Keurig Supreme Won’t Turn On After Descaling (Easy Fix)

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If you’re an avid coffee drinker, you know the importance of maintaining your coffee maker to ensure a great-tasting cup every time.

Descaling is a crucial part of that maintenance process as it removes any build-up of mineral deposits inside the machine.

However, what happens when descaling actually causes your Keurig machine to stop working altogether? Don’t panic; this is a common issue with Keurig coffee makers.

If your Keurig machine stops working after descaling and won’t turn on, it may be due to a tripped thermal switch that powers the in-line heater. However, this issue can be fixed by resetting the entire machine. Before resetting, make sure to check if the plug is working properly.

In this blog post, we’ll go over the simple steps to reset your Keurig Supreme and get it brewing again, so you can continue enjoying your favorite cup of coffee without any interruptions.

Check the plug

The first step to resetting your Keurig machine after it has stopped working following descaling is to check the plug.

This is a necessary step to rule out any other possible issues with the power source.

You can do this by plugging another device into the same outlet to ensure that it is working properly.

If the plug is working, you can proceed to reset the machine.

This simple step can save you a lot of time and effort in troubleshooting other possible problems with your Keurig machine.

Reset Keurig Supreme

Resetting the Keurig Supreme can be a simple process that can save you from the frustration of having to buy a new coffee maker.

In this section of the blog post, we will guide you through the step-by-step process to reset your Keurig Supreme and get it brewing again.

Here are the steps to reset a Keurig Supreme:

  • Unplug the machine and remove the screws using an appropriate screwdriver.
  • Take the casing off using a small screwdriver.
  • Locate the unit’s physical thermal switch and grab a paper clip.
  • Stick the end of the paper clip into the center hole of the thermal switch until you hear an odd sound.
  • Plug the machine in to test if it is starting okay before re-installing the sides and screws at the bottom.
  • Press power to see if it will come on without an issue.
  • Unplug the machine and put everything back together.

Simpler reset method

Sometimes, resetting your Keurig Supreme machine can be a simple process that does not require any disassembly of the machine.

Here are the steps to reset the Keurig using a simpler method:

  1. First, unplug the machine and wait for a few minutes before plugging it back in. This can sometimes help reset the internal systems of the machine.
  2. Another alternative is to boil some water and dump it into the tank. This can help remove any excess buildup that may be causing issues with the machine.
  3. Turn on the Keurig and select a cup size to brew. This can help clear out any remaining debris from the machine’s internal system.
  4. Wait for a little as it brews and turn it off. This can help reset the machine and ensure that it is working correctly.
  5. Empty the reservoir and retry. This can help ensure that any remaining buildup or debris has been removed from the machine.

Reset Keurig Supreme descale light

In this part of the blog, we will guide you through the process of resetting the descale light on your Keurig coffee maker.

Sometimes, even after descaling your machine, the descale light may continue to stay on, causing confusion and frustration.

However, no need to worry as we have outlined the simple steps below to help you reset the descale light and have your Keurig brewing your favorite coffee again in no time:

  • To begin with, make sure that during the rinse cycle, you allow the machine to completely empty. This helps to avoid the descale light staying on.
  • Fill the reservoir during the rinse cycle and let it run until it finishes completely.
  • When the machine signals to add water, fill it up again and let it rinse completely.
  • If the descale lights are still on, turn off the machine and press and hold down the 8 oz and 12 oz buttons simultaneously for about 5 seconds.
  • Run two tanks of water through the machine until the descale lights eventually shut off.
  • In case there is a large coffee grind stuck in the needle, poke a pin through it and the light should turn off as soon as you remove it.

Keurig Supreme says descale after descaling

In this subsection, we will be discussing how to address the issue of your Keurig continuing to display the “descale” message after you have already descaled it.

Follow these simple steps to reset the machine:

  1. Turn off the Keurig and fill the reservoir with water.
  2. Press and hold the 8 oz and 12 oz buttons together for about 3 seconds.
  3. The machine should turn on and the center “K” should flash, while the descale light should stop blinking.
  4. Run two tanks of liquid through the machine (use your descale solution for the first tank, and plain water for the second tank), and the descale light should turn off after this process is completed.

Here is an alternative method for use if the steps above aren’t working:

  • Turn off the Keurig Supreme coffeemaker
  • Simultaneously hold down the 8oz and 12oz buttons until the descale light stays on solid and the K-button is lit
  • Keep pressing the K-button while running water through the machine into a cup
  • Repeat the process until the descale light turns off (It may take 2-3 full tanks to do so)

Disassembling Keurig Supreme

Disassembling your Keurig Supreme may be necessary to fix certain internal components that are not accessible from the outside.

