Keurig Descale Light Won’t Turn Off After Descaling – Quick Fix

keurig descale light

Are you frustrated with a Keurig descale light that won’t turn off and are tired of wasting time and effort looking for a solution? This guide is for you!

We’ll walk together through some common reasons why a Keurig coffee maker’s descale light won’t turn off after descaling and how to fix it quickly and easily.

If you have never descaled your Keurig coffee maker and are unsure about what the descale light is and why it comes on, I’ve included answers and instructions to all that later in the guide, but I don’t want to waste your time, so we’ll start with the solutions first.


If you're curious about what you're actually putting into your coffee maker when you descale it, check out my guide The Ingredients in Keurig Descaling Solution

And to learn about a quicker and simpler way to clean your Keurig, check out my article: How to Use Keurig Rinse Pods

How to Fix a Keurig Descale Light that Won’t Turn Off After Descaling

The most common reason a Keurig descale light stays on after descaling is that the Keurig was never set into descale mode prior to the descale solution and water being run through it.

To initiate descale mode after filling the water reservoir with the descaling solution or vinegar, follow the steps below:

1. Plug in the Keurig and make sure that the power is off.

2. Hold down the 8-ounce and 12-ounce buttons at the same time for 3 seconds

3. The “K” brew button should start flashing, press it to initiate the descaling process and begin descaling

Now that the Keurig is in descale mode, the descaling process after this point will include running one full water reservoir of equal parts descaling solution and water (equal parts white vinegar and water works as well) until the add water light comes on.

Let the machine sit for 30 minutes.

Then fill the water reservoir full of regular water and run that through the machine using the largest brew size button until the add water light comes on. Repeat running full water reservoirs through the machine until the descale light turns off.

This may take 10-12 cycles or up to 3 full reservoirs of water.

For most people who have a descaling light that won’t turn off after descaling, restarting the process and beginning it by initiating descale mode first will fix the issue. It’s a fairly common problem since instructions to do so are not obvious.

The reason that this solution works is that the descale button starts flashing on a Keurig after a preset number of brew cycles have been run since either the purchase of the machine or the last descale. So if you don’t initiate descale mode, which tells the machine that it is being descaled, it will have no way of knowing you have cleaned it.

If you don’t initiate, it seems that the Keurig coffee maker will be unable to recognize the descaling solution as any different than regular water used to make a normal cup of coffee.

Other Solutions to a Keurig Descale Light that Stays On After Descaling


If you have tried descaling your Keurig after initiating descale mode by pressing the 8oz and 12oz buttons simultaneously, here are some more tips and tricks you can use to get that pesky descale light off for good.

After Descaling Unplug the Keurig Machine for a Few Minutes
The classic “Have you tried turning it off and on again” sounds ridiculous, maybe even insulting, but it can work. Some Keurig users online have reported that after descaling and seeing the light still on, they unplugged the machine for a few minutes, and then after plugging it back in the descale light was off.

This probably resets the machine in some way. If it doesn’t work for you, we have more solutions below.

Related: 17 Actually Useful Keurig Accessories

Run More Water Through and Wait Until the “Add Water” Light Comes On
The descaling process includes running a full water tank of descaling solution and water, or white vinegar and water, through the Keurig. After running through all the descaling solution and the “add water” light comes on, you then run a water reservoir of rinsing cycles with regular water.

If your descale light is still on at this point, the Keurig may just need more rinsing cycles of water. Some people report that their descale light did not go off until after 3-4 full reservoirs of water were rinsed through the machine.

It’s also really important that you wait to refill the water reservoir during descaling until the “add water” light comes on. This is a way the machine keeps track of how many full reservoirs have been run through and so if you refill the reservoir early, the Keurig won’t know that it's been properly descaled.

Remove the Water Reservoir
Some Keurig owners online have found that if your machine has a removable water reservoir, removing it after descaling may tell the machine that the descaling process is finished, and will turn off the light.n

Clean the Needle
There could be mineral deposits or even coffee grounds clogged in the needle that sends hot water into the K-cup. You can use a paperclip to get into this needle and free up any debris that may be stuck.

