Question about La Marzocco FB-80 Series 3 Groups Coffee Maker

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Need service manual for La Marzocco FB80 3AV

I do need urgently the service manual or owner manual for this La Marzocco FB80 3AV. I have got this leaking problem in the drip pan area. But don't know how to fix it.

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Posted on Jan 02, 2017

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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

Posted on Dec 08, 2007

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SOURCE: Unable to programme La Marzocco

FYI - the flowmeters can get fried after lots of usage. Back in the day Starbucks used to put pieces of cardboard between the flowmeter and group head to prevent them from heating up. Aside from checking for scale you use test with an ohm reader. I think a functional one will reach 2.4ohm (or maybe 2.8). A broken one will post junk ohm information and bounce around. Replacing them is expensive so I'd just recommend usitng the semi-auto on/off switches. This info comes out of the big oragne Linea maintenance book.

Posted on Feb 21, 2009

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SOURCE: La Marzocco espresso machine troubleshooting

Where is the steam coming from the small valve on the top or the big tall one? If it is the tall one then the problem is in the block electrical box(pressure stat) on the left above the element, that may be stuck and not telling the machine that it has enough pressure turn off the elements.

Posted on Jun 20, 2009

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SOURCE: i need an operators manual

You can dowload one from

Posted on Jan 25, 2010

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SOURCE: Trouble shooting guide

You can dowload one from

Posted on Jan 25, 2010

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The hissing inside might be a leak from the vent valve or the level probe connections to the boiler. The leak from the middle if it is not the paddle version or group cap version then the plunger in the solenoid needs to be replaced. If it is the group cap version the plunger in the solenoid and or the gasket inside the group cover might need to be replaced. Before you open the group cover make sure you have replacement parts. You will need H1006, L103/A and L103/B and L100H.

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Check the thermostat on the top of the back boiler, if the red pin is up then, make sure that there is water in the boiler then push in pin and turn machine on. Now comes the exciting part we have to find out why the boiler overheated, is it because the elements are damaged or the pressure stat is not working properly.

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Constant leaking into my drip pan reservoir from the overflow valve

Here is how to repair, on the gauge there are 2 needles, the bottom one is what we will be checking. Turn the expansion valve clockwise slowly until it gauge reads 12 bars, if it goes past turn other way slowly. Your goal is to set it at 12 bars, when tat is done there will be a leak about a drip a second from the valve.

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