Philips Saeco Gaggia Unica RI 9933 Service Manual
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Philips Saeco Gaggia Unica RI 9933 Service Manual

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Co ee Machine
Service
Service Manual

Table of contents

1.
1.1.
1.2.
1.3.
1.4.
1.5
1.6.1.
1.6.2.
2.
2.1.
Technical specifi cations
2.2
products temperature.
2.3.
3.
3.1.
3.2.
3.3.
4.
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
All parts of this document are the property of Saeco International Group.
All rights reserved. This document and all the information herein is provided without liability deriving from any errors or omissions. Furthermore, no part may be reproduced,
used or collected, except where express authorisation has been provided in writing or through a contractual agreement.
Published by Saeco International Group
2011-June-08
Revision 01 December 2012
Page
Table of contents
4.7.
1
4.8.
1
4.9.
1
4.10.
1
4.11.
2
3
5.
4
5.1.
5.2.
1
6.
2
6.1.
6.2.
3
6.3.
7.
1
7.1.
2
7.2.
3
7.3.
7.4.
7.5.
1
7.6
2
7.7
3
7.8
3
7.9
4
4
Subject to modifi cation
Gaggia Unica
Caldaia
RI 9933
Page
5
6
6
7
7
1
3
1
1
2
1
1
2
3
4
4
4
4
5
EN 4219 400 00012

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Summary of Contents for Philips Saeco Gaggia Unica RI 9933

  • Page 1: Table Of Contents

    Co ee Machine RI 9933 Gaggia Unica Service Service Manual Revision 01 December 2012 Table of contents Page Table of contents Page Introduction 4.7. Dose self-learning (SAS) 1.1. Documentation required 4.8. Water level detection (water tank) 1.2. Tools and equipment required 4.9.
  • Page 2 Table of contents Page 7.10. Cock card and hot water/steam cock 7.11. Dispenser assembly 7.12. CPU and display card 7.13. Fitting and removing Oetiker clamps Notes Water circuit diagram Electrical diagram Saeco International Group Rev. 01 GAGGIA UNICA...
  • Page 3 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 4: Introduction

    GAGGIA UNICA 01 INTRODUCTION Documentation required The following documentation is needed for repair procedures: • Instruction booklet for specifi c model • Technical documentation for specifi c model (diagrams, exploded drawings) Tools and equipment required As well as the standard equipment, the following is required: Qty.

  • Page 5: Service Policy

    GAGGIA UNICA 01 INTRODUCTION Service POLICY grid as used for coffee machine For IN WARRANTY repairs is mandatory to use the single components (not the assembly) avai- lable in the exploded views of the coffee machines or of the specifi c components. If you fi nd the information “SEE THE EXPLODED VIEW E..”...

  • Page 6: External Machine Parts

    GAGGIA UNICA 01 INTRODUCTION 1.6.1 External machine parts Coffee bean hopper with lid Grinding adjustment Service hatch Hot water/steam dispensing pipe Dispensing pipe protection Brewing unit Drip Dreg drawer tray+grille Control panel Hot water/steam dispensing knob Coffee Power supply socket dispenser Water tank LED display...

  • Page 7: Internal Machine Parts

    GAGGIA UNICA 01 INTRODUCTION 1.6.2 Internal machine parts Safety valve Grinding Coffee grinder adjustment insert Turbine Power cable connector Pump Steam pipe Power card Hot water/steam valve Hot water /steam cock card Thermostats Boiler Saeco International Group Rev. 01 Page / 04...
  • Page 8 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 9: Technical Specifi Cations

    GAGGIA UNICA 02 TECHNICAL SPECIFICATIONS 2.1. Technical specifi cations Power supply and output: 240 V~ 50 Hz 1400 W - 230 V~ 50/60 Hz 1400 W - 120 V~ 60 Hz 1500 W - 100 V~ 50/60 Hz 1300 W Temperature monitoring: (NTC) variable resistor sensor - transmits the value to the electronic card...

  • Page 10: Specifi Cation For The Measurement Of The Coffee

    GAGGIA UNICA 02 TECHNICAL SPECIFICATIONS 2.2. Specifi cation for the measurement of the coffee products temperature. The temperature is infl uenced by the fl ow from the dispenser and stratifi cation of temperatures in the glass. In order to consider these phenomena and to introduce measures that allow compari- sons in controlled conditions, below guidelines must be followed: Conditions: a) Water temperature in tank: 23°C (+/-2°C).

