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16 

 

3.6  Checking micro-switches and sensors 

 

N°

 

Description

 

Activated

 

Deactivated

 

Notes

 

1  

Geared motor micro-

switch WORK  

Distributor in WORK 

position  

Distributor not in 

WORK position  

 

2  

Geared motor micro-

switch HOME  

Distributor in HOME 

position  

Distributor not in 

HOME position  

 

3  

Front command strip 

micro-switch  

Command strip closed  

Command strip 

open  

 

5  

COFFEE GROUNDS TRAY 

micro-switch  

Tray present  

Tray absent  

 

6  

DISTRIBUTION GROUP 

micro-switch  

Present  

Absent  

 

7  

DOOR Micro-switch  

Door closed  

Door open  

 

8  

FLOW METER  

 

 

The technician 

can check the 
impulses  

9  

COFFEE GRINDER 

IMPULSES  

 

 

The technician 

can check the 
impulses  

0  

WATER LEVEL in the 

tank  

Level is OK  

Level is LOW  

 

A  

WATER ALARM micro-

switch  

Water detected in the 

bottom of the machine  

No water detected 

in the bottom of the 
machine.  

 

M   Coffee holder empty  

There is no coffee  

There should be 
coffee.  

This is derived 
and not 

hardware data.  

R  

CLOCK (shows seconds)   Even seconds  

Odd seconds  

It should flash at  

1 HZ  

K  

FRONT FACE PRESENT  

Present  

Absent  

 

0-8   COFFEE GRINDER 

SETTINGS 

 

 

Factory settings  

*  

COFFEE GRINDER 

SETTINGS SAVED  

Not saved  

Saved  

 

 

Содержание DED700X

Страница 1: ...facturer declines any responsibility or errors or omissions in this document No part of the product can be reproduced used or copied without prior express written consent or unless this is allowed by a contractual clause Coffe machine DE DIETRICH DED700X ...

Страница 2: ...page 17 to page 20 4 1 Cabling diagram 4 2 Hydraulics diagram 5 Operating logic Rev 00 from page 21 to page 26 5 1 Hydraulic operating diagram 5 2 The SBS system 5 3 Aqua Prima 5 4 Fitting and removing OETIKER clamps 6 Fitting and removing components Rev 00 from page 27 to page 41 6 1 Removing the upper panel and component support frame 6 2 Removing the coffee grinder 6 3 Removing the grinding whe...

Страница 3: ...3 REV 00 CHAPTER 1 INTRODUCTION ...

Страница 4: ...gital thermometer measuring range 200 C It should be usable for measuring liquids and surface temperatures 1 pair of Oetiker clamp pliers 1 cutting pliers 1 3 Safety Instructions It is recommended to read the machine s instruction notice before carrying out any maintenance Comply to current standards for repair of household appliances Before beginning repairs on the machine unplug it first Turning...

Страница 5: ...5 REV 00 CHAPTER 2 TECHNICAL INFORMATION ...

Страница 6: ...6 2 1 Internal components ...

Страница 7: ...5 W Safety relief valve Safety pressure relief valve with compensation valve Water filter Placed in the water tank Coffee grinder grinding wheel Threaded brass spindle ceramic grinding wheels Motor DC 230 V 120 V 100 V Absorption During temperature rise approx 4 8 A 230 V 9 A 120V 11 A 100V Absorption in energy saving mode stand by Approx 20 Watt h Main pump pressure 15 bar Dimensions LxWxH in mm ...

Страница 8: ...8 REV 00 CHAPTER 3 PROGRAMMING DIAGNOSTICS AND TESTS ...

Страница 9: ...s needed The REINITIALISE command should be used every time a new filter is fitted This function is used to make warmer or hotter coffee by setting water temperature high medium and low This function is used to set the dose of coffee quantity to grind when making an expresso strong regular weak This function is used to set the dose of coffee quantity to grind when making a coffee strong regular we...

Страница 10: ... mode to select the machine start and stop times Set the start and stop times Set the current time Set the start and stop times Set time display This function is used to carry out a washing cycle for parts used in coffee distribution This function is used to reset the default factory settings Warning custom settings are lost when resetting factory settings This function is used to quit the program...

Страница 11: ...of use on the temperature setting High value low influence do not modify the selected value 8 Normal temperature 90 C 70 130 C Normal temperature 9 High temperature 110 C 70 130 C High temperature 10 Temperature of the 1st coffee 117 C 70 130 C Temperature of the first coffee 11 Total grounds 0 0 50 Coffee grounds counter 12 Stop grounds 12 0 50 Limit beyond which the coffee grounds tray should be...

