Nespresso Lights Keep Flashing After Descaling: How To Fix?

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If you’re a proud owner of a Nespresso machine, you may encounter occasional issues with its operation. One common problem that users face is when the lights on the Nespresso lights keep flashing after descaling. This can be frustrating, especially if you’re looking forward to enjoying your favorite cup of coffee. In this comprehensive troubleshooting guide, we will explore the possible reasons behind this issue and provide effective solutions to help you resolve it. So, let’s dive in and get your Nespresso machine back to brewing delicious coffee!

Nespresso Lights Keep Flashing After Descaling: The Issue Explained

Nespresso Lights Keep Flashing After Descaling
Nespresso Lights

Descaling is an essential maintenance process for Nespresso machines. It helps remove mineral buildup and ensures optimal performance and longevity of the appliance.

However, if the lights on your Nespresso machine continue to flash even after descaling, it indicates that there might be an underlying problem. The issue can be caused by multiple reasons, including:

Insufficient Water Level

One possible reason for the flashing lights is an insufficient water level in your Nespresso machine. When the water reservoir doesn’t have enough water to brew a cup of coffee, the machine signals this by flashing the lights. 

Incorrect Descaling Procedure

Another common cause of flashing lights after descaling is an incorrect descaling procedure. It’s important to follow the manufacturer’s instructions precisely when descaling your Nespresso machine.

If the descaling process is not performed correctly, the machine may not register that the descaling has been completed, leading to continuous flashing lights. Refer to the user manual or Nespresso’s official website for detailed descaling instructions.

Blocked Or Dirty Water Line

A blocked or dirty water line can also trigger the lights to keep flashing after descaling. Over time, mineral deposits and coffee residue can accumulate in the water line, obstructing the flow of water and affecting the machine’s performance.

Malfunctioning Sensor Or Circuit Board

In some cases, the flashing light issue may be due to a malfunctioning sensor or circuit board within the Nespresso machine. This can occur if there is an electrical or technical fault in the internal components of the appliance.

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If you suspect a sensor or circuit board problem, it is advisable to contact Nespresso’s customer support or take your machine to an authorized service center for professional assistance.

Power Supply Issues

Occasionally, the flashing lights could be a result of power supply issues. Ensure that your Nespresso machine is properly plugged into a functioning power outlet. Check the power cord for damaged or loose connections.

If necessary, try plugging the machine into a different outlet to rule out any electrical problems. Restarting the machine by turning it off and on again can also help resolve minor power-related issues.

How to Fix Flashing Lights Even After Descaling?

How to Fix Flashing Lights Even After Descaling
Nespresso Machine

To fix the issue of flashing lights on your Nespresso machine even after descaling, follow these steps

Check The Water Level

Ensure that the water reservoir of your Nespresso machine has an adequate amount of water. If the water level is too low, the machine may not be able to brew coffee properly, leading to flashing lights. Refill the reservoir to the right level.

Verify Descaling Procedure

Review the descaling procedure you followed to ensure that you did it correctly. Consult the user manual or Nespresso’s official website for detailed instructions specific to your machine model.

If you missed any steps or didn’t complete the descaling process entirely, repeat it accurately.

Clean The Water Line

Over time, mineral deposits and coffee residue can accumulate in the water line, causing blockages. Use a Nespresso-approved descaling solution or a mixture of water and vinegar to clean the water line. 

Restart The Machine

Sometimes, a simple restart can resolve major technical issues. Turn off your Nespresso machine and disconnect it from the power source.

Wait for a few minutes and then plug it back in. Turn the machine on again and check if the lights continue to flash.

Further Read: Nespresso Vs French Press

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If you tried all the steps and still you are not getting rid of it. You may change or replace your Nespresso machine. 

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How To Properly Reset A Nespresso Machine After Descaling?

