Smeg CWC621D-1 User manual [GB]

CONTENTS

1 PRECAUTIONS FOR SAFETY AND USE ........................................................................... 3

2 TECHNICAL DATA ......................................................................................................... 4

3 INSTALLATION AND POSITIONING................................................................................ 5

4 INSTRUCTIONS FOR TECHNICAL STAFF ......................................................................... 7

4.1 Plumbing hookup ................................................................................................... 7

4.2 Electrical connection .............................................................................................. 8

5 FIRST START-UP............................................................................................................ 9

6 SET-UP ....................................................................................................................... 10

6.1 Dishwasher parameter modification procedure: ................................................. 10

6.2 Quit “ SET-UP “ menu ........................................................................................ 13

6.3 Rinsing temperature setup .................................................................................. 13

6.4 Washing temperature setup ................................................................................ 13

6.5 Rinse aid dispensing setup ................................................................................... 13

6.6 Adjusting detergent dispensing (optional if installed) .......................................... 14

6.7 Autostart function ............................................................................................... 14

6.8 Regeneration frequency setup (models with softener) ........................................ 15

6.9 tStP (minimum rinsing temperature) function ..................................................... 15

6.10 Rinse aid pump (display and if required reset during maintenance) ................. 16

6.11 Detergent pump (display and if required reset during maintenance) ............... 16

6.12 Energy consumption – Display and reset if required ......................................... 16

6.13 Customisation of duration of program P4. ........................................................ 16

6.14 Steam extraction time setting (optional if installed) ......................................... 17

6.15 Service setting (for After-Sales Service only) ..................................................... 17

6.16 Starting the peristaltic pumps – rapid filling of detergent and rinse aid delivery

circuit. 17

7 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE TECHNICIAN) ........................... 18

8 INSTRUCTIONS FOR THE USER ................................................................................... 20

8.1 Control panel ....................................................................................................... 20

8.2 Before washing .................................................................................................... 21

8.3 First use each day (tank and boiler empty) .......................................................... 21

8.4 Changing the Program ......................................................................................... 23

9 CHOOSING THE PROGRAM ........................................................................................ 24

10 SUPPLEMENTARY FUNCTIONS ................................................................................ 24

10.1 Selecting the crys “glassware” function (available in P1-P2) ............................. 24

10.2 Selecting the “extra rinse” function (available in P1-P2-P3-P4) ......................... 25

11 MAINTENANCE AND CLEANING .............................................................................. 26

11.1 Daily cleaning .................................................................................................... 26

11.2 Routine inspection of the spray arms ............................................................... 27

11.3 Lengthy periods out of use ............................................................................... 28

12 TROUBLESHOOTING ................................................................................................ 28

13 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE USER) ................................... 30

SMEG Thanks you for choosing one of its products.

Read all the instructions in this manual carefully to become familiar with the right conditions for the

proper use of your dishwasher.

TECHNICAL INSTRUCTIONS

These are intended for the qualified staff who are to install, commission and test
the appliance and carry out any servicing and repairs.

INSTRUCTIONS FOR THE USER

These provide recommendations for use, a description of the controls and the
correct procedures for cleaning and maintaining the dishwasher.

2

1 PRECAUTIONS FOR SAFETY AND USE

THIS MANUAL IS AN INTEGRAL PART OF THE DISHWASHER AND MUST ALWAYS BE

KEPT INTACT TOGETHER WITH THE APPLIANCE.

POSITIONING, HOOKUP, COMMISSIONING, TROUBLESHOOTING AND REPLACING THE

POWER CABLE MUST ALWAYS BE CARRIED OUT BY QUALIFIED STAFF.

THE APPLIANCE MUST BE GROUNDED AS REQUIRED BY ELECTRICAL EQUIPMENT

SAFETY STANDARDS.

THE DISHWASHER IS INTENDED FOR PROFESSIONAL USE ONLY AND MUST ONLY BE USED BY
AUTHORISED STAFF. IT IS DESIGNED TO WASH TABLEWARE (PLATES, CUPS, BOWLS, OVEN DISHES AND
CUTLERY) AND SIMILAR ITEMS IN THE RESTAURANT AND INSTITUTIONAL CATERING SECTOR, AND
COMPLIES WITH THE INTERNATIONAL STANDARDS ON ELECTRICAL AND MECHANICAL SAFETY (CEI-EN-
IEC 60335-2-58/61770) AND ELECTROMAGNETIC COMPATIBILITY
(CEI-IEC-EN 55014-1/-2, 61000-3;4, 50366).
THE MANUFACTURER DECLINES ALL RESPONSIBILITY FOR INJURY OR DAMAGE CAUSED BY FAILURE
TO COMPLY WITH THE INSTRUCTIONS IN THE MANUAL, BY INCORRECT USE, BY TAMPERING WITH
EVEN JUST ONE PART OF THE APPLIANCE AND BY THE USE OF NON-ORIGINAL SPARE PARTS .
THIS APPLIANCE IS TAGGED UNDER EUROPEAN DIRECTIVE 2002/96/EC ON WASTE ELECTRICAL AND
ELECTRONIC EQUIPMENT (WEE).
BY MAKING SURE THAT THIS PRODUCT IS DISPOSED OF CORRECTLY THE USER HELPS TO PREVENT