  • Page 11: Machine Parameters And Performance

    GAGGIA UNICA 02 TECHNICAL SPECIFICATIONS 2.3. Machine parameters and performance Minimum Default Maximum PRODUCT User Programm. by quantity quantity quantity QUANTITY programmable Production / Service (Puls.) (Puls.) (Puls.) Espresso 130 - 170 Long coffee 200 - 230 Pre-ground Hot water Continues for 400 pulses Steam for Continues until the water supply has been exhausted (capacitive sensor)
  • Page 12 GAGGIA UNICA 02 TECHNICAL SPECIFICATIONS DREG DRAWER Description and values 5 sec. Time-out for dreg drawer Yes, after 14 lots of dregs Warning to empty dreg drawer after The dreg drawer must be emptied only when prompted by the machine ensuring Reset dreg counter the machine is switched on and removing the drawer for more than 5 seconds.
  • Page 13 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 14: User Instructions

    GAGGIA UNICA 03 USER INSTRUCTIONS 3.1. Customer and programming menu Espresso dispensing button ON/OFF button Long coffee dispensing button Lo Lo of offe fe di di si si b but utto to Steam selection button Machine ready signals Machine ready for dispensing Machine dispensing steam coffee with coffee beans and hot water...

  • Page 15: Machine Indications

    GAGGIA UNICA 03 USER INSTRUCTIONS 3.2. Machine indications Alarm signals Turn the hot water/steam valve - The Brewing unit must be inserted knob to the correct position in the machine. - Close the service door Lampeggiante BLINKING STEADY Fisso Switch off the machine and - Empty the dregs drawer carefully clean the dispensing - Empty the tray under the unit...

  • Page 16: Operation, Cleaning And Maintenance

    GAGGIA UNICA 03 USER INSTRUCTIONS 3.3. Operation, cleaning and maintenance Operating the machine Fill water tank Fill the coffee bean hopper Switch on the appliance Press the key to switch the machine on Heating When the heating phase begins, wait for it to fi nish Rinse Carry out a rinse cycle for the internal circuits Machine ready...
  • Page 17 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 18: Operating Logic

    GAGGIA UNICA 04 OPERATING LOGIC 4.1. Water circuit Saeco International Group Rev. 01 Page / 07...

  • Page 19: Coffee Cycle

    GAGGIA UNICA 04 OPERATING LOGIC 4.2. Coffee cycle Main switch ON START STOP Time Coffee grinder Pulses (Dosage) Heating approx. 45 sec. Pump operation Pump (turbine pulses) in accordance with the amount of product selected Brewing unit gear motor Status Heating Ready Coffee cycle...

  • Page 20: Single Microswitch

    GAGGIA UNICA 04 OPERATING LOGIC 4.3. Single microswitch The gearmotor is powered by a direct current motor that engages with the smaller double toothed wheel using a worm screw. The unit is mounted on the axle of the large gear wheel and when a coffee is requested, it moves from the standby position to the dispensing position, and then back to the standby position again.

  • Page 21: Coffee Grinder

    GAGGIA UNICA 04 OPERATING LOGIC 4.5. Coffee grinder The coffee grinder is driven by a direct current motor (1) using a worm screw helicoidal wheel transmission (2). The worm screw (2) drives a plastic gear wheel (3), which turns the lower grinder (4) and the increment pin (5) There are two magnets (6) in the gear wheel;...

  • Page 22: Dose Self-Learning (Sas)

    GAGGIA UNICA 04 OPERATING LOGIC 4.7. Dose self-learning (SAS) The aim of this function is to automatically regulate the average dose of ground coffee (SELF- LEARNING); this takes place with an algorithm based on three pieces of data that the machine receives via the card: 1.

  • Page 23: Water Level Detection (Water Tank)

    GAGGIA UNICA 04 OPERATING LOGIC 4.8. Water level detection (water tank) “Water low” message (water reserve) Function: Water tank The water level is monitored by a capacitative sensor, located one third of the way up the water tank wall. If the electronics assembly detects, by means of the sensor, that the amount of water in the tank has dropped below the Sensor above mentioned level, a water reserve remains available for the...

  • Page 24: Descaling Request

    GAGGIA UNICA 04 OPERATING LOGIC 4.10. Descaling request Flow meter pulses “Descaling” – message with water fi lter inserted (appliances with display only) The water hardness is set on the basis of the regional water hardness analysis Filter (1, 2, 3, 4). Filter off: If the function is turned off the electronics assembly monitors the turbine pulses, recording...
  • Page 25 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 26: Troubleshooting

    GAGGIA UNICA 05 TROUBLESHOOTING 5.1. Test mode To enter Test Mode 1) turn the hot water/steam knob to the ON position 2) switch on the machine by plugging it in end push the espresso coffee button (3) 4) the icons will blink cyclically release the espresso coffee button and turn the hot water/steam knob back into the OFF position...
  • Page 27 GAGGIA UNICA 05 TROUBLESHOOTING Brewing unit functional test (level 03) Press to take the brewing unit on to Work The brewing unit goes into the Work position and the LED lights up Initial LED status symbol turns on if strain is excessive. at level 3 Check operation of the gearmotor and STEADY...