To properly reset your Nespresso machine after descaling, follow these steps:

Perform The Reset

The exact reset procedure may vary depending on your Nespresso machine model. Generally, you can follow these steps:

  • Press and hold the power button or a specific combination of buttons on your machine. Refer to your machine’s user manual or Nespresso’s official website for the specific button combination required for the reset.
  • While holding the buttons, plug in the machine to the power source. Keep holding the buttons for a few seconds until the lights on the machine start flashing rapidly or a reset message appears on the display.
  • Release the buttons and wait for the machine to finish the reset process. This may take a few moments.

Complete the Reset Process

Once the reset process is finished, the lights on your Nespresso machine should return to their normal state or turn off completely. Now your Nespresso machine is ready for use

Run a Test Brew

To ensure that the reset was successful, run a test brew without any coffee capsules. This will help flush out any remaining descaling solution or residue from the system. Discard the water from the test brew.

Reassemble and Resume Normal Operation

Put the water tank back into its place and make sure it is securely attached. Your Nespresso machine is now reset and ready to be used for brewing your favorite coffee.

Why Does My Nespresso Machine Lights Flashing 3 times?

If your Nespresso machine’s lights are flashing three times, it indicates a specific pattern that can help identify the issue. The flashing lights can serve as a diagnostic tool to pinpoint the problem.

Here are some possible reasons why your Nespresso machine’s lights are flashing three times:

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Insufficient Water

Three flashes may indicate that the water level in the machine is too low. Check the water reservoir and ensure that it is filled to the appropriate level. Refill it if necessary, ensuring it is above the minimum watermark.

Capsule Not Inserted Properly

Another possible cause of three flashes is when the machine detects that the coffee capsule is not inserted correctly or is missing.

Ensure that you are inserting the capsule properly and that it is compatible with your machine model. Additionally, check if there are any obstructions in the capsule compartment.

Capsule Ejection Issue

Three flashes can also indicate a problem with the ejection of the used coffee capsule. Ensure that the capsule container is empty and properly installed. Check for any blockages or obstructions in the capsule ejection mechanism.

Machine Jammed

If the machine’s internal parts or mechanisms are obstructed or jammed, it can result in three flashes. Inspect the machine for any foreign objects or debris that might be causing the jam. If you discover any, gently remove them..

Technical Malfunction

In some cases, three flashes might indicate a technical malfunction or error within the machine. This could be due to various internal components or sensors not functioning properly. 

What Should You Do?

If your Nespresso machine’s lights are flashing three times, you must descale your Nespresso machine.

By descaling, you will be able to remove the internal minerals and limescale build-up generated in the machine parts.


Dealing with Nespresso lights keep flashing after descaling can be frustrating, but with the troubleshooting steps outlined in this article, you should be able to resolve the issue.

Remember to check the water level, follow the descaling instructions accurately, clean the water line if necessary, and seek professional assistance if the problem persists.

By taking proper care of your Nespresso machine, you can continue enjoying your favorite coffee without any interruptions.

Frequently Asking Questions:

Can I use a different descaling solution instead of the Nespresso-approved one?

It is recommended to use the Nespresso-approved descaling solution or the alternative descaling options suggested by the manufacturer. Using other solutions may not provide the desired results and could potentially damage your Nespresso machine.

How often should I descale my Nespresso machine?

The frequency of descaling depends on the water hardness in your area and the frequency of use. As a general guideline, Nespresso recommends descaling your machine every three months or after brewing approximately 300 cups of coffee. However, it’s always best to refer to the specific instructions provided by your machine.

Can I fix the sensor or circuit board issue by myself?

Fixing a malfunctioning sensor or circuit board requires specialized knowledge and expertise. It is recommended to seek professional assistance from Nespresso’s customer support or authorized service centers. Attempting to repair the internal components without proper training may cause further damage to the machine.

Why is it important to maintain a sufficient water level in the Nespresso machine?

Maintaining an adequate water level is crucial to ensure the proper functioning of your Nespresso machine. Insufficient water can result in interrupted brewing cycles and may trigger flashing lights. It’s important to regularly check the water level and refill the reservoir as needed.

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