Smeg CWG400BS, CWG400B User Manual

PROFESSIONAL DISHWASHER



1 Precautions for safety and use

2 Technical data

3 Installation and positioning

4 INSTALLATION INSTRUCTIONS FOR THE

AFTER-SALES SERVICE

5 Start-up

6 Settings

7 Malfunctions shown on the display (for the technician)

8 INSTRUCTIONS FOR THE USER

9 Choosing the program

10 Maintenance and cleaning

11 Troubleshooting

12 Malfunctions shown on the display (for the user)

You are advised to 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.

1

1 Precautions for safety and use

THIS MANUAL IS AN INTEGRAL PART OF THE DISHWASHER AND MUST ALWAYS BE
KEPT WITH THE APPLIANCE.

THE DISHWASHER IS INTENDED ONLY FOR PROFESSIONAL USE BY TRAINED 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 ABOVE REGULATIONS OR DERIVING FROM INCORRECT USE,
TAMPERING WITH EVEN JUST ONE PART OF THE APPLIANCE AND 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.

THE
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.
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.

POSITIONING, CONNECTIONS, COMMISSIONING, TROUBLESHOOTING AND

REPLACEMENT OF THE POWER SUPPLY CABLE MUST BE CARRIED OUT BY SKILLED
STAFF.

THE APPLIANCE MUST BE IN COMPLIANCE WITH ELECTRICAL SYSTEM SAFETY

REGULATIONS.

SYMBOL ON THE PRODUCT OR IN THE TECHNICAL DOCUMENTATION INDICATES THAT THIS

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.

NEVER USE THE DISHWASHER OR ANY PART OF IT AS A LADDER, SUPPORT OR STAND
FOR PEOPLE, ANIMALS OR ANY OBJECT.
LEANING OR SITTING ON THE OPEN DOOR OF THE DISHWASHER MIGHT CAUSE IT TO
TIP OVER, PUTTING PEOPLE IN DANGER.
NEVER LEAVE THE DISHWASHER DOOR OPEN SINCE PEOPLE MIGHT TRIP OVER IT.

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

2 Tecnical data

Supply voltage V 230V 1N ~
Frequency Hz 50
Max. power absorption at 230V 1N ~ kW 3.2
Boiler heating element power at 230V 1N ~ kW 2.8
Tank heating element power kW 0.8
Water intake pressure kPa (bar) 200-600 (2 ÷ 6)
Water intake temperature °C 15°C – 60°C
Water hardness (models with softener) °dF 15°dF-60°dF
Rinse cycle water consumption I 2.3
Boiler capacity I 3.8
Tank capacity I 7
Standard cycle duration with intake water at 50°C s 2/2,5/3
Noise level dB(A) 50
Degree of protection IPX 4
Net weight kg 40/43
Power supply cable type ◄HAR► H07RN-F
Fuse A 4

* 600 max if siphon with valve

LOWER BACK PANEL

R

FILLER HOSE

C
Q

EARTH TERMINAL
ELECTRICITY SUPPLY CABLE

E

PERISTALTIC HOSES

P

DRAIN HOSE

S

3

RD Detergent dispensing regulator screw (on some models only)
RB Rinse aid regulator screw

4

3 Installation and positioning

INSTALLATION and POSITIONING

Bring the 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 environment-friendly. 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.

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

4 INSTALLATION INSTRUCTIONS FOR THE AFTER-SALES SERVICE

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.

The dynamic water supply pressure must be between 2 and 7 bar; if it is higher a pressure reducer must be
installed. If the pressure is less than 2 bar it might be necessary to fit a special pump on the appliance.

Contact the After-Sales Service.

It is essential to fit a main stop tap on the water intake 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.

Drainage:

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

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

If the drain connection is to an outlet with valve, the maximum height of the drain is reduced to 600 mm.

In all cases, after installation check that the drain is fully functional by pumping out the tank completely (P0
cycle).

4.1 Water connection

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

installation.

6

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
machine’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..

IN THE EVENT OF DAMAGE TO THE SUPPLY CORD, HAVE IT REPLACED BY THE MANUFACTURER
OR AN AUTHORIZED TECHNICAL SERVICE CENTRE IN ORDER TO AVOID ANY RISK.

7

8

5 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 the 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 machine into them.
Red hose: detergent

blue hose: rinse aid

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 by ordering the relative kit.

As an alternative an external dispenser can be fitted, making the electrical connection by means of an H05 RN­F 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.

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.
The internal pipes of the detergent and rinse paid pumps should be replaced by the After-Sales Service

every 12 months or 15,000 wash cycles.
Failure to comply with this recommendation leads to forfeiture of the warranty entitlement on the

appliance’s water system.

