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About this Manual

This operating guide is an integral and essential part 
of the product and must be supplied to users. Users 
are asked to read the enclosed warnings and cautions 
carefully, as they provide valuable information concerning 
safety during installation, operation, and maintenance.  
This manual must be kept in a safe place and be available 
for consultation to new and experienced users alike.

Remove Machine from Packaging 

Ensure product’s integrity by inspecting the packaging. 

Making sure it presents no signs of damage which might 

have affected the enclosed machine.

Check  the  machine’s  integrity  after  having  carefully 

removed the packaging.

Packaging (boxes, plastic bags, foam parts and whatever 

else) must not be left within easy reach of children, due 

to the potential danger it represents, nor be discarded 

in the environment.

Safety Instructions

Check to see that data on the rating plate corresponds 
to those of the main electrical supply which the machine 
will be attached.

The installation must be performed according to local 
electrical  and  plumbing  codes  and  regulations.    The 
installation  also  must  comply  to  the  manufacturer’s 

instructions, and must be performed by quali

fi

 ed and 

authorized personnel.

Incorrect  installation  may  cause  injury/damages  to 

people, animals or objects, for which the manufacturer 

shall not be held responsible.

Safe electrical operation of this device will be achieved 
only when the connection to the power outlet has been 
completed  correctly  and  in  observance  of  all  local, 
national, and international electrical codes and safety 
regulations, and particularly by grounding the unit.  Make 
sure grounding has been done properly as it represents 
a  fundamental  safety  requirement.    Ensure  quali

fi

 ed 

personnel check such connection.

Furthermore,  you  must  ensure  that  the  capacity  of 

the  available  electrical  system  is  suitable  for  the 

maximum power consumption indicated on the espresso 

machine.

We do not recommend using adapters, multiple plugs 
and/or extension cords. If you cannot avoid using them, 
make sure that they are exclusively of the kind which 
conforms to local, national, and international electrical 
codes and safety regulations, being careful not to exceed 
the power and current ratings indicated on such adapters 
and extension cords.

This device must be used exclusively for the functions it 

has been designed and built for.   Any other application 
is inappropriate and dangerous.The manufacturer shall 
not  be  held  responsible  for  any  damages  caused  by 

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improper and/or irrational use.

Using any electrical device requires that certain 
fundamental rules be observed. In particular:

-do not touch the device with wet or moist hands and feet
-do not use the device while not wearing shoes
-do not use extension cords in bath or shower rooms
-do not unplug the device from the power outlet by pulling on the   
  power supply cable
-do not expose the device to atmospheric agents
-do not allow children or untrained people to use this device

Before  performing  any  maintenance  and/or  cleaning 
operations (other than back 

fl

 ushing the group), turn the 

main switch to the “0” or OFF position, and disconnect the 
machine from the electrical network by unplugging the 
cord or by switching off the relative circuit breaker. For 
any cleaning operation, follow exclusively the instructions 
contained in this manual.  

In case the machine is operating in a faulty manner or 
stops working, disconnect it from the electrical network 
(as described in the preceding point).  Do not attempt to 
repair it.  Contact a quali

fi

 ed and authorized professional 

to perform any repair.  Any repair must be performed 
exclusively  by  the  manufacturer  or  by  an  authorized 
centre using only original parts. Non compliance with 
the above could compromise the safe operation of the 
machine.

In order to avoid dangerous overheating problems, it is 
recommended that the power supply cable be  unfurled 
completely.

Do not obstruct air intake and exhaust grilles and, in 
particular, do not cover the cup warmer tray with cloths 
or other items.

The machine’s power supply cable must not be replaced 

by  users.    In  case  the  power  supply  cable  becomes 

damaged,  shut  off  the  machine  and  disconnect  the 

machine from the electctrical network by unpluging the 

power cord or switching off the relative circuit breaker  and 

close off the water supply; to replace the power supply 

cord, contact quali

fi

 ed professionals exclusively.

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English

3

La Marzocco, S.r.l.        Firenze, Italia

General Information

Version 1.00

Summary of Contents for GS/3

Page 1: ...Version 1 00 HANDMADE IN FLORENCE GS 3 Owner s Manual...

Page 2: ...S 3 or to find others to share information about the GS 3 please visit our website at www lamarzocco com Here you will find a section dedicated to La Marzocco GS 3 users To gain access you will need t...

Page 3: ...www lamarzocco com Table of Contents General Information 3 Accessories 4 Machine Description 5 Installation 6 Operation 8 Key Features 9 Preventative Maintenance and Cleaning 10 La Marzocco History 1...

Page 4: ...d safety regulations being careful not to exceed the power and current ratings indicated on such adapters and extension cords This device must be used exclusively for the functions it has been designe...

Page 5: ...PER 1 UT005 HEX KEY 5mm 1 L037 2PGR DRAIN BOX HOSE BARB 1 L325 L326 STAINLESS STEEL BRAIDED HOSE 1 4G TO 5 16 24 UNF 1 L309 ARMORED DRAIN HOSE CLEAR 1 L312 HOSE CLAMP 2 L120 2A WASHER FLAT SEALING TYP...

Page 6: ...isplay Keypad Steam Wand Coffee Boiler Pressure Gauge Pressure gauge Steam Boiler Hot Water Steam Activation Lever Figure 2 Machine Description Main Power Switch Cup Tray Group Head Group Cover Englis...

Page 7: ...screw head It may be necessary to activate the brew process by pressing button 5 the continuous button to force the air out of the group Tighten the screw to stop the water from flowing Over tightenin...

Page 8: ...f it becomes necessary to change the pressure please use the following procedure 1 Remove the left side cover assembly 2 Locate the water pump adjustment screw and loosen the lock nut 3 Adjust the wat...

Page 9: ...the full on position only 1 2 3 Filter Basket Portafilter Handle Spout Figure 8 Portafilter The steam will transfer heat to the liquid raising its temperature Be careful not to allow liquid to overfl...

Page 10: ...dispensed from the Hot Water Wand on the right side of the machine This is accomplished by pressing the hot water button button 6 The amount of water dispensed can be programmed via the digital displ...

Page 11: ...through the group several times with the filters in place Make one cup of coffee and discard in order to remove any unpleasant flavor remaining from the cleaning process Cleaning the Drain Box Remove...

Page 12: ...drain and tip machine at an angle to point the valve into the waste drain Drain the coffee boiler loosen the expansion valve until water begins to flow freely Then remove the group cap cover and loos...

Page 13: ...GS 3 English 12 www lamarzocco com Preventative Maintenance and Cleaning Version 1 00...

Page 14: ...ty of obtaining the machinery and raw materials needed However such was the ingrained enthusiasm and entrepreneurial spirit that on 4th December 1945 a new patent was registered which was extended and...

Page 15: ...technicians new bilingual staff to facilitate relations with foreign markets and new staff specialised in research and development of the commercial sector All this helped us to Increase production i...

Page 16: ...La Marzocco S r l Via Bolognese 68 Pian di San Bartolo 50010 Firenze Italy Tel 39 055 401 390 Fax 39 055 401 349 Email info lamarzocco com www lamarzocco com HANDMADE IN FLORENCE...

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