POTENTIAL DETRIMENTAL EFFECTS ON HEALTH AND THE ENVIRONMENT. WHEN DECOMMISSIONING
THE APPLIANCE COMPLY WITH THE LOCAL WASTE DISPOSAL REGULATIONS.FOR FURTHER
INFORMATION ON THE TREATMENT, RECOVERY AND RECYCLING OF THIS PRODUCT, CONTACT THE
COMPETENT LOCAL OFFICE, THE DOMESTIC WASTE COLLECTION SERVICE, OR THE SHOP WHERE THE
PRODUCT WAS PURCHASED.

3

THE SYMBOL OF THE RUBBISH BIN WITH A BAR ACROSS IT ON THE PRODUCT OR IN THE
TECHNICAL DOCUMENTATION INDICATES THAT THIS PRODUCT MUST NOT BE TREATED
AS ORDINARY DOMESTIC WASTE BUT MUST BE CONSIGNED TO THE SPECIAL COLLECTION
POINT FOR THE RECYCLING OF ELECTRICAL AND ELECTRONIC EQUIPMENT.

NEVER PLACE SOLVENTS SUCH AS ALCOHOL OR TURPENTINE, WHICH MIGHT CAUSE AN
EXPLOSION, INSIDE THE APPLIANCE. NEVER LOAD DISHES DIRTY WITH ASH, WAX OR
PAINTS.

DO NOT DRINK ANY WATER LEFT IN THE DISHES OR DISHWASHER AT THE END OF THE
WASHING PROGRAM.

THE APPLIANCE IS NOT SUITABLE FOR USE BY JUVENILES OR PERSONS WITH REDUCED
PHYSICAL, SENSORIAL OR MENTAL CAPACITIES, OR THOSE WITHOUT THE NECESSARY

KNOWLEDGE AND EXPERIENCE. SUCH PERSONS MAY ONLY USE THE APPLIANCE UNDER
THE SUPERVISION OF A PERSON RESPONSIBLE FOR THEIR SAFETY.

2 TECHNICAL DATA

Water intake pressure kPa (bar) 100-600 (1 ÷ 6)

Water intake temperature °C 15°C – 60°C

Water intake hardness °f < 15°f

Rinse cycle water consumption l 3.2

Boiler capacity l 8

Tank capacity l 22

Durée cycle standard avec alimentation d’eau à 50°C s 60/90/150/variable

Degree of protection IPX 5

Net weight kg 120/149

Fuse A 4

Power supply cable type

◄HAR►

Supply voltage V 400V 3N ~

Frequency Hz 50

H07RN-F

VOLTAGE

400V-50Hz/3/N/PE 10A
230V-50Hz/1/N/PE 40A

FUSE

PROTECTION

TANK

HEATING

1.8kW 1kW 9Kw

1.8kW 1kW 6kW

MOTOR BOILER

TOTAL

CONNECTION

LOAD

10kW 5X4

7kW 3X6

POWER

CABLE

4

3 INSTALLATION AND POSITIONING

INSTALLATION and POSITIONING

Bring the hood dishwasher to the installation site, remove the packaging and check the appliance and
components for damage; any damage found must be reported to the transporter in writing.

The packaging components (plastic bags, expanded polystyrene, nails, etc.) must not be left within reach
of children and pets since they are potentially dangerous. All packaging materials used are environment­friendly. They can be kept without constituting any hazard, or may be disposed of at a specialist waste
disposal centre. The plastic components suitable for recycling are marked as follows: PE polyethylene:
external packaging film, bag containing the instructions, protective bags. PP polypropylene: straps. PS
expanded polystyrene: corner guards, top of packaging. Wooden and cardboard components can be
disposed of in accordance with the relevant regulations. When the product is decommissioned it must
not be dumped in the environment; it must be disposed of in accordance with the relevant regulations.
All metal parts are in stainless steel and can be removed. The plastic parts are marked with the symbol
identifying the material used and must be disposed of in accordance with the relevant regulations When
the product is decommissioned it must not be dumped in the environment; it must be disposed of in
accordance with the relevant regulations.

POSITIONING:

Caution: the indoor system and premises in which equipment for institutions is installed

must comply with the relevant regulations.

The manufacturer declines all liability for direct or indirect injury or damage deriving from failure to
comply with these regulations.
Before installation, check that there are no objects or materials in the vicinity which may be
damaged by steam or splashes of washing solution, or that any such items are suitably protected.
Place the dishwasher in the chosen point and remove the protective film.
Level the dishwasher (with the aid of a spirit level) on its adjustable feet to ensure that it is stable;
all other mounting solutions must be approved by the manufacturer.