IMPORTANT:

9

6 SETTINGS

SETTINGS

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

A series of operations can be carried out when the dishwasher is first installed to customise it to the user's
requirements. To perform these operations, access “programming mode” as explained below.

6.1 Dishwasher parameter modification procedure:

The two red digits provide the following information:

Appliance off but powered up: all decimal points on both digits
Appliance on: Boiler temperature
Washing phase: Tank temperature
Pause phase: Boiler temperature
Rinse phase: Boiler temperature
Programming phase: See parameter programming section
Error message: See error messages section

6.2 PARAMETER PROGRAMMING PROCEDURE

To access the programming menu, proceed as follows:

1) switch the appliance off with the (OnOff) key

2) Press the

key 7 times within 6 seconds.. Wait for the 6 seconds to pass; at the end P0

appears on the display

3) Use the

4) Press

key to select the parameter for modification

to display the parameter for modification

5) Modify the parameter by pressing

6) Confirm the change by pressing

7) Select the other parameters for modification in the same way and proceed as described above

8) After setting all the appliance parameters, press the OnOff key to quit.

The modification sequence only considers the parameters declared in the software to be modifiable (letter M
in first column in table). The parameters not featured on the selected model are also ignored.

6.2.1 MODIFIABLE PARAMETERS

This table lists the model choice or cycle and temperature option parameters.

F/M ID Description

M P0 Appliance Type

F P1 Machine Model

M P2 Boiler temperature

M P3 Tank temperature

M P4 Thermostop option

M P5 Soft Start option

M P6 Boiler temperature offset

M P7 Tank temperature offset

M P8 Real temperature display

F P9 Tank probe type

Default
1

80C
56C
1
1
0
+6
1
1

Min Max Notes

1 3 Construction version

60C 90C Step 1 degree

48C 65C Step 1 degree

0 1 0=off 1=on

0 1 0=off 1=on

-20 +20 Real=measured+Offset

-20 +20

0 1 0= filtered, 1= real

0 1 Do not modify

Note P6 and P7: negative numbers are indicated by illumination of both decimal points (e.g.: -12 Æ
“1.2.”)

10

6.2.2 ALARM TRIGGER TIME THRESHOLDS

This table lists all the safety device trigger time thresholds.

F/M ID Description Default Min Max Notes

F A0

F A1 Boiler max. heating time 10 min 3 15 Step = 1 min

F A2 Tank max. heating time 30 min 5 60 Not active with PL ON

F A3 Maximum water intake time 3 min 1 20 Step = 1 min

F A4 Maximum emptying wait time 1 min 1 2 Step = 1 min

6.3 Setting up rinse aid dispensing

Adjustments are made using the adjuster

screw AS SHOWN. The quantity
dispensed is reduced by turning

clockwise and increased by turning
anticlockwise.

Caution: ensure that the appliance is not powered up - FATAL ACCIDENT HAZARD

6.6 Setting up detergent dispensing



Adjustments are made using the adjuster screw

AS SHOWN. The quantity dispensed is reduced
by turning anticlockwise and increased by
turning clockwise.

Caution: ensure that the appliance is not powered up - FATAL ACCIDENT HAZARD

11

6.7 Regeneration frequency setup (models with softener)

6.7.1 Table of parameters

ID Washing cycles between regenerations
H0 Function off (value set when dishwasher is supplied)
H1 94 washing cycles
H2 83 washing cycles
H3 53 washing cycles
H4 33 washing cycles
H5 27 washing cycles
H6 20 washing cycles

Hardness (°dH German degrees) Hardness (°dF French degrees) Setting level

Regeneration off Regeneration off H00

8,5 15 H01

11 20 H02
17 30 H03

22,5 40 H04

28 50 H05

33,5 60 H06

Regeneration cycle duration: 12 minutes

6.7.2 Memorisation procedure

To access the programming menu, proceed as follows:

1) switch the appliance off by pressing the OnOff key

2) Hold down the

3) Use the

sequence

4) Press the OnOff key to confirm the change and quit programming mode.

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

must be set on H00.

and keys simultaneously for 6 seconds; H0 appears on the display

key to modify the parameter; H0,H1,H2,H3,H4,H5 and H0 will appear on the display in cyclic

12

7 MALFUNCTIONS SHOWN ON THE DISPLAY

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:

E.1

Boiler temperature probe malfunction

Boiler temperature probe disconnected or not working

E.2

E.3

E.4

E.5

E.6

Tank temperature probe malfunction

Water intake malfunction

Boiler overheating.

