Delonghi Milk Frother Not Working After Descaling (Fixed!)

delonghi milk frother not working after descaling

“Hi! I stumbled upon your post on the De’Longhi forum about your milk frother troubles and thought I’d lend a hand. I’ve been down the rocky road of frother frustrations myself, so I get it.

I’ve put together a troubleshooting guide for you. It’s a bit detailed, but I tried to cover all bases. Check it out.”

This was how I reached out to someone who was complaining about his De’longhi milk frother not working after descaling. He followed my troubleshooting guide and fixed the problem. So, if your De’longhi milk frother is not working after descaling, read to resolve the issue.

Frother Doesn’t Power On

If your De’longhi milk frother fails to power on after the descaling process, it’s because of power supply issues.

During the descaling process,  the power supply connection may have been mistakenly disrupted. Another cause of this could be a failure of the internal electronic components of your De’longhi milk frother.


  1. Check the power source. Ensure the frother is properly plugged into a good power source. Confirm that the power cord and outlet are in good condition.
  2. Try resetting the frother to its default settings, as described in your user manual.
  3. This should resolve the problem.  But, if the frother still doesn’t power on, contact De’Longhi customer support for further guidance.

Frother Indicator Lights Not Working

You may be facing the issue where the indicator lights on the frother do not illuminate or flicker irregularly after descaling. This may be because the  descaling process has  affected the electronic components responsible for the indicator lights


  1. Turn off the frother, unplug it, and wait for a few minutes before plugging it back in. This can reset the electronic components that connect to the indicator lights.
  2. Ensure the frother is connected to a stable power source. Test with another power outlet to be sure it’s working.
  3.  If indicator light issues persist, contact De’Longhi customer support for further assistance.

Frothing Temperature Is Unstable

If your Delonghi milk frother struggles to heat milk well or the frothing temperature is inconsistent after descaling, it’s because of the issues with the temperature sensors.

The descaling process may disrupt the settings of temperature controls or affect temperature sensors, causing inconsistencies in maintaining the desired frothing temperature.


  1. Check if the temperature settings are properly configured for your desired milk warmth.
  2. Run a few cycles of hot water through the frother to ensure the complete removal of any descaling residue that might be affecting the heating element.
  3. If you’re comfortable, inspect the heating element for any visible issues or damage. Seek professional assistance if needed.

Frother Overheats And Shuts Off

It may be so frustrating when your frother overheats and shuts down unexpectedly after descaling.

This may be because the descaling process has exposed the frother’s internal components to a higher temperature. 

Making the safety mechanism of your machine to be triggered! This mechanism shuts off the Delonghi machine when it gets overheated.

Faults in the  Internal electronic components of your frother can also cause the frother to overheat.


  1. If the frother shuts down due to overheating, allow it to cool down before attempting to use it again.
  2. Ensure that the frother is placed in a well-ventilated area to prevent excessive heat buildup.
  3. If overheating persists, contact De’Longhi customer support for further assistance.

Why Is My Delonghi Milk Frother Not Working After Descaling?

Your Delonghi milk frother is not working after descaling because of clogged frother components, blocked air intake, and faulty frother parts. Let’s look into how to resolve these.

Clogged Frother Components

Descaling is meant to break up mineral deposits, but if not done regularly, it can dislodge larger chunks that clog the frother’s nozzles, steam wand, or filters.


  1. Check the instructions in your user manual to know how to safely disassemble the frother.
  2. Clean each part of the frother thoroughly with warm water and mild detergent. Use a soft brush or toothpick to remove any clogs from the nozzles or steam wand.
  3. Use a routine cleaning schedule to prevent future mineral buildup and clogs.

Blocked Air Intake 

  1.  Dust, kitchen particles, or other debris might accumulate around the frother’s air intake vents. Restrict airflow and affect the frothing efficiency.

Also, placing your Delonghi frother too close to a wall, can limit air circulation and lead to overheating.


  1. Gently clean the air intake vents using a small brush or compressed air.
  2. Ensure the frother is positioned with sufficient space around it to allow proper air circulation.
  3. Include the frother’s vents in your regular cleaning routine to prevent future blockages.

Faulty Frother Parts

Continuous use of your coffee machine for years and the descaling process can contribute to wear on critical parts, such as the motor or heating element. 

This can make your Delonghi milk frother suddenly stop working even after descaling.


  1. Reach out to De’Longhi customer support for guidance and repair options.
  2. You can also seek assistance from a professional technician for a thorough inspection of internal components.

How Do You Clean A Delonghi Milk Frother?

To clean a De’Longhi milk frother, follow these steps:

  • Use the clean function if your De’Longhi milk frother has a clean function. This function simplifies the cleaning process and ensures effective cleaning.
  • You can watch this video on how to clean the milk frother using the clean function. It provides step-by-step instructions and practical tips for cleaning.
  • Always remember to clean the steam connection. Neglecting this crucial part can lead to issues with frothing and the quality of your cappuccinos.

In case your milk jug is spluttering or if you forgot to activate the clean function immediately after use, there’s a quick cleaning method. 

  • Add 10 ml of De’Longhi milk cleaner to the jug, along with 90 ml of water. 
  • Dispense this solution into a cup or jug by pressing the milk delivery button. This helps sanitize the jug.


Why Does My Delonghi Milk Frother Not Work?

Your Delonghi milk frother does not work because of wrong settings, inadequate steam flow, and clogged nozzles.
Here’s how to resolve this:
Make sure that you’ve chosen the steam function on the control panel of your milk frother. This setting is essential for frothing milk effectively. 
Confirm that the steam dial is fully open. If it’s partially closed, the steam may not flow as it should, resulting in ineffective frothing. Turn the dial to the fully open position to allow for proper steam flow.
Examine the milk nozzle(s) closely to ensure they are completely clean and free of any milk clogs. Any residue or blockage in the nozzles can hinder the frothing process. 


These detailed troubleshooting steps will help you address the issues of your  De’Longhi milk frothers not working after descaling. Ensure you carefully follow every instruction given. if needed, seek professional assistance for more complex problems.

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