issue of your Keurig, you can choose to replace or repair the faulty components. Here are some quick fixes you can try as per the causes.

Try Replacing the Lid of the K-Cup

Your Keurig coffee maker might leak because of the loose grip of the K-cup lid. Replacing the lid with a new one or fitting something tighter around the cup can significantly resolve the issue.

Avoid Overfilling the Water Reservoir

Filling the water reservoir up to the marked line will efficiently help in preventing leakage. So whenever you fill the tank, it should always be equal to or less than the recommended amount.

Repair or Replace the O-Ring/Upper Gasket

You can detach and repair or replace the upper gasket to prevent leaking from your Keurig coffee maker. You can use a plastic opening tool for unscrewing and prying off the O-ring. Also, you can get in touch with Keurig’s customer support and demand an O-ring replacement.

Thoroughly Clean and Unclog the Brewer

If you notice that the clogged parts are causing your coffee brewing machine to leak, you should consider unclogging first. With the help of a paper clip, you can consider unclogging the puncture needle.

Also, you can use soap water for thoroughly cleaning and removing the clogs. This way, the issues of water leakage will stop.

Repair the Damaged Heating Elements/Internal Pipework

Troubleshooting by disassembling your coffee brewer will efficiently help you find whether the internal pipes are loose or leaking. For this, you need to unplug and unscrew the rare panels and visually locate the leaking components.

Once you locate the source, you can quickly fix it with a strong and heat-resistant adhesive. And after that, put them back in their correct positions until they are firm and secured.

Use Genuine K-Cup Pods

Using third-party pods can significantly cause water leakage issues from your Keurig machine. You can replace them with genuine K-cups to solve the problem.

Replace or Repair the Water Reservoir

If there are leaks in the water tank, you can fix them with hot glue or a soldering machine. While you cannot seal larger cracks, you should replace the water tank with a new one.

Detach and Restore the Silicone Valve

The silicone valve might wear away over time and cause water to leak. You can choose to restore it by using a silicone grease product.


That’s all, folks! Hopefully, this comprehensive troubleshooting guide has helped you understand all the possible reasons why your Keurig leaks. Also, the guide provides you with quick and easy solutions for fixing this issue according to the cause.

Sharing is caring!

Leave a Reply

Your email address will not be published. Required fields are marked *

Recent Content