Tank overheating

Water not pumped out of tank

Tank temperature probe disconnected or not working

Water intake not completed in the maximum time allowed

Check dynamic pressure in intake system, and inspect the
water intake filter and rinsing nozzles for dirt.
If the problem persists:

- tank pressure switch has failed (continuous empty
reading)

- leak from pipe connected to air trap

- drain siphon blocked - the tank is empty due to siphoning
when the drain pump is not running

Circuit board relay failure, check circuit board and inspect
boiler heating element for damage

Circuit board relay failure, check circuit board and inspect
tank heating element for damage

Inspect the filters for dirt and check that the drain hose is
not blocked, bent or crushed.
Check that the drain pump is not blocked by dirt by
removing the insert on the sump (from inside the tank)
If the problem persists:

‐ with tank empty: tank pressure switch has failed

(continuous full reading)

‐ with tank full: drain pump failure

E.7

E.8

E.9

-circuit board relay failure

Boiler heating malfunction (does not heat
up)

Tank heating malfunction (does not heat up)

Microprocessor failure Replace circuit board

- tank heating element faulty or "furred" with limescale

- tank temperature probe faulty or incorrectly positioned

- water continues to enter the tank due to intake solenoid
valve failure

-circuit board relay failure

- tank heating element faulty or "furred" with limescale

- tank temperature probe faulty or incorrectly positioned

- water continues to enter the tank due to intake solenoid
valve failure

-

13



8.1 Control panel

8 INSTRUCTIONS FOR THE USER

R

On-off button

Total emptying button (tank and boiler)

Regeneration key (only if softener is fitted)

L1 power on LED
L2 pump-out in progress LED
L3 generation in progress LED
L4 no salt LED (only if softener is installed)
Short cycle key
Medium cycle key
Long cycle key
L5 power on LED
L6 power on LED
L7 power on LED

8.8.

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 irritations. Comply carefully with the instructions provided by
the detergent producer on the pack.

mains water

tap (user)

The level of

detergent and

rinse aid in the

containers.

That there is

regenerating salt in

the relative

container (if fitted).

Check: Turn on the

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.

14

8.3 FIRST USE EACH DAY (tank and boiler empty)

Display shows Actions and what happens

Door closed and master switch on ON:

Press

R

light and the two digits on the display light up.

and hold down for 2-3 seconds; the L1 ON/OFF

P

WARNING! If the appliance is connected to cold water, wait at least 15' before moving on to the next
phase to give the tank time to reach the correct washing temperature.

R

R

52

The dishwasher fills the tank automatically. At the end of

this phase, when the tank is full,

display and program lights L5, L6, L7 are lit.

Load the dishes and close the door.

Select the programme required by pressing one of the
three buttons; the LED of the selected program flashes
and the other two go out. Hold down for about 2” to
confirm. The LED starts to flash and the washing cycle
starts. While washing is in progress the display shows
the water temperature in the tank. During rinsing, it

shows the boiler temperature.

At the end of the program the program LED comes on

and “End” flashes on the display.

P appears on the

Unload the dishes

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

15

8.4 Changing the program (not possible once the program has started)

If the master switch is not turned off, the appliance offers

R

R

52

52

the last cycle run. To change, press the button of the
program required; the light comes on.

To confirm hold down for about 2”. The LED starts to
flash and the washing cycle starts.

9 CHOOSING THE PROGRAM

PROGRAM

(*) The cycle duration stated above is guaranteed if the appliance is connected to 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 and the "thermostop" setting.

LOADING THE DISHES

Plates

The equipment basket is able to

take 8 plates.

Remove solid residues (bones,
fruit peel, stones, etc.) and soak
plates with dried residues of
cheese, egg, etc. in water before
loading in the dishwasher.

TYPE OF DIRT DURATION (*)

P1
P2

P3

Glasses and cups Short 2’

Glasses, cups and plates with light dirt Average 2’ 30”
Very dirty dishes and cutlery Long 3’

Glasses

Load glasses upside down.

Cutlery

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

16

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.

R

Press the pump-out button

flashes and the pump-out and automatic tank cleaning

phase starts.

for about 2”, the LED

R

When pump-out is complete the appliance switches to

“OFF” status. (only 2 digits lit on the display)

After a total pump-out the filters should be cleaned as described above.

Never switch the dishwasher off with water in the tank; pump out firs t.

Resin regeneration (form models with water softener)

Once the number of washing cycles set during installation has been completed, as indicating that the resins will be

spent and regeneration is required, the LED above the
be used for several more cycles, the resins should be regenerated as described below.

R

key flashes even during the cycle. If the appliance is to

Press the

key; the LED flashes and the

regeneration phase starts. It lasts about 13 minutes,

during which time the LED keeps flashing.

When the regeneration phase is complete, the

R

appliance performs a pump-out and automatic cleaning

cycle then switches to “OFF” status (only 2 digits lit on

the display).

If the user chooses not to perform regeneration, the appliance will carry it out AUTOMATICALLY during the total
pump-out phase, which will last about 12’, after which the appliance will switch off automatically.

