Keurig Descale Light Stays On: An Easy Fix - Karma Coffee Cafe (2023)

If you’re an avid coffee lover, chances are you rely on your Keurig machine to brew that perfect cup of joe.

However, encountering issues with your Keurig can be frustrating, especially when the descaling light won’t turn off. Don’t worry!

In this blog post, we’ll provide you with a concise troubleshooting guide to help you tackle this common problem and get your Keurig back to its optimal functioning.

By following these steps, you’ll soon be sipping your favorite coffee once again, hassle-free. Let’s dive in!

Understanding the Persistent Keurig Descaling Light: Possible Causes

When the descale light on your Keurig coffee maker remains illuminated, it’s essential to identify the underlying causes. There are a few common reasons why the descale light may stay on, and understanding them can help you address the issue effectively.

Mineral Deposits and Calcium Build-up

The descale light serves as a reminder to clean your Keurig and remove mineral deposits or calcium that accumulates over time.

If particles of calcium or dirt collect on the inner components of the machine, it can result in clogs that impede the machine’s proper functioning. C

Consequently, the descale light may remain on, indicating the need for a thorough cleaning process.

Refillable K-Cup Usage

If you utilize refillable K-Cups, it’s crucial to ensure that you don’t pack them too tightly. When the cup is overly compressed, it restricts the water flow inside the machine. This obstruction can trigger the descale light to activate, signaling the need for descaling.

By considering these potential causes, you’ll be better equipped to troubleshoot the persistently illuminated descale light on your Keurig machine. Let’s explore the next steps to help you resolve this issue and restore your coffee brewing experience.

Resolving the Persistent Keurig Descaling Light Issue: Troubleshooting Steps

If you find yourself in a situation where the descale light on your Keurig won’t turn off, there are several troubleshooting steps you can take to resolve the issue.

Let’s explore some of the recommended methods that have proven effective in addressing this problem:

(Video) How To Turn Off Descale Light On Keurig K Supreme-Full Tutorial

Cleaning the Exit Needle

When you encounter descaling problems with your Keurig and the descale light remains on, it may be necessary to clean the Keurig exit needle.

Upon close inspection, you’ll notice a small protrusion on the bottom of the K-cup that is pierced by a tiny needle during brewing.

Occasionally, this needle can become clogged due to a buildup of coffee grounds or debris, resulting in an inability to brew coffee.

To address this issue, the easiest solution is to carefully insert a sewing needle or paper clip into the needle, loosening and cleaning it.

By performing this quick maintenance step, you can ensure that the exit needle is clear of any blockages, allowing your Keurig machine to function properly and resume brewing your favorite coffee beverages.

Run More Water Through Your Keurig

The most common reason for the descale light to remain on is an incomplete descaling cycle. To tackle this issue, try running two full water tanks through your Keurig.

This process helps ensure that any remaining mineral deposits or build-up are thoroughly flushed out, allowing the descale light to turn off.

Reset the Unit

If running additional water through the Keurig doesn’t resolve the problem, a reset might be necessary.

This involves turning off all functions on the machine and starting over by following the steps outlined in the user manual.

Resetting the unit can often clear any glitches or errors that may be causing the descale light to persist.

Hold the Brew Btton:

In cases where descaling the Keurig machine fails to turn off the descale light, a simple technique involves holding the brew button for approximately five seconds.

This action can help force the water pump to operate properly, potentially resolving the issue.

(Video) How to get the descale light to turn off on your Keurig.

Unplug the Keurig Machine for a Few Minutes

Some Keurig users have reported success in turning off the descale light by unplugging the machine from the power source for a few minutes.

After the brief pause, plugging the machine back in may result in the descale light finally turning off.

This method can sometimes reset the machine’s internal sensors and resolve any lingering issues.

Repeat the Descaling Process with More Solution or Vinegar

If all else fails, you can attempt to repeat the descaling process using a higher concentration of descaling solution or try descaling with vinegar or citric acid.

These substances can help break down stubborn mineral deposits and eliminate any blockages within the machine, allowing the descale light to finally turn off.

Remember to follow the steps in the manual and provide all relevant details about your machine and the troubleshooting steps you’ve already taken when contacting customer support.

Proper Descaling Frequency and Maintenance for Your Keurig Machine

Properly descaling your Keurig machine is crucial for maintaining its performance and extending its lifespan.

