Smeg UD505DSUK User manual

PROFESSIONAL DISHWASHER

1
Summary
1 PRECAUTIONSFORSAFETYAND USE..................................................................................................................2
1.1 Trademark .................................................................................................................................................2
1.2 Name and address of manufacturer or distributor...................................................................................... 2
1.3 Declaration of conformity toproduct standards......................................................................................... 2
2 TECHNICALDATA...............................................................................................................................................3
3 INSTALLATION AND POSITIONING...................................................................................................................... 6
4 INSTRUCTIONSFORTECHNICAL STAFF...............................................................................................................6
4.1 Plumbing hookup....................................................................................................................................... 6
4.2 Electrical connection.................................................................................................................................. 7
5 FIRSTSTART-UP.................................................................................................................................................8
5.1 Using the water softener (on models with this feature only) ...................................................................... 8
6 SET-UP (Authorised technical staff only) ............................................................................................................ 9
6.1 Contentsof display...................................................................................................................................10
6.2 Note ondisplay of temperatures.............................................................................................................. 10
6.3 Parameter programming procedure (setup)............................................................................................. 10
6.4 Modifiable parameters............................................................................................................................. 11
6.5 Adjusting detergent and rinse aid dispensing (only available on certain models)...................................... 11
6.5.1 Rinse aid – Grams/liter dosage (depends on model)- The display reads “ri”...................................... 11
6.5.2 Detergent - Grams/liter dosage (depends on model) - The display reads “dE”..................................11
6.6 Starting the peristaltic pumps in manual mode – rapid filling of detergent and rinse aid circuit................ 12
6.7 Adjusting the regeneration frequency (models with softener only) .......................................................... 12
6.8 Mains water hardness setting table.......................................................................................................... 12
6.9 Extra rinse option (long rinse). - Display reads “E.r”................................................................................. 12
6.10 "Clean water cycle" option - Display reads “CL”....................................................................................... 13
6.11 “Thermostop” option - Display reads “tS” ................................................................................................ 13
6.12 Fast/eco starting option - Display reads “Fi”............................................................................................. 13
7 MALFUNCTIONSSHOWN ON THE DISPLAY(FOR THE TECHNICIAN).................................................................. 14
8 INSTRUCTIONSFOR THEUSER.......................................................................................................................... 15
8.1 Control panel ........................................................................................................................................... 15
8.2 Before washing........................................................................................................................................ 16
8.3 First use each day (tank and boiler empty)............................................................................................... 17
8.4 Choosing the program.............................................................................................................................. 17
8.5 Changing the program.............................................................................................................................. 18
9 MAINTENANCE AND CLEANING........................................................................................................................ 20

2
9.1 Daily cleaning of filters............................................................................................................................. 21
9.2 Routine inspection of the spray arms (once a week)................................................................................. 22
9.3 Lengthy periods out of use....................................................................................................................... 23
10 TROUBLESHOOTING..................................................................................................................................... 23
11 MALFUNCTIONS SHOWN ON THEDISPLAY (FOR THE USER) ......................................................................... 25
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.
1PRECAUTIONS FOR SAFETY AND USE
1.1 Trademark
SMEG
1.2 Name and address of manufacturer or distributor
Smeg S.p.A.
Via Leonardoda Vinci, 4- 42016 Guastalla (RE) Tel. [phone] - Fax+ 39 0522 821453
internet: www.smegfoodservice.com, email : [e-mail]
Info :
INFORMATION AND SERVICE FOR SMEGPROFESSIONAL DISHWASHERS
Our Sales Department staff will be able to provide you with information about prices and special offers.
OurAfter-SalesDepartmentwillbeable toprovideyou withguidance aboutkeeping yourappliancefunctioningcorrectly andput
you in touch withyour nearestauthorised Service Centre. Our entire product offering can be viewed at:
1.3 Declaration of conformity to product standards
THIS APPLIANCE IS TAGGED UNDER EUROPEAN DIRECTIVE 2002/96/EC ON WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT
(WEEE). 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. THE APPLIANCE MUST BE GROUNDED AS REQUIRED BY ELECTRICAL EQUIPMENT SAFETY
STANDARDS. THE DISHWASHERIS INTENDED FOR PROFESSIONAL USEONLY AND MUST ONLY BE USED BY AUTHORISEDSTAFF. 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 ORDERIVING FROM INCORRECT USE, TAMPERING WITH EVEN JUST ONE PARTOF THE
APPLIANCE AND THE USE OF NON-ORIGINAL SPARE PARTS.