Страница 12: ...ode 128 Machine status indicator 26 Last maintenance day 1 31 Last maintenance date day 27 Last maintenance month 1 12 Last maintenance date month 28 Last maintenance Year 2000 2050 Last maintenance date year See table Phase code description BIT VALUE DESCRIPTION 0 1 Fill the machine not enough water 3 8 Start of coffee cycle The distribution group is full of coffee 5 32 Machine waiting 7 128 Il B...

Страница 13: ...eared motor and the descent of the coffee group Check the noise made by the geared motor When the geared motor is on standby the figure 2 should display on the top line Coffee grinder operation Key 3 Check the coffee grinder rotates anti clockwise Check the noise made by the coffee grinder keep pressing until the grinder stops automatically If the grinder motor is running a reference value for the...

Страница 14: ... s descent 3 Panel switch 5 Coffee ground tray and drip tray switch Detects the presence of the coffee grounds tray and the drip tray 6 Coffee group switch Detects the presence of the coffee group 7 Door switch Detects the correct shutting of the door 8 Turbine sensor Counts the turbine impulsions in order to define the quantity of water to be used when making the coffee 9 Coffee grinder sensor De...

Страница 15: ...nt Cut cables COFFEE GROUNDS TRAY MISSING Put the coffee grounds tray back Micro switch Cut cables GROUPE MISSING Put the group back Micro switch Group flange broken Cut cables NOT ENOUGH COFFEE Add coffee Replace PW Replace coffee griinder sensor DESCALE Descale Replace CPU GRINDER BLOCKED Replace the coffee grinder Replace PW FILL WATER TANK Jammed floater Replace water sensor Replace PW FLASHIN...

Страница 16: ...ch Present Absent 7 DOOR Micro switch Door closed Door open 8 FLOW METER The technician can check the impulses 9 COFFEE GRINDER IMPULSES The technician can check the impulses 0 WATER LEVEL in the tank Level is OK Level is LOW A WATER ALARM micro switch Water detected in the bottom of the machine No water detected in the bottom of the machine M Coffee holder empty There is no coffee There should be...

Страница 17: ...17 REV 00 CHAPTER 4 DIAGRAMS ...

Страница 18: ...18 4 1 Cabling diagram ...

Страница 19: ...V 230V DESCRIPTION PF1 02A 250V 01A 250V Coffee grinder safety PF2 16A 125V 08A 250V Coffee boiler grinder main circuit and pump safety PF3 16A 125V 08A 250V Steam boiler safety PF4 02A 250V 02A 250V Main circuit safety ...

Страница 20: ...20 4 2 Hydraulics diagram ...

Страница 21: ...21 REV 00 CHAPTER 5 OPERATING LOGIC ...

Страница 22: ... bar 6 Pressure safety valve Protects the circuit from over pressuring opens at 17 19 bars 7 Heat exchanger heater Heats for water coffee steam distribution 8 Temperature sensor Transmits current temperatures to the electronics 9 Overheating thermostat Switches off the machine in the event of overheating 10 Hot water steam tap When open supplies hot water or steam 11 Tube boiler For steam distribu...

Страница 23: ...ur while keeping the coffee smooth Function When the SBS valve is open coffee accumulates inside the membrane valve due to a weak counter pressure from the SBS valve The valve needle thus remains in its maximum open position due to the resistance of the spring The coffee flows quickly see figure 3 When the SBS valve is closed coffee accumulates on the valve membrane and increases the pressure insi...

Страница 24: ......

Страница 25: ...king correctly make a large coffee While the coffee is preparing check the difference in distribution speed between the maximum position and the minimum position The difference in speed is 2 5 times faster therefore the difference is VERY obvious LIGHT EXPRESSO SHORT ...

Страница 26: ...ion is inactive the electronics will count turbine impulses one impulse per revolution A graph showing this function is shown below DESCALING Hardness Water hardness Descaling frequency Descaling frequency when using Aqua Prima 1 Soft water jusqu à 7ºdH Approx 3 months 120 litres Approx 3 months 240 litres 2 Standard water 7º 14ºdH Approx 2 months 90 litres Approx 2 months 180 litres 3 Hard water ...

Страница 27: ......

Страница 28: ...p on the boiler BOILER The figure 1 shows where the clamp should be mounted on the boiler joint To tighten the clamp use the appropriate pliers Make sure it is sufficiently tight A and that it is in the right place 1 To remove the clamp proceed as illustrated B ...

Страница 29: ...29 REV 00 CHAPTER 6 FITTING AND REMOVING COMPONENTS ...

Страница 30: ...mponent support frame Remove the screws indicated Remove the upper panel as at the rear of the machine illustrated Cut the B clamp remove the A connector and the C terminal connectors Remove the indicated screws on the LEFT and RIGHT sides ...

Страница 31: ...31 Remove the screws shown on the front area and detach the steam pipe by removing the indicated clip Lift the component support frame Chassis Board ...