Topping up with regenerating salt (for models with water softener)

Salt must be added when the “no salt” light (

) appears on the display.

Top up with salt when there is no water in the tank to prevent washing water from getting into the water softener

device.

Caution: use only salt of the specific type, do not use cooking salt.
The salt tank has a capacity of about 1 kg of coarse-grained salt.

The salt reservoir is in the bottom of the tank. After removing the basket, undo the cap and pour the salt in using
the funnel supplied. Remove any salt residues around the opening before screwing the cap back on.

17

10 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.

9.2 Daily cleaning

The dishwasher has IPX4 protection, but the use of direct water jets for cleaning is forbidden.

Cleaning the filter during th day

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 door 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

9.3 Periodic checks

Remove the top and bottom spray arms by unscrewing the central screw and unscrew the caps from the ends of

the rinsing arms 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.

2

1

1

3

2

1

3

2

3

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

9.4 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 door 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).

18

11 TROUBLESHOOTING

If the system fails to pump out because the drain pump is fouled (as
a result of incorrect filter positioning), proceed as follows:

Bale out the dishwasher with a basin and disconnect it from the
electrical mains.

Unscrew the screw A, release the tang B and lift it.

Check that the impeller of the drain pump underneath the cover
turns freely, and is free from dirt, limescale residues, or pieces of
glass. Never use tools, screwdrivers, scissors, etc.

PROBLEM

POSSIBLE CAUSE

POSSIBLE REMEDY

LIGHT S1 DOES NOT COME ON Mains power failure Check electrical mains connection.

WASHING PROGRAM DOES
NOT START

The dishwasher has not yet
finished filling.

The word CLOSE remains on the
display

Spray arm washing holes blocked

by dirt or limescale

Wait for the word FILL to go out.

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

Remove spray arms and clean them

(10.2 Periodic checks)

Filter fouled See “Cleaning the filter during the day”

Too little or unsuitable detergent
or rinse aid

Check type and quantity of detergent.

Check that the detergent intake pipe

Detergent intake blocked

underneath the filter is unobstructed (T
in photo).

POOR WASHING RESULTS

No or not enough detergent or
rinse aid being supplied: detergent
or rinse aid not being taken from
the relative container.

Pipe inside detergent and/or rinse aid
peristaltic pump worn or broke, have it
replaced by the After-Sales Service.

INADEQUATE RINSING

STAINS ON GLASSES AND
CUTLERY

WATER IN TANK AFTER PUMP­OUT

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°

Inappropriate cycle set

Spray arm nozzles fouled

Limescale in boiler

Rinse aid unsuitable or not being
delivered correctly.

Water hardness above 12°dF or
large amounts of dissolved salts

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 container of rinse aid and
whether type is suitable for the mains
water- If the problem persists, contact
the after-sales service.

Check that the dishwasher drain hose
Drain hose incorrectly positioned
or partially obstructed.

and rain are unobstructed and the

drain is not too high up; see

connection diagram.

19

12 MALFUNCTIONS SHOWN ON THE DISPLAY

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:

E.1

Boiler temperature probe malfunction

Boiler temperature probe disconnected or not working

E.2

E.3

E.4

E.5

E.6

Tank temperature probe malfunction

Water intake malfunction

Boiler overheating

Tank overheating

Water not pumped out of tank

Tank temperature probe disconnected or not working

Water intake not completed in the maximum time allowed

Check dynamic pressure in intake system, and inspect the
water intake filter and rinsing nozzles for dirt.
If the problem persists:

- tank pressure switch has failed (continuous empty
reading)

- leak from pipe connected to air trap

- drain siphon blocked - the tank is empty due to siphoning
when the drain pump is not running

Circuit board relay failed, check circuit board and inspect
boiler heating element for damage

Circuit board relay failed, check circuit board and inspect
tank heating element for damage

Inspect the filters for dirt and check that the drain hose is
not blocked, bent or crushed.
Check that the drain pump is not blocked by dirt by
removing the insert on the sump (from inside the tank)
If the problem persists:

‐ with tank empty: tank pressure switch has failed

(continuous full reading)

‐ with tank full: drain pump failure

E.7

E.8

E.9

- circuit board relay failure

Boiler heating malfunction (does not heat
up)

- tank heating element faulty or "furred" with limescale

- tank temperature probe faulty or incorrectly positioned

- water continues to enter the tank due to intake solenoid
valve failure

- circuit board relay failure

- tank heating element faulty or "furred" with limescale

Tank heating malfunction (does not heat up)

- tank temperature probe faulty or incorrectly positioned

- water continues to enter the tank due to intake solenoid
valve failure

Microprocessor failure Replace circuit board

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