WMF Presto Manuel utilisateur

coffee wakes up the world

Service Manual

English

Coffee Machine

Series 1400 Edition 08.2014

WMF presto Service manual edition 08/2014

1 Initial operation

2 Software service info

2.1 Software Service-Info overview 5

2.2 Service 5

2.3 Maintenance 5

2.4 Brew time 5

2.5 Protocol 5

2.6 Timer 5

2.7 Accounting 5

2.8 Milk temperature 5

3 Software machine data

3.1 Machine data overview 6

3.2 Submenu counter 6

3.3 Submenu Service date 6

3.4 Temperature submenu 8

3.5 Submenu cleaning 8

3.6 Submenu error list 8

3.7 Submenu portioner 9

3.8 Submenu milk 9

3.9 Submenu access control 9

Maintenance messages in Key Operator mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.10 Submenu standards factoryservice/customer 10

Factoryservice/customer menu 1

Factoryservice/customer menu 2

Factoryservice/customer menu 3

Factoryservice/customer menu 4

Factoryservice/customer menu 5

Factoryservice/customer menu 6

4 Software components test

4.1 Component tests overview 13

4.2 Submenu brewer motor 13

4.3 Submenu portioner 13

4.4 Valves 14

4.5 SBHWB group (steam boiler and hot water boiler) 14

4.6 Control elements 14

4.7 Manual insert 14

4.8 Current supply 15

4.9 Oscillation pump 15

4.10 Backup battery 15

4.11 Display illumination 15

4.12 Grounds container 15

4.13 Water tank 15

4.14 Fan 15

4.15 Power status 15

4.16 Choc dispenser 16

4.17 Topping 16

Table of contents

WMF presto Service manual edition 08/2014

5 Software service routines

5.1 Service routines overview 17

5.2 First Run up 17

5.3 Idling current grinder 18

5.4 Filling the boiler (replacing hot water boiler) 18

5.5 Filling the steam boiler (replacing steam boiler) 18

5.6 Exchanging control battery at F 157 19

5.7 Check pressure reducer 19

5.8 Depressurization 19

5.9 Descaling 19

5.10 Filter replacement 19

6. Beverage data

6.1 Beverage data overview 20

Overview of beverage data main menu

e.g. cappuccino ........................................................20

Overview of beverage data main menu

e.g. hot water ..........................................................20

6.2 Additional laptop setting options (KonﬁgTool) 20

7 Error messages and events

7.1 Display messages 21

7.2 Error list 22

8 Mechanical settings

8.1 Grinder setting (coarse - ﬁne) 26

8.2 Setting pressure reducer 27

9 Milk nozzles

10 Maintenance concepts 15.000 brewings

10.1 Overview maintenance sets 30

Table of contents

WMF presto Service manual edition 08/2014

WMF presto Service Manual

1 Initial operation

During the initial operation the steam boiler respectively

the hot water boiler is ﬁlled automatically according to the

procedure described as follows.

Machines with steam boiler and hot water boiler:

The steam boiler is ﬁlled from the hot water boiler via the

steam boiler supply valve. The steam boiler supply valve is

opened until the steam boiler electrode is contacted. Then

the machine is heated up.

Machines with only hot water boiler:

As the level of these machines can not be detected, the

hot water boiler is ﬁlled for 300 s. The waste water is led

into the drip tray via the release valve. If the ﬁrst ﬁlling

up is interrupted, it will be restarted by switching ON the

machine.

Condition:

Machine is reset to customer setup and connected to the

power supply.

Run display-guided setup.

The following settings are made:

• Language

• Descaling ﬁlter yes/no

• Descaling ﬁlter range

• Descaling ﬁlter replacement mode

(customer or service)

Update software to current status

(only possible with laptop program “KonﬁgTool”)

Set beverages according to customer speciﬁcations

(Customer setting  recipes/buttons or by „KonﬁgTool“

 beverage conﬁguration)

Enter service point

(only possible with “KonﬁgTool”).

Save data  Defaults  CustomerService

Backup machine data on laptop

Before regular operation:

rinse the pipes, dispense three cups of hot water

perform the cleaning cycle

After setup, the service technician must note the

following statement in the assembly invoice:

“At the end of operation, machine has to be turned off at

source. The user manual and accessories were given to the

customer.”

The customer must acknowledge this with his signature.

Additional settings for recipes

after the service PIN is entered

WMF presto Service manual edition 08/2014

WMF presto Service Manual

2 Software service info

2.1 Software Service-Info overview

2.2 Service

• Contact address

• Date of next customer check-up

• Setup start date

• Software version

• Bootmanager version

• Machine number

2.3 Maintenance

• Last 100 cleaning operations with date and time  care

report

• Info Cleaning (last cleaning)

• Info Descaling (liter until descaling)

• Info Water ﬁlter (liter until ﬁlter change)

2.4 Brew time

• last brewing

2.5 Protocol

• Error list

2.6 Timer

• Timer settings

2.7 Accounting

• Info Vending device

• Software version

• Operating state

2.8 Milk temperature

• hourly recorded milk temperature

WMF presto Service manual edition 08/2014

WMF presto Service Manual

3 Software machine data

3.1 Machine data overview

3.2 Submenu counter

These displays are only for your information.