Страница 32: ...32 Remove the indicated screws Cut the clamp Remove the cabling and then the upper board by lifting it ...

Страница 33: ...emove the screws indicated by an arrow Note when refitting the coffee grinder do not forget the two 2 that go around the motor 3 Remove the coffee grinder When refitting the coffee grinder take care to correctly place the indicated joint ...

Страница 34: ... the upper grinding wheel Once freed the grinding wheel can be removed from its support To remove the upper grinding wheel A Unpack turn it anti clockwise as shown in the first picture using the B ring until the C tool is opposite the D aperture ...

Страница 35: ...eaner Turn the grinding wheel anti clockwise while levering it using a small flat screwdriver as shown in the first picture Once freed the lower grinding wheel can be removed from its support The upper and lower grinding wheels are made from ceramic and are completely identical Note to refit them proceed in the opposite order ...

Страница 36: ...grinder motor side plate Remove the sensor from the side plate by pressing on the anchor tab Remove the sensor from its casing in the side plate using a small screwdriver as shown above Disconnect the motor power cables Remove the rubber cap from the motor side plate ...

Страница 37: ... a size 10 and a size 7 spanner to unscrew the fixing nut Fit the new crown by placing it on the spindle gear and fix it by fitting the washer and fixing nut Block the nut on the brass spindle axis using the size 7 and 10 spanners Grease the entire crown ...

Страница 38: ...on the entire surface of the cog wheel Apply grease to the teeth of the endless screw on the grinder motor shaft Fit the motor side plate as illustrated Fit the fixing pins as illustrated and push them right into their housing ...

Страница 39: ...iler Remove screw A and the two B clamps remove the two silicone meshed pipes Remove the resistance protection cover C and disconnect the two D connectors To remove the steam boiler cut the two clamps and disconnect the two silicone pipes ...

Страница 40: ...crew as shown Remove the small cover and the indicated screws to free the boiler pivot To remove the coffee boiler remove the three screws as shown above Disconnect the connector shown by the arrow Remove the boiler from its casing ...

Страница 41: ...o the boiler by removing the clamp This picture shows the coffee boiler once removed from the casing To replace the thermostats remove the indicated screw this can also be done while the boiler is still in its casing To remove the boiler from its base unscrew the indicated screw A ...

Страница 42: ...ric motor A with the transmission and synchronisation gears B and C for the distribution group the coffee grounds tray micro switch D the distribution group micro switch E the distribution group standby detection micro switch F the distribution group distribution detection micro switch G Remove the gear C that is coupled to the shaft of the small motor Remove the larger gear B Pull out the small m...

Страница 43: ...e opening that contains the pivot P Fit the gear that couples with the transmission shaft Refit the protection cover C and replace the screws Refit the boiler pivot B while making sure that the two joints G are present on the beak that fits in the pipe hole D Replace the boiler pivot screws Warning before tightening the screws they must both be fully screwed ...

Страница 44: ...44 REV 00 CHAPTER 7 EXPLODED VIEWS ...

Страница 45: ...45 7 1 Exploded view ...

Страница 46: ...46 ...

Страница 47: ...47 Esp E90046 ...

Страница 48: ...or water valve 3 3 5 20 229434700 Teflon pipe 3 3 5 21 224640200 Filter set 5 3 5 24 147923762 Adapter 3 3 5 26 140324362 OR metric 0060 30 10 3 5 27 147660562 Small valve piston 5 3 5 28 145856562 Water valve adapter 10 3 5 29 126764718 Cylinder spring 5 3 5 37 186053700 Switch 3 3 5 42 11006792 CPU connecting board set 3 3 5 43 12000440 PUSH PUSH key 5 3 5 44 145898750 Male part 5 3 5 47 1100954...

Страница 49: ...t 3 4 5 56 11001522 NTC temperature sensor 3 4 5 57 11006731 230V boiler set 3 5 5 04 146520100 48x28 ceramic grinding wheel 3 5 5 14 11004354 Coffee grinder set 3 5 5 42 NE05 038 Micro switch 5 5 5 43 9121 042 Z 108 gear 3 5 5 44 9121 042 Z 12 90 gear 3 5 5 51 11003037 Motor set for geared motor 3 5 5 53 186724200 Micro switch 3 5 5 56 11003426 Coffee group 3 ...

Страница 50: ...50 REV 00 CHAPTER 8 PROBLEMS CAUSES SOLUTIONS ...

Страница 51: ... setting The SBS system button is completely to the left Turn the button to the right when the machine serves coffee The machine takes to long to heat up and the quantity of water distributed through the nozzle is limited There is scale in the machine circuit Carry out a de scaling cycle The distribution group cannot be removed The distribution group is not in the right position Turn on the machin...

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