Follow these steps to disassemble your Keurig Supreme:

  1. Unplug the machine and remove any remaining water or coffee from the reservoir and pod holder.
  2. Turn the machine upside down and remove the screws on the bottom of the machine using an appropriate screwdriver.
  3. Carefully remove the bottom cover to access the internal components of the machine.
  4. Use a small screwdriver to remove the screws on the sides of the machine.
  5. Gently remove the side panels to access the internal components.
  6. Be cautious not to damage any of the wires or components while removing the panels.
  7. You should now have access to the internal components of the machine and can troubleshoot any issues or replace any faulty components.
  8. Once you have finished, reassemble the machine by following the steps in reverse order.

Note: Disassembling your Keurig Supreme may void any warranty you have on the machine. Only attempt to disassemble the machine if you are comfortable doing so and have experience with electronics.

Useful Tips To Keep In Mind If Your Keurig Supreme Won’t Turn On After Descaling

It’s important to never reset your Keurig machine while it’s powered on or plugged in.

Also, avoid repeatedly running hot water and vinegar through the system.

This can overload the thermal switch and cause it to trip, resulting in your machine not turning on after descaling.

To prevent having to go through the long process of disassembling your Keurig machine (which can be quite daunting), it’s always best to descale your Keurig immediately when the descaling notification appears.

And make sure there’s always water in the reservoir during every step of the descaling process, otherwise, the unit could burn out.

By following these simple steps, you can keep your Keurig machine in tip-top shape and prevent any potential issues from occurring in the future. Happy brewing!

Testing the Keurig Supreme

Once you have finished reassembling the Keurig Supreme, it’s important to test whether it’s working properly.

Here’s how:

  1. Fill the water reservoir: Fill the water reservoir with clean water.
  2. Power on the Keurig: Plug in the Keurig Supreme and turn it on.
  3. Select a cup size: Select a cup size to brew.
  4. Brew a cup of coffee: Insert a K-cup and brew a cup of coffee.
  5. Check for leaks: Check around the base of the machine for any leaks.
  6. Taste the coffee: Taste the coffee to ensure it’s brewing properly and doesn’t have any strange flavors.

If everything is working properly, then congratulations, you have successfully fixed your Keurig Supreme!

If you notice any issues during testing, then it’s important to repeat the previous steps to ensure that everything is assembled correctly.

Preventing Keurig Supreme Issues In The Future

Preventing Keurig issues is easier than you might think.

Below are a few tips to keep your Keurig running smoothly:

  1. Regular Cleaning: Cleaning your Keurig regularly is essential to keep it working properly. Make sure to descale it every 3-6 months or as needed based on usage. Clean the needle regularly to prevent clogging, and wipe down the exterior of the machine with a damp cloth.
  2. Quality Water: The water quality you use in your Keurig can have a significant impact on its performance. It’s recommended to use filtered or bottled water to prevent mineral buildup that can clog the machine.
  3. Proper Storage: When not in use, store your Keurig in a clean, dry place. Avoid storing it in a damp or humid area, as moisture can cause damage to the internal components.


Descaling is an important process that ensures efficient brewing in Keurig machines.

However, if your Keurig machine has stopped working after descaling, don’t panic, as it is a common issue.

The above steps help reset your machine and make it start brewing again.

By following the steps in this guide, you can keep your Keurig machine in good working order and enjoy a delicious cup of coffee every time you brew.

Remember to regularly descale your Keurig to prevent future issues and keep your machine running smoothly.


Why did my Keurig stop working after I descaled it?

Sometimes, descaling your Keurig can cause it to stop working properly.

This is because the process involves using a mixture of water and vinegar to remove any mineral buildup in the machine.

If not done correctly, it can cause the thermal switch/control to overload and trip, which can prevent the machine from turning on.

Why is my Keurig not powering on?

If your Keurig is not powering on, it could be due to a variety of reasons. It could be due to a malfunctioning power outlet, a broken power cord, or a damaged internal component.

To troubleshoot this issue, you can try plugging your Keurig into a different outlet, checking the power cord for any visible damage, or contacting customer service for assistance.

How do I reset my K Supreme after descaling?

To reset your Keurig K Supreme after descaling, you can try the following steps:

  1. Turn off the machine and fill the reservoir.
  2. Hold down the 8oz and 12oz buttons simultaneously for about 3 seconds.
  3. The machine should turn on and the center K should flash, while the descale light should stop blinking.
  4. Run two tanks of liquid through the machine (your descale solution first, then water only for the second tank), and the descale light should go out once you do this.

How do I manually reset my Keurig?

To manually reset your Keurig, you can try unplugging it from the power source, waiting for about 30 seconds, and then plugging it back in.

Alternatively, you can try holding down the 8 oz and 12 oz buttons for about 5 seconds to force a reset.

Is there a way to reset a Keurig machine?

Yes, there are various ways to reset a Keurig machine, depending on the model you have.

You can try unplugging it from the power source, holding down certain buttons simultaneously, or following the manufacturer’s instructions for resetting the machine.

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Jacob Harris

Jacob is a coffee enthusiast who turned his passion into a career. As the owner and editor of Karma Coffee Cafe, he shares his extensive knowledge and recommendations, captivating fellow coffee lovers.

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