Need to reprogram the espresso buttons to the cup sizes

You may have accidentally changed the amount setting for your espresso shot when resetting the descale counter.

If you lost the manual you can find one here.
http://www.gaggia-usa.com/support_docs/Gaggia_Brera_Quickstart_Guide.pdf

On page 11 (with the printed number 31) you find how to change these settings:

• Place a cup under the dispensing spout.
• Hold the "espresso size" button pressed for 5 seconds to enter the programming mode; the "coffee" icon will blink quickly and the coffee will start to be brewed; the icon will flash during the whole coffee brewing cycle.
• Press the same "espresso size" button again when the amount of coffee in the cup reaches the desired level.
At this point the button "espresso size" is programmed; each time it is pressed and released, the machine will brew the same amount of coffee that was just programmed.
The same operation can be repeated for the "Lungo size" button.

With unit powered on, Select Menu button, scroll down, and turn "auto off" to off selection. Cup size is selected after you put K Cup in. The display should flash on a default (1 of 5) cup sizes. You can manually change to the size you want. Alternatively, you can select the Menu button and change the default cup size (same process as stated above).

First thing I would do is try to program from another keypad (I am assuming you have a 2 or 3 group machine), it is possible that there is a problem with that keypad or flowmeter. If you cannot get into program mode using another keypad.

Hi!
When making a cup of coffee hold the button in until the coffee reaches the height you want then release button. You can set the 3 sizes in this manner
Ray AU

HI
It needs to be reprogramed. If some one holds a coffee button down to long it will reset itself back to small coffee.
Push and hold the button for the coffee you want, but hold it all the way through the process. Don't release the button until you get the amount of coffee you want for that button, then release the button. That should get you the same amount next time. You can do this for each coffee button.
If that doesn't fix it, then you might need a new flow meter.

Hi
Try reprogramming the machine. Push and hold the button for the coffee you want, but hold it all the way through the process. Don't release the button until you get the amount of coffee you want for that button, then release the button. That should get you the same amount next time. You can do this for each coffee button.

Hi
Try reprogramming the machine. Push and hold the button for the coffee you want, but hold it all the way through the process. Don't release the button until you get the amount of coffee you want for that button, then release the button. That should get you the same amount next time. You can do this for each coffee button.
If that doesn't fix it, then you might need a new flow meter.

HI
If it works for espresso, but it doesn't work for the large cup, try holding the large cup button down and keep it down. Let it go through the grind, the clicking, and if it starts to dispense coffee , still don't release it until you have the desired amount in your cup. Then release it.
If one of the coffee buttons is held down for 3 seconds or more and then released, the water program goes back to zero. No water. You have to reprogram the button like we did above.

Hi
Try reprogramming the machine. Push and hold the button for the coffee you want, but hold it all the way through the process. Don't release the button until you get the amount of coffee you want for that button, then release the button. That should get you the same amount next time. You can do this for each coffee button.
If that doesn't fix it, then you might need a new flow meter.

ok this is easy
you place your cup under the dispenser. Press the button but keep it pressed in to the desired level. Release and you have reprogramed the machine.