Clean Removable Parts
Another important piece of the descaling process is to ensure that all removable parts are cleaned. This will depend on the Keurig model that you have but removable pieces include the K cup holder, water reservoir, and water filter. Just use warm water and soap. You can also clean the inside components of your Keurig that aren’t removable.

Read Your Keurig Model's User Guide
Keurig currently has dozens of models for sale, and dozens more that have been discontinued but are still used by some people. Machines vary from two buttons only to touch screens with temperature adjustment and smartphone app control. So to make sure you’re properly descaling the Keurig model you use, I recommend taking a look at the descaling instructions in your machine’s user manual to see what Keurig recommends. n

You can find your Keurig Model User Manual online by googling “the Keurig model you own + user guide”

Return your Keurig for a New One
If you've tried all the solutions above and can't get that descale light off, your machine may be faulty and your time may be better spent replacing your Keurig rather than trying to fix it.

The good news is that if you bought your machine from Keurig, it should have a year-long warranty on it.

You can call Keurig’s customer Service team for assistance at 1-866-901-BREW(2739).

Put a Piece of Black Electrical Tape Over the Light
The last solution I have for those who can’t get their descale light to shut off is to put a piece of black electrical tape over it. As they say, sometimes ignorance is bliss. Tape won’t stop the blinking light, but it will make it easier to ignore. Just an idea.

What is a Keurig Descale Light

keurig cartoon

The Keurig Descale Light is a warning light on newer models of Keurig coffee makers that indicates the machine has mineral deposits and debris built up inside that need to be cleaned.

The descaling process involves first running a descaling cleaning solution or vinegar through the machine to clean it and then running water through after to rinse it out.

How Often Should I Descale my Keurig?

A Keurig machine should be descaled every 3-6 months to help prevent the build-up of calcium deposits inside of the machine. If filtered or bottled water with less mineral content is used, the Keurig will not need to be descaled as often. If “harder’ water with a higher mineral content is used, the Keurig will need to be cleaned more often.

Buy Official Keurig Descaling Solution on Amazon Here

How to Descale a Keurig Coffee Maker

To descale your Keurig coffee maker begin by filling the water reservoir with equal parts descaling solution and water. Distilled vinegar can be used in place of a descaling solution.

Then, with the Keurig plugged in but powered off, hold down the 8oz and 12oz buttons simultaneously for about 3 seconds. The “K” brew button should start flashing. This means descale mode has been initiated.

Run the descaling solution through the machine into a mug and pour the filled mug into the sink. Repeat until the water tank is empty of the descaling solution and the “add water” light is on.

Let the machine sit for 30 minutes.

Next fill the water reservoir with water and run that through the machine using the largest brew size button until it is empty and the “add water” light is on. Dump the hot water out.

For instructions directly from Keurig on how to descale your specific model tap here.

If you’re a visual learner, here’s a helpful one-minute youtube video that will walk you through the entire descaling process start to finish.

This article was written by Josh, the founder and owner of You can learn more about Josh on our About the Team page here.


22 thoughts on “Keurig Descale Light Won’t Turn Off After Descaling – Quick Fix”

  1. Thank you for your expertise on how to shut off this blinking descale,light!
    I tried everything!
    I had to laugh though when you mentioned the electrical,tape and I was this short of doing that, I couldn’t stop laughing!
    Finally after 2:hours of rinsing rinsing rinsing.
    I unplugged, took off water reservoir, held buttons down. And it finally turned off. ,!
    Thank you again! It was very helpful!

    Linda Stupi

  2. I have run five reservoirs full of water, held down the 8 & 10 buttons numerous times, unplugged it and let it set 10 minutes and 30 minutes, the descale light will not go off The Keurig works fine so I’ll just leave the light on.

    1. Same experience here. Nothing will make the light turn off, but my K light never did turn on after pressing 8 and 12, so maybe it doesn’t recognize that it was ever in descale mode. Very frustrating. The last time I did this the Keurig did descale properly, but then it would never make coffee again, so it had to be replaced. Obviously, there is something wrong with the design.

    2. You may have not put it in descaling mode. With the power off but plugged in, did you press the 8 and 12oz buttons so it now says Descaling?

