A question that arises for many users of Krups super automatic coffee makers is how to calibrate the coffee grinder so that it grinds faster. While the correct time is between 6 and 8 seconds, coffee makers take between 9 and 11 seconds, which causes too much ground coffee in the piston, and the extraction is not done correctly.
If your coffee maker is under warranty, the best thing to do is to call customer service and have it calibrated by them, but if the warranty has expired, I will explain what you can do to solve this problem.
Krups customer Service
Note: Entering the service menu can lead to more serious problems, so if you do so, it is at your own risk. In case of failure you can try to reset the machine.
How to calibrate the grinder of the Krups coffee makers with “prog” button
Programming or calibrating the grind time of this type of coffee maker is relatively simple because they have the “prog” button that will take us directly to the desired menu if we follow the steps described below.

Step by step for the calibration of the Krups coffee grinder with the “prog” button:
- Unplug the coffee maker from the mains.
- Remove the water container, the grounds container, and the tray over the grounds container.
- Press the “prog” button while plugging the brewer back into the mains.
- A grinding time selection menu appears on display.
- Turn the central knob and select the time you want.
- Once you have selected the type you prefer, press ok on the central knob.
- Unplug the coffee maker.
- Place the water tank and the tray over the grounds container and the grounds container itself.
- Plug in the coffee maker, and everything is ready.
- How to calibrate the Krups 8160 grinder
- This problem usually appears after a blockage of the grinder, which in most cases is caused by incorrect coffee beans or lack of cleaning of the Krups. Never use coffee beans that have not been roasted naturally, without sugar or other additives.
How to calibrate the Krups 8160 coffee grinder
This problem usually appears after a blockage of the grinder, which in most cases is caused by incorrect coffee beans or lack of cleaning of the Krups. Never use coffee beans that have not been roasted naturally, without sugar or other additives.

Step by step for the calibration of the grinder of the Krups 8160:
- Unplug the coffee maker from the mains.
- Remove the water container, the grounds container, and the tray over the grounds container.
- Press the arrow button while plugging the brewer back into the mains.
- Press the START button once, and brackets [ ] will appear on the right side.
- Press the START button once, and 3 zeros will appear inside the brackets [000] on the left side.
- Place both the water reservoir and the tray over the grounds container and the grounds container.
- Now press the START button.
- P2 appears.
- Press the steam button once to start the diagnostics.
- Water starts to flow from the steam nozzle.
- Press the steam button once.
- The piston goes down but not all the way down (twice).
- The piston goes all the way down, water flows through the piston, and the disk is ejected.
- P4 appears.
- Disconnect the coffee maker from the mains.
- Reconnect to the mains, switch on the coffee maker, and it will be calibrated.
Note: If your brewer does not have a tray over the grounds container, but the software is updated to that of brewers with a tray, it will not work as you cannot complete the step of inserting the tray over the grounds container, nor the necessary microswitch.

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hello Pablo, may I ask for your help pls? I tried the procedure for the 8160 on my EA 8150, that has basically the same set up and display but I never got it to show “P2” and now its stuck.. Is there a full reset procedure you know of? Anything I google just wont work..
thx,
George
Hi George, This type of problem comes from a faulty control board and probably the only solution is to replace it. However, you can try resetting the machine by following these instructions: https://coffeemakerpedia.com/how-to-reset-a-krups-superautomatic-coffee-maker
If nothing works, you should contact Krups customer service.
Thank you… and unfortunately it remains stuck, so going for a new board. Would you know if this is installed, the machine will start up “normally”..?
Hello George,
It should as the PCB is the brain of the coffee maker. Before purchase it, email the supplier asking for a possible devolution in the rare case this does not work.
Also try to get a machine sold for spares with another different issue. That way you can keep spares for the future.
Please, keep us posted about the evolution.