SOURCE: Calibration (2 group head la marzocco)
press and hold the swirl button on the first group (far left) lights will blink. press the button you wish to program, once you reach the amount of espresso you wish to give press the button again then it will be stored into memori do this to the rest of the buttons on the first key pad. after you finished the first group the computer will automatically transfer the same programing to the second group. Good uck
SOURCE: how do I increase grouphead
To increase dispense pressure you turn the adjustment screw at the pump. When pulling a shot (use espresso) on one group the bottom needle of the gauge should read 9bars while pulling the shot.
SOURCE: La Marzocco Linea 3AV...water is
Your front brew boiler likely has a dead heating element or there is a problem with the electrical system for the front boiler.
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