5

C SOLENOID VALVE
Q EARTH TERMINAL
E ELECTRICITY SUPPLY CABLE
P PERISTALTIC HOSES
S DRAIN HOSE

6

4 INSTRUCTIONS FOR TECHNICAL STAFF

4.1 Plumbing hookup

Water supply and drain connection

The water pipelines and electricity supply cable lead out of the bottom
right-hand corner of the appliance. Connect the water intake hose to a
connector with ¾” gas threaded fitting, fitting the filter A provided (in
models with aquastop, the filter and ring-nut form a single unit).
The connection to the water mains must only be made with new hoses;
the use of old or worn hoses is not permitted.

FOR MODELS WITH A WATER SOFTENER

AN ‘APPROVED’ DOUBLE CHECK VALVE OR SOME OTHER NO LESS EFFECTIVE DEVICE PROVIDING
BACKFLOW PREVENTION PROTECTION TO AT LEAST FLUID CATEGORY TWO SHALL BE FITTED AT THE
POINT OF CONNECTION BETWEEN THE WATER SUPPLY AND THE FITTING OR APPLIANCE.

FOR MODELS WITHOUT A WATER SOFTENER

AN ‘APPROVED’ SINGLE CHECK VALVE OR SOME OTHER NO LESS EFFECTIVE DEVICE PROVIDING
BACKFLOW PREVENTION PROTECTION TO AT LEAST FLUID CATEGORY TWO SHALL BE FITTED AT THE
POINT OF CONNECTION BETWEEN THE WATER SUPPLY AND THE FITTING OR APPLIANCE.
The dynamic water supply pressure must be between 1 and 6 bar; if it is higher, installation of a
pressure reducer is necessary.
It is essential to fit a main stop tap on the water intake deliver pipeline; the tap must be accessible

after installation of the appliance, so do not install it behind the dishwasher. The stated cycle duration
applies to appliances supplied with hot water >50°C<60°C. If the dishwasher is supplied with cold
water, the cycle duration might increase depending on the intake water temperature. The dishwasher

is fitted with a drain pump and can operate with drain connections on the floor or wall.

Drainage:

The dishwasher is fitted with a drain pump and can operate
with drain connections on the floor or wall.

Warning! Maximum height of drain hose!

Caution: make sure that the intake and drain hoses

are not bent, constricted or crushed after
installation.

7

If the appliance is fitted with a water softener, the drain must not be connected to a siphon

with valve ! water softener will be out of use

Refer to the connection diagram for the maximum permitted height of wall drains – (see TECHNICAL
DATA)

Caution: make sure that the intake and drain hoses are not bent, constricted or crushed
after installation.

4.2 Electrical connection

The dishwasher and any additional equipment must be connected to the electrical
system by authorised, skilled staff, in accordance with the relevant regulations; also

comply with the technical instructions for the connection.
The total rated power is stated on the appliance’s technical data plate.
The electrical protection devices fitted for the dishwasher must serve this appliance only.
The user must have a master switch and a differential safety breaker, with rating

suitable for the appliance’s characteristics, installed on the electricity supply line in
accordance with the relevant regulations.

These switches must be installed close to the dishwasher, be easily accessible after
installation, and provide complete disconnection from the electrical mains in overvoltage
class III conditions.

Warning !!!
The dishwasher is always powered up unless the master switch is turned off.

Connect the appliance to the user’s earth system. The terminal for the connection is in
the bottom right-hand corner of the appliance.
The earth wire (PE) is yellow-green in colour, the neutral wire (N) is blue and the live wires
(L1, L2, L3) are black, grey and brown.
In the event of single-phase connection (230V-1N~), the connection to the electrical

mains must be made using a cable with plug compliant with the relevant regulations.

THE POWER SUPPLY CABLE, AS PROVIDED, MUST BE REPLACED BY THE
MANUFACTURER OR AN AUTHORIZED SERVICE CENTER IN COMPLIANCE WITH THE
SPECIFICATIONS PROVIDED ON ELECTRICAL DIAGRAM SUPPLIED IN THE MACHINE IN
ORDER TO PREVENT ALL RISKS.

8

5 FIRST START-UP

First start-up

The electrical protection system must undergo a functional test before the appliance is put into
operation.
The appliance must be installed and/or inspected by qualified staff, who will start it up for the first
time and provide the relevant operating instructions.

Preparing for use (important)

The rinse aid dispenser is fitted on all models, the detergent dispenser only on some.
If both dispensers are present put the external detergent and rinse aid containers in place and insert
the respective intake hoses on the rear of the appliance into them.
Red hose: detergent
blue hose: rinse aid
note: It takes about 10-15 wash cycles before they arrive in detergent and rinse tank and boiler.

Before inserting the hoses into the containers, fit the weights
(needed to ensure that they always draw in liquid from the bottoms
of the containers) and the filters onto their ends as shown.
If the detergent dispenser is not factory-fitted, it can be retrofitted
after ordering the relative kit.