We recommend, in order to keep the information, only to reset the counters below

mentioned if the components have really been exchanged!

3.3 Submenu Service date

With click on „OK“, the actual date will be entered as the last visit.

With click on „OK“ the error list and FIFO will be erased.

On these three displays all possible service actions are listed. They can be looked at and

can be reset if carried out.

Machine data

WMF presto Service manual edition 08/2014

WMF presto Service Manual

Brewings since last customer check-up /Brewings to Customer check-up

Date of next Customer check-up (MM.JJJJ).

The customer check-up can be reset only here.

Service Maintenance and Revision:

Along the lines of customer check-up, the service dates,

service maintenance and revision are composed. Revision is

only requested after some time (every 6 years).

Softener exchange:

After conﬁrming with „Yes“ the water ﬁlter will be rinsed.

Rinse ﬁlter:

Brewer:

Counter brewer gasket: will be reset by customer care

Counter brewer: will be reset by service maintenance

Counter brewer drive: no service message

Mixer:

Every 6000 servings, the mixer reports a service message.

The counter of the mixer can be looked at and reset.

WMF presto Service manual edition 08/2014

WMF presto Service Manual

Maintenance after 6,000 portionings mixer

Parts to be replaced:

• the mixer unit

• the mixer valve

Portioner (example right grinder):

Only grinder disk counter (no service message)

Only drive counter (no service message)

3.4 Temperature submenu

Setting range 80 to 100°C, default 96° C

Setting range 110 to 130° C, default 127° C

Changing the steam boiler temperature leads to great

changes in the dosage of milk and milk foam. Changes are

not recommended.

3.5 Submenu cleaning

Number of cleanings performed and to be performed

Number of mixer rinsings performed

Number of milk system cleanings performed

Time until request for cleaning/forced cleaning

Hardware for foamer rinsing available?

Delay in foamer rinsing after last beverage dispensing

Switch warning signal before foamer rinsing on/off

3.6 Submenu error list

Delete individual errors: tap on the line

Delete complete error memory: tap C

Malfunction and events list see

chapter Error list

WMF presto Service manual edition 08/2014

WMF presto Service Manual

3.7 Submenu portioner

Example right grinder

Idling current (determined via service routine)

Maximum dosage amount in 1/10 seconds

Only the maximum dosage amount can be set for the

powder portioner (default 150). A detection of the idling

current is not possible.

3.8 Submenu milk

Yes: temperature sensor of cooler activated

empty message via sensor

cooler next to or below

air pump delay settable

3.9 Submenu access control

The settings correspond to the default of the previous

standard setting. However, they can now be changed /

assigned independently of each other.

if „yes“ is activated: access to key operator is activated.

if „yes“ is activated: customer check-up can be performed.

if „yes“ is activated: water ﬁlter can be exchanged and rinsed.

If activated („yes“), the key operator is able to

• do the descaling (turbo descaling)

• carry out and reset the customer check-up

• exchange and rinse the scale ﬁlter

• access the component test

• access the service routines

• access the counters

Maintenance messages in Key Operator mode

Customer check-up

Maintenance after 1 year or 15,000 brewings

Tasks to be performed analogy to customer check-up

Reset with C on display see

machine data  service date

 Customer check-up

or Menu Care  Maintenance

WMF presto Service manual edition 08/2014

WMF presto Service Manual

3.10 Submenu standards factoryservice/

customer

After tapping “self-detect” is ﬁrst run automatically. All

components operating on 24 V or 30 V are automatically

addressed. The components are automatically identiﬁed.

During self-detect the grounds container must be in

place, the adjustable screen closed or the 24/30 V circuits

of the components are interrupted.

Factoryservice/customer menu 1

Conﬁguration of grinders

Conﬁguration of powder portioner

Heating capacity

Conﬁguration of grinders is registered automatically (see

chapter portioner).

Conﬁguration of powder portioner is registered

automatically (see chapter portioner).

Heating capacity can be changed as required.

Factoryservice/customer menu 2

Steam boiler existent

Steam dispensing valve existent

Fresh milk valve (cappuccino valve) existent

Steam boiler is registered automatically by its intake valve

(See chapter boiler water system).

Steam dispensing valve is automatically detected

(See chapter boiler water system).

Milk is automatically detected

(See chapter boiler water system).

Factoryservice/customer menu 3

Self-Service mode activated?

Water tank / water infeed

Drain drip tray existent? (changes cleaning and descaling )

Self-Service mode

The default settings can be adjusted individually in the

operating options.

See chapter engineering, portioner

in the training manual

See chapter Boiler water systems

in the training manual

Part 2 Engineering

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