3
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 BE CARRIED OUT BY QUALIFIED STAFF.
THE APPLIANCE MUST BE GROUNDED AS REQUIRED BY ELECTRICAL EQUIPMENT SAFETY STANDARDS.
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 ANDELECTRONIC 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.
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 APPLIANCEIS 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.
2TECHNICAL DATA
Water intake pressure kPa (bar) 250-600 (2,5 ÷ 6)
Water intake pressure (with rinse pump) kPa (bar) 100-600 (1 ÷ 6)
Water intake temperature °C 15°C – 60°C
Intake water hardness (models with softener <60°f) °f <15°f
Rinse cycle water consumption l3,2
Boiler capacity l6
Tank capacity l13
Duration standard cycles with water at 50°C s90/150/240
Noise level dB(A) < 60
Degree of protection IPX 4
Net weight Kg 32/36
Power supply cable type ◄HAR►H07RN-F

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VOLTAGE
TANK
HEATING
ELEMENT MOTOR BOILER
TOTAL
POWER
RATING
POWER
CABLE
230V1N˜/50Hz/PE 2,0 kW 0,7 kW
4,96 kW 5,7 kW H07RN-F
3G x 6 mm2

5
R REAR INFERIOR PANEL
C CHARGING HOSE
Q EARTH TERMINAL
E POWER SUPPLY CABLE
P PERISTALTIC PUMP TUBES
S WASTE PIPES

6
3INSTALLATION 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 keptwithout constituting any hazard, or maybe 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: cornerguards, 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 theenvironment; 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
Warning: the indoorsystem and premisesin which equipment forinstitutionsisinstalledmust 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 near the machine which may be damaged by
steam or splashes of washing solution, or that such items are suitably protected. Place the dishwasher in the chosen point
and remove the protective film. Level the dishwasher (withthe 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.
4INSTRUCTIONS FOR TECHNICAL STAFF
4.1 Plumbing hookup
PLUMBING HOOKUP
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 Acquastop, 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 1 and 6 bar (according models); if it is higher, installation of a pressure
reducer is necessary. If the pressure is less than 2.5 bar (models without rinse pump) it might be necessary to fit a special pump
on the appliancetoensure optimalperformance. Contactthe After-Sales Service.It isessential tofit amain stoptaponthe water
intake deliver pipeline; the tap must be accessible after installation of the appliance, so do not install it behind the dishwasher.
The statedcycle duration applies toappliancessuppliedwithhot water >50°C<60°C. Ifthedishwasher issuppliedwith 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)
Warning: make sure that the intake and drain hoses are notbent, constricted or crushed after installation.
When installing the drain hose to a siphon with valve, the maximum height of the drain outlet is reduced to 600 mm.

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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.Thetotalratedpoweris stated onthe appliance’stechnical data plate. Theelectricalprotection
devices fitted for the dishwashermust serve this appliance only. The user must havea 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 mainsin overvoltage class III conditions.
Warning!
The dishwasher is always powered up unless themaster switchis 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 andbrown.In theevent 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.
According to the target market, the dishwasher can be equipped with a cable fitted with plug.
THE POWER SUPPLY CABLE, IF FITTED, MUST BE REPLACED BY THE MANUFACTURER OR AN AUTHORISED
SERVICE CENTRE IN ACCORDANCE WITH THE TECHNICAL DATA SPECIFIED ON THE WIRING DIAGRAM
SUPPLIED WITH THE APPLIANCE, TO PREVENT ALL RISKS.

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5FIRST START-UP
First start-up
The electrical protection system must undergo a functional test before the appliance is put into operation.
Theappliancemustbeinstalledand/orinspectedbyqualifiedstaff,whowillstartitupforthefirsttimeandprovidetherelevant
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
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.
IMPORTANT
Whenever the type of detergent or rinse aid is changed, it isABSOLUTELYESSENTIAL 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 professional
dishwasher. Failuretocomplywiththisrecommendationleadstoforfeitureofthe warrantyentitlementontheappliance’swater
system. Replacement of the internal tube of the detergentand rinse aid peristalticpumps is recommended every 12 months or
15.000 wash cycles, by the After-Sales Service.
5.1 Using the water softener (on models with this feature only)
The quantity of lime in the water (which indicates its hardness) causes whitish marks on dry dishes and
dishes alsotendtolose their shine over time. Thedishwasher isequipped withan automatic water softener
which removes the substances that cause hardness from the water with the aid of regenerating salt.
The first time thedishwasher is used, a litre of water must be pouredinto the tankwith the salt.Whenever
the tank isfilled,always takecare toensure thatthe capisfirmlyclosed. Themixture ofwater anddetergent
must not get into the salt tank, as this would impair operation of the regeneration system. In this case
warranty cover will be forfeited.