  • Page 28: Error Messages

    GAGGIA UNICA 05 TROUBLESHOOTING Functional check on coffee grinder and boiler (level 05) Press to activate the coffee grinder The brewing unit is activated and the symbol starts blinking. If this does not occur and the symbol turns on, check the sensor Initial LED status and/or the coffee grinder motor, the wiring of at level 5...
  • Page 29 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 30: Standard Checks

    GAGGIA UNICA 06 STANDARD CHECKS 6.1. Repair schedule Action Visual inspection (transport damage) Machine data check (rating plate) Operational check / problem analysis Opening machine Visual inspection Operational tests Repairing the faults encountered Checking any modifi cations (view info, new sw, etc.) Service activities in accordance with the operating schedule 10 Internal cleaning 11 Operational test while the appliance is open...

  • Page 31: Final Test

    GAGGIA UNICA 06 STANDARD CHECKS 6.3. Final test Test Procedure Support/tool Standard Tolerance 2-3 Espressos for Measuring Espresso Same amount adjustment purposes scoop 2-3 Coffees for Measuring Coffee Same amount adjustment purposes scoop Noise Standard The cream should Amount of Blow into the cup until come together cream...
  • Page 32 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 33: Disassembly

    GAGGIA UNICA 07 DISASSEMBLY 7.1. Outer elements Remove the water tank, coffee container cover, water recovery tray, dregs drawer, brewing unit, hot water/ steam knob. Unscrew the marked Firmly raise the top Unhook the front panel, raising it and extract screws and remove the cover the electric connections...

  • Page 34: Grinder Blades

    GAGGIA UNICA 07 DISASSEMBLY 7.3. Grinder blades To extract the top support of the appliance, press on the grinding adjustment spindle (A) and turn the support anticlockwise until it unhooks. Turn the grinder blades anticlockwise out of the support. Turn the grinder blades clockwise out of the support. The bayonet connections can be accessed from the rear.

  • Page 35: Coffee Grinder Adjustment

    GAGGIA UNICA 07 DISASSEMBLY 7.4. Coffee grinder adjustment The grinding adjustment can be set by the user (only with the coffee grinder in operation) by pressing and turning (only by one click at a time) the insert inside the coffee bean hopper with the aid of the wrench supplied.

  • Page 36: Pump

    GAGGIA UNICA 07 DISASSEMBLY 7.5. Pump Slide out the two pump supports (highlighted) fi xed to the housing, unhook the safety valve outlet and disconnect the electrical and water circuit connections 7.6. Turbine Lift the turbine out of the casing assembly and remove the electrical and water circuit connections 7.7.

  • Page 37: Gearmotor

    GAGGIA UNICA 07 DISASSEMBLY 7.9. Gearmotor Loosen the screws as illustrated and remove the boiler pin. Loosen the screws as illustrated and remove the gearmotor cover. The following are located inside the compartment protected by the casing: - Electric motor (A) with gears (B) and (C) for transmission and timing of the dispensing unit.

  • Page 38: Cock Card And Hot Water/Steam Cock

    GAGGIA UNICA 07 DISASSEMBLY 7.10. Cock card and hot water/steam cock Unscrew the marked screws and extract the hydraulic Loosen the screw as illustrated to remove the cock card connections to remove the hot water/steam cock 7.11. Dispenser assembly Press, extract the front cover of the dispenser and remove the movable part 7.12.

  • Page 39: Fitting And Removing Oetiker Clamps

    GAGGIA UNICA 07 DISASSEMBLY 7.13. Fitting and removing Oetiker clamps 1) Boiler connection 2) Other connections Use a suitable pair of pliers to remove the Tighten the clamp as illustrated clamp (as illustrated) Saeco International Group Rev. 01 Page / 07...
  • Page 40 Saeco International Group Rev. 01 GAGGIA UNICA...

  • Page 41: Notes

    GAGGIA UNICA 08 NOTES Saeco International Group Rev. 01 Page / 01...
  • Page 42 Saeco International Group Rev. 01 GAGGIA UNICA...
  • Page 43 GAGGIA UNICA 09 HYDRAULIC DIAGRAM Saeco International Group Rev. 01 Page / 01...
  • Page 44 Saeco International Group Rev. 01 GAGGIA UNICA...
  • Page 45 GAGGIA UNICA 10 WIRING DIAGRAM Saeco International Group Rev. 01 Page / 01...

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