As an alternative an external dispenser can be fitted, making the electrical connection by means of an
H05 RN-F 2x0.5 mm electrical cable, which can be laid along the route shown in the TECHNICAL DATA
diagram. The electrical connection must be made in accordance with the electrical system diagram
supplied with the dishwasher, disconnecting the internal dispenser, if any, and making the connection
to the external unit.
The dispenser must operate on 230V/50 Hz with maximum power absorption of 15 W.
Connect to the detergent dispenser outside the dishwasher using the red hose mentioned above.
As an alternative an external dispenser can be fitted, making the electrical connection by means of an
H05 RN-F 2x0.5 mm electrical cable, which can be laid along the route shown in the TECHNICAL DATA
diagram and connected as shown in the wiring diagram supplied with the dishwasher.
The dispenser must operate on 230V/50 Hz with maximum power absorption of 15 W.
Connect to the detergent dispenser outside the dishwasher using the red hose mentioned above.

IMPORTANT:

Whenever the type of detergent or rinse aid is changed, it is ABSOLUTELY ESSENTIAL to flush out
the peristaltic pumps by placing the external intake pipes in water for a few cycles.
Always use only products specifically recommended for use in a dishwasher.

Failure to comply with this recommendation leads to forfeiture of the warranty entitlement on
the appliance’s water system.
The internal pipes of the detergent and rinse aid pumps should be replaced by the After-Sales
Service every 12 months or 15,000 wash cycles and operation of the diaphragm rinse aid pump
should be checked.

9

6 SET-UP

Set-up

During first start-up, the functions/parameters listed below must be set or adjusted:

6.1 Dishwasher parameter modification procedure:

Access “programming mode”

With the tank empty (during “FILL”)

1- Switch on the appliance; the display will show “FILL”
2- Open the door/lift the hood (depending on the
model)
3- Press the button once. The display will show
“UNLO”.
4- Close the hood/door (depending on the model).
5 - Press the button and hold it down for 5/7 seconds.
When the second beep is heard, release the button
and press it again to access the main PCB setup menu.

With the tank full (during “P1 – P2 – P3 – P4”)

1- Press the button once. The display will show
“UNLO”
2 - Press the button and hold it down for 5/7
seconds. When the second beep is heard, release the
button and press it again to access the main PCB setup
menu.

Rinsing temperature (boiler temperature)

Washing temperature (tank temperature)

Quantity of rinse aid dispensed, OPT, only if installed
(the number indicates the number of seconds for which
the peristaltic pump is operated)

10

Quantity of detergent dispensed, OPT, only if installed
(the number indicates the number of seconds for which
the peristaltic pump is operated)

Start-on/start-off
Set at “on” to start the cycle when the hood is closed.
Set at “off” for cycle start after confirmation with the
start button

Water hardness setting (OPT, on models with softener
only)

tStP on/off

“on” = minimum rinsing temperature as set, regardless
of intake water temperature; the cycle duration may be
a few seconds longer than the nominal length.
“off” = the minimum rinsing temperature might be a
few degrees lower than the setting if hot intake water
is not used.

Rinse aid pump total operating minutes display.
This value can be reset after pump maintenance - see
below.

Detergent pump total operating minutes display.
This value can be reset after pump maintenance - see
below.

11

Energy consumption (kW) display

The Pc option indicates the total kW consumed since
installation of the dishwasher or since the latest reset.

Display of the number of cycles performed

When scrolling through the appliance parameters, the
“tc 88888” item will also appear; this is the count of the
total cycles performed by the dishwasher since
installation.
This parameter cannot be modified or reset unless the
software is reprogrammed.

Customisation of duration of program P4.

Steam extraction system operating time display and
setting

This submenu and the relative functions can only be
accessed with the aid of a password available on
SmegTech and only by technical staff.

12

6.2 Quit “ SET-UP “ menu

Wait more than 10 seconds without pressing any button and the appliance quits this menu automatically,
or press the on/off button to exit.

Caution: the tank and boiler temperatures shown on the display may be different from the actual

temperatures by a few degrees, especially in transient phases (just after the FILL is completed, just after
the end of the cycle, etc.) due to the inertia of the measurement probe.

6.3 Rinsing temperature setup

Modify the value of the parameter by pressing .

6.4 Washing temperature setup

6.5 Rinse aid dispensing setup

* default value (factory preset)

Modify the value of the parameter by pressing .

Modify the value of the
parameter by pressing .

Delivery time

RINSE AID

(s)

0 0,0

6 0.6
12 1.2
18 1.8
24 2.4

30* 3.0

Delivery

quantity (c.c.)

36 3.6
42 4.2

13

6.6 Adjusting detergent dispensing (optional if installed)

Modify the value of the
parameter by pressing

.

Delivery time

DETERGENT

Delivery

(s)

quantity (c.c.)

0 0.0
4 1.4
8 2.8

* default value (factory preset)

6.7 Autostart function

Modify the parameter (ON/OFF) by pressing .