  3. Have you ever experienced the add water light not come on? I’m in descale mode and I am running water through and I’m noticing the add water light is not coming on

    1. Yes, this happens on my K Supreme Plus. You must never let it run out of water; water must be above black water inlet port where the water filter clicks onto. Keep adding water, then hitting the K button to run more hot water until it finally says add water on its own. If you let it run dry, it triggers an over temp switch inside machine turning all power off. There are videos showing you how to take it apart & reset the temp switch with a paper clip. It is not easy getting it apart though.

    2. Found a nice K900 model at the town free exchange shed. Descale was blinking. Tan the vinegar through thinking I was descaling but light never stopped flashing. I was making the same mistake as others and trying to put it into descale mode with the power switch on but once I realized I have to press the 8 and 12 ounce buttons with the power switch OFF (unit plugged in) the descale light Stopped flashing but was now on solid. Let two tanks of water rinse through (add water light coming on twice) the descale light went from solid on to OFF finally! Woo hoo! I’ll have to remember this when it starts blinking again some day in the future!

  4. It’s electrical tape for me! Won’t stop blinking, blinking, blinking! Keurig needs to come up with a better fix! Like a descale off button! 🙁

  5. After trying different YouTube videos on this topic, I finally figured out how to get the Descale light off. Your instructions were right, and I realized that I had not followed them properly, so maybe others didn’t, either. The key for me was to hold the 8 and 12 buttons down with the power off but the machine plugged in. When I first ran the descaling liquid through the machine, I had trouble getting the K light to come on, so I raised the lid, which turned the machine on. Even though I had descaled it, the Keurig didn’t recognize that I had, so I started over, using the correct directions. This time, when I pressed 8 and 12, I waited for the K to light up and proceeded with the remaining instructions. Finally the Descale light went off. It pays to follow directions specifically. Thanks!

    1. DUH! Do I feel stupid! I did the same thing. Finally got the light to stop blinking! LOL Guess I didn’t read the ENTIRE directions! And this is not my first time descaling either!

  6. If it’s in the descale mode, the light does not blink but stays on. I did the same thing as Lucy above and turned the power on before I started the descale mode. That bypasses the descale mode. So like Lucy, I started over again plugging in the machine, pressing the 8and 12 oz buttons and let the machine power on by itself. Like magic, the descale light went off.

  7. With so much ado (above) about the descale flashing signal, seems obvious there is a flaw. Keurig, take notice. I had to dump my previous Keurig around his matter–stopped working after a crazy-making descaling. Might be easier, Keurig, to make a note to owners to descale every three months: eliminate the flasher…

  8. It was Time to descale my Keurig single cup machine. Followed the manufacturer direction for this equipment. The descale light kept flashing after following the directions. I turned the machine off, unplug the unit and it never turned back on after unplugging the unit. What a piece of junk.. The manufacturer owes me a new machine for their faulty equipment that didn’t last a year.

  9. I have been doing everything that I was told to do even tried doing another cleaning the descale light still won’t stop flashing

  10. Tried talking to Keurig support who kept saying they were sorry and they could help but wanted my life history first. Online they wanted my credit card to get help. So not impressed with customer service. Will use tape for awhile and find a different coffee maker.

  11. Hi I purchased the 3 month Brewer care kit once my descale light came on. I followed the instructions on the solution bottle (which did not include to press and hold the 8 and 12 oz buttons to place into desacle mode) and my light was still on after I finished. It wasn’t until I Googled the problem that I read here what to do. Please help customers save time and print those instructions on the bottle. I had to repeat the full process and waste time.

  12. I have tried everything to get this light off. This is terrible. I guess I will be using the tape over the light. Come on Keurig.

  13. THANK YOU SO MUCH for the “descaling light” tip about holding down the 8oz & 12oz buttons 1st, although I had to do it after running 15 normal brewing cycles AND unplugging for a few minutes.
    The Keurig instructions should’ve lead with that. I wasted more time than I should’ve, but thanks to you I got it don’t properly.
    I notated it for next time and saved your page in case something else comes up!

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