Why Does My Ninja Coffee Maker Leak?

What causes my ninja coffee maker to drip? Coffee stands as the most consumed beverage in the USA, with the average individual indulging in over 2 cups daily in this region. Thus, any issues with your coffee maker can lead to unwanted stress. But, fear not; we’re here to enlighten you about the potential reasons your Coffee Maker might be leaking. Continue reading for more information.

Ninja Coffee Makers are one of the most used coffee makers in the USA. They offer you an efficient performance while being available at a comparatively affordable price. However, some issues may occur with the coffee maker over the course of time. Below, we will try to find out why your ninja coffee maker is leaking and some of the possible solutions.

Ninja Coffee Maker Leak: Diagnosing the Reasons

The leaking issue in the coffee maker can occur for various reasons. It can be something simple like lose valve and reservoir connection. And, it can be something serious like a damaged gasket and tubes. Below, we will discuss some of the possible reasons behind the leaking coffee maker.

Check the Filter

The filter is just one of the things that may produce the water. Don’t know where the filter is? Simply give a look at the user manual to find its location. Typically, blockage in the filter can cause leakage and the blockage occurs when you don’t clean them properly. You should clean the filter at least once within three months. Clean the filter according to the user manual to get rid of the excess leak.

Note that if there is very little water coming out of the filter, it is very normal. That happens because of the sputtering during the brewing which causes the splatter and drips of water around the filter.

Check the Reservoir

Overfilling the water reservoir of the coffee maker may also cause leakage. So, even though Ninja says you can entirely fill the reservoir, you shouldn’t as overfilling can cause overflow and leakage. However, it is okay to the fill-to line and it will not cause leakage. If there is still leaking, you should try with less water.

You also need to check the connection point of the reservoir and base. Sometimes the leak will come from there if they are not properly attached. While connecting the reservoir and the base, you should hear an audible click sound. This assure that both of the parts are properly connected. If you don’t hear that, then the things are not properly attached.

Inspect the Tubes and Connectors

Leakage in the tubes and the tube connectors can also lead to do the leakage. Well, it can be a bit tricky to find it out if the leakage is here. Begin with checking the rubber tubes that attach the coffeemaker and the reservoir. Besides, if the water is falling from the tube, you should follow it to identify where it is coming from. You may end up finding the hole in the tube. Else, it can be the connectors that join the tubes with the other parts.

If there is a hole in the tube, you need to replace it. Besides, you can tighten the connection if the water is leaking from the connector. If it doesn’t work, you require changing the connector. You will find these in the hardware shops.

Check the Gasket

The gasket is also called an O-ring which sits between the valve openings of the reservoir and the coffee maker. It is used to seal the connection and prevent leakage. The gasket can get damages and small leakage over the time which can cause the leakage. If the issue is causing by the faulty gasket, you will require replacing it. You need a rubber gasket or a neoprene washer which comes in the same size as the old one.

You will find the replacement gasket in the hardware shops. Once you got it, fit it around the connector of the reservoir and create a tight seal. Or, simply put it in the place of the old reservoir and seal is as it was sealed. Or, you can take the reservoir to the hardware shop and ask someone from there to help you fix it properly.

How to Clean the Coffee Maker

Issues like leakage is not directly connected with cleaning. But keeping the device uncleaned may cause buildups which can lead to damaged parts and leakage. So, you should clean the coffee maker regularly to keep it in a good shape. The standard way to clean the coffee maker is by using a vinegar water solution. It helps to reduce the buildup and clogging inside the machine. Here is what you need to do:

  1. Mix one part of vinegar with two parts of water in a small bucket. You may also prepare a 1:1 solution for a better cleaning. Now pour the solution into the machine.
  2. Now turn the coffee maker on and run a brew with the cleaning solution in it. Run the device on the highest amount settings. You can also remove the filter to allow the remnant to pass through the tubes to drain the buildup.
  3. Now you can repeat the process for a better cleaning several times. Simply pour the old mixture again into the machine and run a new cycle. Around 6 cycles should be enough to remove the buildups.
  4. The next thing you need to do is to run new cycles with clean water. This will help to eradicate the remaining vinegar to prevent the flavor and smell. You can repeat this step several times to completely eradicate the flavor and smell.
  5. That’s it. You are done. Now you can put back the filter and begin making coffee. This cleaning is recommended once in a month.


Ninja Coffee Maker can be a great companion for anyone to prepare a perfect cup of coffee every time. If your coffee maker is leaking, you should try the above diagnostic step to solve the issue. We hope that you will be able to solve the Ninja Coffee Maker leak after reading the article.