Set at “on” to start the cycle when the hood is closed.
Set at “off” for cycle start after confirmation with the start button

12 4.3

16* 6.7

20 7.1
24 8.5
28 11.7
32 13.3

14

6.8 Regeneration frequency setup (models with softener)

 (Default value: H03; modify the parameter to suit the mains water hardness.
 At first use, the salt tank has to be filled. It is subsequently sufficient simply to fill up with

regenerating salt when necessary.

Modify the
value of the
parameter
by pressing

.

22.5 40 H04
28 50 H05

Important:

During normal operation, the dishwasher will perform
a number of washing cycles while regeneration is in
progress. During this time (5-6 cycles) the intake water
will not be treated, but this will not affect the washing
quality.

With values over 60°f an external water treatment device must be used and the regeneration frequency

must be set on H00.

Hardness

(°dH German

degrees)

Regeneration

off

Hardness (°dF

French

degrees)

Regeneration off

8.5 15 H01
11 20 H02
17 30 H03

60

33.5

Setting

level

H00

H06

6.9 tStP (minimum rinsing temperature) function

Modify the parameter (ON/OFF) by pressing .

Set at “on” for minimum rinsing temperature as set; set at “off” for rinsing regardless of boiler
temperature. If the parameter is set as “off” and hot intake water is not used, the minimum rinsing
temperature might be a few degrees lower than the setting.

If the thermostop device is set “off” the rinsing T° are no longer monitored and the user is

responsible for ensuring that the minimum correct T° are maintained for the tank and boiler. It is
particularly important to check the intake water temperature.
Also refer to the insufficient washing/drying /foam in tank point of the “troubleshooting” section : restore
T Stop ON and/or connect the appliance to a hot water supply

15

6.10 Rinse aid pump (display and if required reset during maintenance)

To reset, press for 3 seconds.

6.11 Detergent pump (display and if required reset during maintenance)

To reset, press for 3 seconds.

6.12 Energy consumption – Display and reset if required

To reset, press for 3 seconds.

6.13 Customisation of duration of program P4.

The duration of program P4 can be customised from 3 to 10 minutes

Access the programming procedure and scroll through to
“ınF” using the button, then scroll through to 03:00 and
press the button to set the time required (from 3 to 10

minutes)

After a few seconds without the user pressing any buttons,
the display will return to the normal operating status and the
modifications will be saved.

16

6.14 Steam extraction time setting (optional if installed)

Steam extraction system operating time display and

setting

6.15 Service setting (for After-Sales Service only)

See information on Smegtech

6.16 Starting the peristaltic pumps – rapid filling of detergent and rinse aid
delivery circuit.

Perform after the parameter modification procedure explained in the previous point.

With the dishwasher powered up, access “programming
mode” by pressing the on/off button for a few seconds;
at the “beep”, release the button and press it again quickly
within 0.5 seconds.
The peristaltic pumps continue to operate until the same
button is pressed again. The rinse aid and detergent symbol
lights remain on as long as the pumps are on; bear in mind
that the rinse aid peristaltic pump fills the circuit in about 7
minutes, while for the detergent it only takes 2 minutes. So
draw only rinse aid from the jerry cans (1 for the rinse aid
and the other for the detergent) for the first 5 minutes and
then also take in detergent for the last 2.

17

7 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR

THE TECHNICIAN)

The dishwasher is able to identify a number of malfunctions and show them on the display.
If the problem persists after the dishwasher has been switched off and back on, proceed as described
below:

Err01

Err04 Tank temperature probe malfunction

Err05 Tank water filling malfunction

Err06

The anti-flooding system has been
activated (for the relevant models only).

Water pump-out malfunction

Large water leak: check the origin of the problem.

Tank temperature probe disconnected or not
working.

The tank does not fill within the allowed time: check
water intake tap, dynamic pressure in intake
system, cleaning of water intake filter, possible
damage to water intake hose or cleaning of rinsing
nozzles.
If the problem persists during FILL:

- tank pressure switch has failed (continuous empty
reading: check whether tank safety pressure switch
is tripped)

- leak from pipe connected to air trap
If the problem occurs during work cycle

- filler hose bleeder valve fouled: tank empties
completely at end of a wash cycle due to siphon
effect.

Inspect the filters for dirt and check that the drain
hose is not blocked, bent or crushed.
Check in this order

- with tank empty: constant “tank full” signal: tank
pressure switch faulty or leak from connections of
air trap connection pipe (water entering pipe)

- with tank full: drain pump failure

With tank full:
see above (water pump-out malfunction)

Err09 Too much water in tank

Err23 Boiler does not heat up as expected

With tank empty: constant “tank full” signal: safety
pressure switch faulty or leak from connections of
air trap connection pipe (water entering pipe)

The problem might occur because water is
continually entering the tank (the causes are as for
Err5 – see above)
If it persists, check in this order:

- damaged boiler heating element

18

Err24 Boiler temperature probe malfunction

- contactor failure,

- boiler safety thermostat failure,

- boiler temperature probe faulty or incorrectly
positioned

- motherboard relay failure,
Important: if the boiler heating element is damaged,
this might be due to operation with no water in the
boiler - the pressure switch is indicating full even
with the boiler empty: check and if necessary
replace the boiler air trap and/or the relative
pressure switch: the problem is generally preceded
by “boiler overheating E28”

Boiler temperature probe disconnected or not
working

Err25 Boiler water filling malfunction

Err26 Boiler emptying malfunction

Err27

Err28

Boiler emptying malfunction – with tank
full

Boiler heating malfunction
(overheating)

The boiler does not fill within the allowed time:
check water intake tap, dynamic pressure in intake
system, cleaning of water intake filter, possible
damage to water intake hose
Or check in this order:

- boiler pressure switch has failed (continuous
empty reading)

- pipe leaking/disconnected (water entering pipe)

- check that rinsing spray arm nozzles are clean

- boiler pressure switch has failed (continuous full
reading)

- pipe leaking/disconnected (water entering pipe)

- rinsing pump not working

Boiler pressure switch has failed (continuous full
reading)

First check:

- boiler pressure switch has failed (continuous full
reading)

- pipe leaking/disconnected: water entering pipe
connected to air trap, pressure switch continues to
give full reading even with boiler empty, heating
element operating dry
Or:

- circuit board relay failure, or

- contactor failure

19

8.1 Control panel

8 INSTRUCTIONS FOR THE USER

On-off button
Program selection button
Start CONFIRM/PAUSE button
Total emptying button (tank and boiler)
Additional function selection button
L1 Mains power on light
L2 Intake/standby cycle in progress light (red/green)
L3 Pump-out in progress light
No rinse-aid symbol (if a system for monitoring outside the dishwasher is provided)
Tank heating element on symbol
No salt symbol (if softener is fitted)
Boiler element on symbol
No detergent symbol (if a system for monitoring outside the dishwasher is provided)

20

8.2 Before washing

Use only detergents and rinse aids for industrial dishwashers.
Do not use detergents intended for hand washing.
We recommend the use of Smeg products, specially developed for this dishwasher.

When topping up the tanks, take care not to swap the products; this might damage the

dishwasher and cause malfunctions.
Do not mix different detergents; this would damage the dispenser device.
Industrial dishwasher detergents may cause serious irritation. Comply carefully with the instructions
provided by the detergent producer on the pack.

Turn on the

mains water

tap (user)

The level of

detergent and

rinse aid in the

containers.

Check:

That there is

regenerating salt

in the relative

container (if

fitted).

That the filters are in

place, the spray arms

rotate, and there are

no foreign bodies in

the dishwasher.

Switch on the

master switch

(user): the word

“OFF” appears on

the display.

8.3 First use each day (tank and boiler empty)

Display shows Actions and what happens

With the hood closed:

Press and hold it down, with word FILL appears.

The dishwasher fills the tank after the water in the boiler
has heated up; light L2 shows orange and the boiler
heating element symbol appears on the display.

Wait for P1 to appear and LED L1 to change from red to
green; the tank heating element light comes on until the set
temperature is reached. The duration of this stage may vary
depending on the mains water temperature and on the
single-phase connection.

Press the button quickly to display the tank (left) and
boiler (right) temperatures for a short time.

21

Load the dishes
Lower the hood and the cycle starts

Select the program required by pressing .

Only with Autostart OFF:
Confirm the program start by pressing and holding it

down for 1 second (light L2 changes from green to orange).

Cycle in progress, the progress of the cycle is displayed by
vertical bars which illuminate in sequence. If the door is
opened “CLOSE” flashes and the program stops. Close the

door again and confirm the program start by pressing
and holding it down for 1 second (light L2 changes from
green to orange).

At the end of the program “End” flashes

Unload the dishes

When the hood is closed again, the system offers the last program run.

22

8.4 Changing the Program

With the hood closed, to change to a fresh program instead
of repeating the last one, press the button. The

programs available are displayed.

If a program has already started, press and hold it down
to interrupt it.

Change the program by pressing

Confirm the program start by pressing and holding it
down for 1 second (light L2 changes back to orange).

Note:

During heating of the water in the boiler and tank with the cycle running, the tank heating element
and boiler heating element symbols may appear on the display.

Filter presence sensor (on some models only)

The filter is fitted with a sensor which checks that it is properly fitted; if it is not in the correct position,
the word FiLter” appears on the display.

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9 CHOOSING THE PROGRAM

PROGRAM TYPE OF DIRT DURATION (*)

P1 Glasses and plates with light dirt Approx 60’’

P1+

Sanitisation function

P2 Glasses, cups and plates with light dirt Approx 90’’

P2+

Sanitisation function

P3 Very dirty dishes and cutlery Approx 150’’

P3+

Sanitisation function

P4 Depending on the duration set. As required from 3 to 10 minutes

(*) The cycle duration stated above refers to three-phase appliances supplied with hot water at

50°C. If the appliance is supplied with cold water, the cycle duration might increase depending
on the intake water temperature, since the dishwasher is fitted with the HTR system, which
requires set temperature and pressure for rinsing.