Understanding how often to descale your machine and the importance of maintenance can help you enjoy consistently delicious coffee. Let’s delve into the details:

Descaling Frequency

The frequency of descaling your Keurig machine largely depends on the mineral content in the water you use.

Keurig recommends using filtered or bottled water to minimize mineral build-up. Generally, descaling should be performed every 3 to 6 months.

However, certain Keurig models have a descale light indicator, which serves as a helpful reminder to descale the machine when it activates.

It’s important to note that the descaling frequency may vary based on the specific model and water quality.

(Video) Descaling a Keurig K Slim Coffee Maker

Responding to the Descaling Light

When the descale light on your Keurig machine turns on, it’s crucial to address it promptly.

The descale light indicates that mineral deposits have accumulated inside the machine, affecting its performance and the quality of your coffee.

When the descale light activates, it’s recommended to descale the machine as soon as possible to maintain optimal functionality.

Water Filter Replacement and Cleaning

Regular maintenance of your Keurig machine includes changing the water filter approximately every two months.

The water filter helps reduce impurities and maintains the taste of your coffee.

Neglecting to replace and clean the water filter can result in a compromised coffee flavor.

Make sure to follow the manufacturer’s instructions for proper filter replacement and cleaning to ensure the best brewing experience.

By adhering to the recommended descaling frequency and proper maintenance practices, you can keep your Keurig machine in excellent working condition and enjoy consistently delicious coffee every time you brew.

Preventing Future Descale Light Activation: Maintenance Tips

To ensure that the descale light on your Keurig doesn’t come on frequently, there are a few maintenance practices you can implement.

By following these tips, you can minimize the build-up of limescale and foreign particles, keeping your Keurig machine in optimal condition.

Use Filtered Water

Using tap water in your Keurig can contribute to the gradual build-up of limescale and other impurities. While using a water filtration unit on your tap can help reduce the mineral content, it’s still advisable to use filtered or bottled water for brewing.

Filtered water contains fewer minerals, which in turn reduces the frequency of descaling required.

(Video) How to Reset a Keurig Coffee Maker in 5 Easy Steps

Regular Descaling

Even with filtered water, some limescale and debris may accumulate over time.

It’s important to establish a regular descaling routine to remove these build-ups and maintain the performance of your Keurig machine.

For most Keurig coffee makers, the optimal descale frequency is 3-6 months.

Proper Cleaning and Maintenance

In addition to descaling, regular cleaning and maintenance of your Keurig machine are essential.

Clean the external surfaces with a damp cloth and regularly remove and clean the removable parts, such as the K-Cup holder and drip tray. Refer to the user manual for specific cleaning instructions tailored to your Keurig model.

Resetting the Keurig Duo: Turning Off the Descaling Indicator Light

Resetting the descaling indicator light on your Keurig Duo requires a slightly different approach due to its dual functionality for single-serving coffee and carafe brewing. Follow these steps to reset the light manually and turn off the descale indicator.

  1. Turn off Your Keurig Duo: Ensure that your Keurig Duo is powered off before proceeding with the reset process.
  2. Press the 8-Ounce and 10-Ounce Buttons Simultaneously: Locate the 8-ounce and 10-ounce buttons on your Keurig Duo. Press and hold both buttons at the same time.
  3. Hold for Three Seconds and Release: Continue holding down the 8-ounce and 10-ounce buttons for approximately three seconds. Then, release both buttons.
  4. Observe the Descale Indicator Light: After performing the above steps, the descale indicator light on your Keurig Duo should turn off, indicating that the reset was successful.

By following these instructions, you can manually reset the descaling indicator light on your Keurig Duo.

It’s important to note that before resetting the light, it is recommended to descale both the single-serving coffee dispenser and the carafe to ensure proper maintenance and optimal brewing performance.


Dealing with a Keurig descale light that won’t turn off can be frustrating, but there are several steps you can take to resolve the issue. Start by running more water through your Keurig and resetting the unit.

If the problem persists, try holding the brew button or unplugging the machine for a few minutes. Additionally, consider repeating the descaling process with more solution or vinegar if needed.

To prevent future descale light activation, use filtered water and descale your Keurig regularly.

