A Detailed Guide To Keurig Duo Descaling Troubleshooting

Welcome to the comprehensive guide on Keurig Duo descaling troubleshooting! If you’re a proud owner of a Keurig Duo coffee maker, you know how important it is to ensure its optimal performance. We’re here to help you address any descaling issues you may encounter with your Keurig Duo, so you can continue to enjoy a delicious cup of joe every time you brew.

Why Descaling Your Keurig is Important?

Why Descaling Your Keurig is Important?

If your coffee maker fails to descale, it will likely encounter problems during operation, such as compromised water flow or the presence of ground coffee in your cup. In more severe cases, it may even cease brewing altogether if the issue is left unaddressed for an extended period. Recognizing the early signs of scale buildup, such as the formation of a white film and sediment in the water reservoir. When the Keurig descale light illuminates, it may require multiple descaling cycles to effectively tackle the accumulated mineral deposits and gunk. If the descale light remains on even after following these steps, attempting a reset on the Keurig machine could be a viable solution.

Step-by-Step Guide to Descaling Keurig Duo

Step 1: Exterior Cleaning

Start by gently wiping down the machine’s body using a damp cloth and a small amount of detergent. Remember not to submerge the machine in water, as it can damage the electronics and cause rust. Keeping the exterior clean is essential to prevent dirt, grime, and greasy buildup from entering the machine and affecting its performance.

Step 2: Descaling Solution Rinse

Here is the process of descaling solution rinse:

  1. Remove any Keurig water filter and replace it if necessary.
  2. Mix the descaling solution with water following the instructions on the descaler.
  3. Fill the water reservoir with the descaling solution mixture.
  4. Plug in the machine, ensure it’s powered on, and remove any coffee capsules.
  5. Place a mug on the drip tray, press ‘POWER’, select ‘POD’, press ’12’, and hit ‘BREW’ to rinse the pod mechanism.
  6. Discard the contents of the mug.
  7. Insert the carafe onto the hotplate, press ‘CARAFE’, select ’12’, and press ‘BREW’.
  8. Turn off the hot plate using the ‘POWER’ button.
  9. Allow the descaling fluid to take effect by letting the brewer stand for 30 minutes.

Step 3: Fresh Water Rinse

Here is the process of fresh water rinse:

  1. Fill the water reservoir with fresh water up to the MAX FILL line.
  2. Place the empty collection mug back on the drip tray.
  3. Run a ‘Pod Rinse’ by pressing ‘POWER’, selecting ‘POD’, pressing ’12’, and hitting ‘BREW’.
  4. Empty the contents of the mug into the sink.
  5. Repeat the pod rinse at least three times for a total of four rinse cycles.
  6. Run a ‘Carafe Rinse’ by pressing ‘CARAFE’, selecting ’12’, and pressing ‘BREW’.
  7. Empty the contents collected in the mug into the sink.
  8. Repeat the carafe rinse at least three times for a total of four rinse cycles.
  9. Refill the water reservoir as needed during this process.

Troubleshooting Common Issues During the Descaling

Troubleshooting Common Issues During the Descaling

Keurig Duo not responding to the descaling process

If your Keurig Duo is not responding to the descaling process, it can be frustrating. One possible reason for this issue could be a malfunctioning power connection. Ensure that the machine is properly plugged in and receiving power. Additionally, check if the power button is functioning correctly. If the machine still does not respond, try resetting it by unplugging it from the power source for a few minutes and then plugging it back in.

Descaling solution not flowing through the Keurig Duo

If the descaling solution is not flowing through your Keurig Duo, it could indicate a clog in the system. Start by checking if the water reservoir is properly filled with the descaling solution and water mixture. Ensure that the machine is powered on and that there are no coffee capsules inserted. Another common cause of this issue is a blocked needle.

To address this, you can use a paperclip or a needle to carefully clean out any obstructions. Insert the paperclip or needle into the needle opening and gently move it around to dislodge any debris. It’s important to exercise caution while doing this to avoid any damage to the machine.

Keurig Duo still experiencing performance issues after descaling

If your Keurig Duo continues to experience performance issues even after descaling, there could be other underlying factors affecting its functionality. One possibility is a mineral buildup in the internal components that may require a more thorough cleaning. In such cases, it may be necessary to disassemble certain parts of the machine, following the manufacturer’s instructions, and clean them individually. Another factor to consider is the quality of water being used. Hard water can contribute to mineral deposits and affect the performance of the machine. Using filtered or bottled water can help mitigate this issue.

Additional Tips for Effective Descaling of Keurig Duo

  • Follow the recommended descaling frequency suggested by Keurig to prevent excessive mineral buildup.
  • Thoroughly rinse all removable parts, such as the water reservoir and drip tray, before and after descaling.
  • Use the appropriate descaling solution recommended by Keurig to ensure the effective removal of mineral deposits.
  • If the descaling process requires multiple cycles, allow sufficient time for the machine to cool down between each cycle.
  • Regularly clean and maintain the needle assembly to prevent clogs and ensure proper water flow.
  • Consider using filtered water or a water softener to minimize mineral buildup and improve the overall performance of your Keurig Duo.


How do you reset the descale light on a Keurig duo?

To reset the descale light on a Keurig Duo, unplug the machine for a few minutes, then plug it back in.

How do I force my Keurig out of descale mode?

To force a Keurig out of descale mode, perform a power cycle by unplugging it, waiting for a few minutes, and then plugging it back in.

How do you fix a Keurig that won’t descale?

If your Keurig won’t descale, try troubleshooting steps such as ensuring proper water reservoir filling, checking for clogs, and following the descaling process accurately.

What buttons do I push to descale my Keurig duo?

To descale a Keurig Duo, press the ‘POWER’ button, select ‘POD’, press the desired brew size, and then press the ‘BREW’ button.


Keeping your Keurig Duo coffee maker in top shape is essential for a consistently great coffee experience. By following the troubleshooting steps outlined in this guide, you can effectively tackle descaling issues that may arise. With a clean and well-maintained Keurig Duo, you’ll be able to savor the rich flavors and aromas of your favorite coffee blends for a long time to come.