Glassware, plastic trays, pre-washed plates Approx 60’’

Normal cycle for glassware Approx 80’’

Cycle for sanitising plates and glasses Approx 4 minutes

10 SUPPLEMENTARY FUNCTIONS

To select a supplementary function, when the program required is shown on the display (P1, P2, P3 or
P4) press the button. Only one supplementary function can be selected for each program.

10.1 Selecting the crys “glassware” function (available in P1-P2)

Reduces the program’s rinsing temperature and duration

After selecting the "Crys” function, perform a cycle with the appliance empty to stabilise the boiler
temperature

Press and hold it down to select the glassware function
then press to confirm the program start.

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10.2 Selecting the “extra rinse” function (available in P1-P2-P3-P4)

Extends the duration of the rinse

Press and hold it down to select the extra rinse
function then press to confirm the program start.

During performance of cycles with Extra Rinse, the cycle duration increases by about 30" because of the
increased duration of the rinsing phase and the time consequently required to restore the level and
temperature in the boiler. If the Termostop is OFF and the dishwasher is connected to cold water, this
function will be less effective

Selecting the “sanitisation” function (only available in P3)

Increases the program’s washing and rinsing temperatures and duration

Press to select the sanitisation function then to
confirm the program start.

N.B.:

- the supplementary function remains selected until the program is changed or the dishwasher is
switched off by pressing the button.

- During execution of the selected program, the display alternates between showing the
supplementary function and the duration.

LOADING THE DISHES

Plates

The basket is able to take
12 soup plates or 18 dinner plates.
Remove solid residues (bones, fruit
peel, stones, etc.) and first soak
plates with dried residues of
cheese, egg, etc. in water.

Glasses

Load glasses upside down.

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Cutlery

Use the basket(s) provided. Load cutlery loose, preferably with the handle at the bottom, taking care not
to injure yourself with fork prongs or knife blades.

TOTAL PUMP-OUT AT THE END OF THE DAY

The dishwasher is able to perform an automatic cleaning cycle at the end of the day.

Press the pump-out button and the display shows
“UnLo” and the duration.

Confirm by pressing ; light L2 turns orange.

When pump-out is complete the appliance switches to
“OFF” status.

11 MAINTENANCE AND CLEANING

Although no particular scheduled maintenance is required, users are advised to have the dishwasher
checked by a specialist technician twice a year.
N.B: the manufacturer accepts no liability for wilful damage or damage deriving from carelessness,
neglect, failure to comply with instructions, regulations and standards or incorrect connections.

11.1 Daily cleaning

The dishwasher has IPX5 protection, but the use of direct water jets for cleaning is forbidden.

Cleaning the filter during the day

In case of particularly heavy-duty working conditions, the filter should be cleaned every 30-40 cycles,
keeping the machine in operating conditions; to do this, carry out the “partial tank pump-out” routine
(program “P0”).

Press the button, and hold it down, until “P0” and
the duration of 1’ appear on the display.

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Confirm by pressing ; light L2 turns orange.

At the end of the pump-out the word “End” flashes on
the display. The display returns to showing “P1”. Clean
the filter; the dishwasher automatically fills the tank
when the hood is closed.

Remove the filters (simply lift them out as shown here), taking care that
no large residues fall into the sump underneath. Clean them to remove
residues and rinse with plenty of water, then put them correctly back in
place; do not use sharp or pointed tools.
Clean away any limescale deposits to prevent excessive build-ups;

- If possible, leave the hood ajar when not in use;

- Clean surfaces thoroughly and often with a damp cloth; use
neutral, non-abrasive detergents which do not use chlorine
compounds, which corrode and damage stainless steel.

Do not use the products mentioned above even when cleaning the floor underneath or in the vicinity of
the dishwasher,
to ensure that fumes or drops cannot damage the steel surfaces.

IMPORTANT:The dishwasher automatically performs program “P0” at the start of the day if water has
been left in the tank and has dropped below the temperature of 40°C

11.2 Routine inspection of the spray arms

Remove the washing and rinsing (top and bottom) spray arms by unscrewing the central screw; remove
the rinsing spray arms 3 and remove the screws 2 as shown. Do not unscrew the nozzles. Clean the holes
and nozzles under a jet of clean running water; do not use tools which might cause damage. Reassemble
the spray arms with care.

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Clean the outside of the appliance with a damp cloth and neutral soap, rinsing and drying thoroughly.

11.3 Lengthy periods out of use

If the dishwasher is to be out of use for a fairly long period of time, the detergent and rinse aid dispenser
devices must be emptied to prevent crystallisation and damage to the pumps: remove the intake hoses

from the detergent and rinse aid containers and place them in a container of clean water, then perform
a few wash cycles followed by a complete pump-out.
Finally, turn off the master switch, close the water intake valve and leave the hood ajar until the interior
is completely dry. The detergent and rinse aid intake hoses must be put back into the containers when
the dishwasher is returned to service, taking care not to swap them over (red hose = detergent, blue hose
= rinse aid).