Remember to clean the machine thoroughly, including the exit needle, and replace the water filter as recommended.

(Video) KEURIG K EXPRESS How To Clean / Descale With Keurig Descaling solution HOW TO Turn OFF DESCALE LIGHT

By following these maintenance practices, you can keep your Keurig in optimal condition and enjoy delicious cups of coffee without the hassle of a persistent descale light.

Remember, the descale light serves as a reminder to maintain your Keurig machine and ensure its longevity.

By staying proactive with descaling and proper maintenance, you can keep your Keurig running smoothly and consistently brew your favorite coffee beverages. Cheers to great-tasting coffee and a well-maintained Keurig!


Why won t the descale light on my Keurig go off after descaling? ›

If descaling the Keurig machine doesn't turn off the descale light, Keurig users are advised to repeat the process with more solution or descale with vinegar or citric acid. If it's still not working, Keurig users should hold the brew button for five seconds to force the water pump to work properly.

What happens if descale light won't turn off? ›

If you've already descaled it recently, you'll still need to brew through two full reservoirs of water before the light turns off. Fill your reservoir with water, and press the flashing brew button. Wait till the coffee mug is full of water, and then empty it. Put the mug back, and press the brew button again.

How do I manually turn off my descale light? ›

Calcium and scale are non-toxic, but left unattended, they can hinder your brewers performance. *To turn off the descale indicator light once you have completed descaling your brewer, press and hold down the 8oz & 10oz buttons together for 3 seconds.

Why is my Keurig descale light on and won't brew? ›

The reason the descale light is on and your Keurig coffee maker won't brew is due to the water lines and needles having too much dirt and grime building up inside the internal tubing.

Why is my descale light still on? ›

The most common reason the descale light won't turn off is that the descaling cycle isn't complete. You must run two full water tanks through the machine to finish the descaling cycle. Depending on the model of your Keurig, the descaling cycle can take anywhere from 15 minutes to an hour.

Why is my calc light still flashing after descaling? ›

The descaling cycle was interrupted

If you have stopped it earlier, the light will stay on or keep flashing. In this case, turn off the machine and start the descaling procedure again and let it run till the end. After this the calc light should turn off automatically.

Can you still use Keurig when it says descale? ›

Rinse the reservoir thoroughly, fill it with fresh water, and run a cleansing brew. Repeat until the Descale notification turns off. Once the Descale notification turns off, your brewer is ready for use again.

How do I reset the descale light on my Keurig Reddit? ›

Turn the machine off and hold down 8 oz and 12 oz buttons. The descale light should stay on solid and not blinking and the big K button should be lit. Keep hitting the K button and run the water through in a cup. Keep repeating this and the descale should eventually shut off.

How long does it take for descaling to start? ›

The descaling process can be taken care of in a matter of 20 minutes, after which you may again enjoy the full yield of your Citiz® coffee machine.

Why is the descaling light still on after descaling DeLonghi? ›

If the descale light or message on your DeLonghi coffee machine is still on after you have descaled it, it's likely that the user has not completely followed the instructions for a descale or it has not been carried out correctly. This can prevent the coffee machine from resetting the message or indicator light.

What happens if you don't descale your coffee machine? ›

If your machine is left alone without cleaning, that residue will have a few undesirable effects on your coffee: Your coffee will begin to taste bitter. Your coffee and coffee machine will produce an acrid smell. Coffee residue can cause clogging and blockages that can render a machine unusable.

How do I get my Keurig K Supreme Plus to stop saying descale? ›

Empty the water reservoir and refill to the MAX fill line with fresh water. When flashing, press the brew button to start the rinsing process. Once the brew is complete, pour the hot liquid into the sink. Repeat this step until the DESCALE notification turns off.

What does it mean if your Keurig stops working when descaling it? ›

If you have given your Keurig a real good descale, and it is not working, the reason may be the thermal switch tripped during the descaling process due to the machine overheating. In this instance, all that is required of you is to wait and let your machine cool down.

How to do a hard reset on Keurig Duo? ›

No, Keurig k-duo plus doesn't have a specific reset button. However, you can achieve brewer resetting by doing some steps. Unplug the brewer, remove the water reservoir, and rest the machine for 2 to 3 hours; rearrange the reservoir, plug it in, and turn it on. The resetting process is complete.


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