12 TROUBLESHOOTING

PROBLEM POSSIBLE CAUSE POSSIBLE REMEDY
LIGHT S1 DOES NOT COME

ON

Mains power failure

Check electrical mains connection.

The dishwasher has not yet
finished filling.

Wait for the word FILL to go out.

WASHING PROGRAM DOES
NOT START

The word CLOSE remains on
the display

If the word CLOSE remains on the
display even with the hood closed, call
the after-sales service.

Spray arm washing holes
blocked by dirt or limescale

Remove spray arms and clean them

(11.2 Routine inspection)
Filter fouled See “Cleaning the filter during the day”
Too little or unsuitable

detergent or rinse aid

Check type and quantity of detergent.
No or not enough detergent

POOR WASHING RESULTS

or rinse aid being supplied:
detergent or rinse aid not
being taken from the relative

Pipe inside detergent and/or rinse aid

peristaltic pump worn or broke, have it

replaced by the After-Sales Service.
container.

Plates/glasses badly arranged Arrange plates/glasses correctly.

Check temperature shown on the
Low washing temperature

display, call the after-sales service if

less than 50

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INADEQUATE RINSING

Inappropriate cycle set

Spray arm nozzles fouled
Limescale in boiler

Rinse aid unsuitable or not
being delivered correctly.
Rinsing temperature too low

Increase washing duration, especially if

dishes are very dirty or dirt has dried

on.

- Check that nozzles are clean, and

ensure that the softener is working

properly (if installed).

- Check that the filter of the hose

inserted in the rinse aid tank is not

fouled.

Check container of rinse aid and

whether it is suitable for the type of

mains water. Check boiler temperature

setting. If the problem persists, contact

the after-sales service.

DISHES NOT PROPERLY
DRIED

STAINS ON GLASSES AND
CUTLERY

WATER IN TANK AFTER
PUMP-OUT

Rinse aid unsuitable or not
being delivered correctly.
Water hardness above 12°f
or large amounts of dissolved
salts

Drain hose incorrectly
positioned or partially
obstructed.

Drain hose incorrectly
positioned or partially
obstructed.

Check container of rinse aid and

whether it is suitable for the type of

mains water. Restore T Stop ON and/or

connect the appliance to a hot water

supply. If the problem persists, contact

the after-sales service.

Check that the dishwasher hose and

drain are unobstructed and the drain is

not too high up; see connection

diagram.

Check that the dishwasher hose and

drain are unobstructed and the drain is

not too high up; see connection

diagram.

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13 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR

THE USER)

The dishwasher is able to identify a number of malfunctions and show them on the display.
If the problem persists after the dishwasher has been switched off and back on, proceed as described
below:

(TO ALLOW THE AFTER-SALES SERVICE TO TAKE THE APPROPRIATE ACTION, ALWAYS MAKE A NOTE OF
THE ERROR INDICATED)

The anti-flooding system has been

Err01

Err04 Tank temperature probe malfunction Contact the After-Sales Service

Err05 Tank water filling malfunction

activated (for the relevant models
only).

Contact the After-Sales Service.

Check that the water intake tap is on and the dynamic
pressure in intake system, inspect water intake filter
and clean if necessary. If the problem persists, contact
the After-Sales Service.

Err06

Err09 Tank water level too high Contact the After-Sales Service.

Err23

Err24 Boiler temperature probe malfunction Contact the After-Sales Service.

Err25 Boiler water filling malfunction

Err26 Boiler emptying malfunction

Err27

Err28

Water pump-out malfunction
(dishwasher is left full of water)

Boiler heating malfunction (does not
heat up)

Boiler emptying malfunction – with
tank full

Boiler heating malfunction
(overheating)

Inspect the filters for dirt and check that the drain hose
is not blocked, bent or crushed.
If the problem persists, contact the After-Sales Service.

Contact the After-Sales Service.

Check that the water intake tap is on and the dynamic
pressure in intake system, inspect water intake filter
and clean if necessary. If the problem persists, contact
the After-Sales Service.

Check that the rinsing spray arm nozzles are not fouled
If the problem persists, contact the After-Sales Service.

Contact the After-Sales Service.

Contact the After-Sales Service.

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INFORMATION AND AFTER-SALES SERVICE FOR SMEG PRODUCTS

COMMERCIAL DISHWASHERS

Our Sales Department staff will be able to provide you with information about prices and special offers.

Our After-Sales Department will be able to provide you with guidance about keeping your appliance
functioning correctly and put you in touch with your nearest authorised Service Centre.

Our whole product offering can be viewed at:

www.smegfoodservice.com

International customers, please co

ntact your local SMEG distributor.

Smeg S.p.A.

Via Leonardo da Vinci, 4 - 42016 Guastalla (Reggio Emilia)

Tel. [phone] - Fax + 39 0522 821453

email [e-mail]

19.390.2718.14 02/05/2018

Ed. Ed. Date

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