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6SET-UP (Authorised technical staff only)
Set
-
up
During first start-up,the functions/parameters listed belowmust be setor adjusted.
Control Panel
Key to Symbols
On/off button
Total pump-out (tank -boiler) button
Regenerating salt symbol (only if softener is fitted)
Short programme button
Medium programme button
Long programme button
L1Short programme Led
L2Medium programme Led
L3Long programme Led
L4Drainage Led
L5Appliance on Led
L6No salt Led (only if softener is fitted)
Key to messages on display
CLOSE Close the door
FILL Machine preparing for cycle
End End of operation requested
PrF
400/500/CAP
Machine model
(viewed when the machine is started with master switch)
F x xx r xxx
Version/revision
of the installed
firmware.
(viewed when the machine is started with master switch, after themodel code)
UnLoad Pump-out
OFF Energized machine OFF

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Using the buttons
Button Short press Pressed for 2” Pressed for 5” Long press, release, press
again
Display temperatures
Boiler and tank On/OF
Door open and machine OFF.
Long press >>> display reads
“- -“ >>> release and press
again: Access Setup Menu (1)
Scroll through Setup
options (2) Start Pump-out Total pump-out (tank+boiler)
Set Short Programme Start Short Programme
Set Medium Programme Start Medium Programme
Set Long Programme Start Long Programme
Set P0(Empty tank) Start P0
Door closed
Peristaltic pumps in Manual
mode to prime pipes Reset to DEFAULT
parameters(1)
Technician user only
1) Restores the default parameters, for new settings see point(6.3)
A series of operations can be carried out when the dishwasher is first installed to customise it to the user's requirements.
6.1 Contents of display
The display provides the following information:
• Machine off but energized: OFF
• Machine on and ready for use: End/P1-P2-OP3
• Wash phase: ||||||||||
• Programming phase: See parameter programming section
• Error message: See error messages section
6.2 Note on display of temperatures
Temperaturesshownon thedisplaymightnotindicate theactualtemperatureinthetankand/or boilerduringheating-wait
about 1’ after the heating elements switch off to see the real temperature.
6.3 Parameter programming procedure (setup)
To modify the parameters, proceed asfollows starting with the appliance in “OF” status with the door open.
1) Switch the appliance using the On/OF button
2) Press and hold the button until the display shows “- -“ , release and press again.
3) Press the pump-out button to scroll through the parameters for modification
4) Modify the parameter by pressing button P1
5) During setup operations, thedescription and value oftheparameter alternate on the display.
6) Select the other parameters for modification in the same way and proceed as described above
7) To exit the setupmenu press andhold until thedisplay shows“OFF”, press P2 or P3 or wait atleast 3minutes
without pressing any key; in this way the machine automatically exits the setupmenu.

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6.4 Modifiable parameters
This table lists the model choice or programme and temperature option parameters.
Display
Settings available
Description
°b From 85° to 71° Boiler temperature
°t From 62° to52° Tank temperature
ri 0 – 2 gr/lt (in steps of 0,1) Rinse aid batching
dE
0
-
10 gr/lt
(0-3 in steps of 0,2; 3-10 in stepsof 1,0)
Detergent batching
St On - OF Auto-start:
washing programme starts when door is closed On enabled OF disabled
HA H0 – H6 Water hardness setting (see table 6.8 in the following pages)
Er On-OF Prolonged rinse at the end of the washing cycle (+8”).
CL On-OF Clean water cycle. On enabled OF disabled
TS On - OF Thermostop On enabled OF disabled
Fi
FS-EC
Starting the
machine
in FAST o
r
ECO
mode
(models without rinsing pump only)
Sr - Access Service menu (for Authorised Engineer only)
6.5 Adjusting detergent and rinse aid dispensing(only available on certain models)
6.5.1 Rinse aid – Grams/liter dosage (depends on model)- The display reads “ri”
Every time is pressed, the
value increases of 0,1 g/l up to a
max. of 2 g/l.
Default: 1,2 g/l.
6.5.2 Detergent - Grams/liter dosage (depends on model) - The display reads “dE”
Factory-set default value = 2 gr/lt.
From
0,0 g/l
to
3,0 g/l
every time
ispressed,thevalue increases
of 0,2 g/l.
Beyond 3,0 g/l every time is
pressed,thevalueincreases1,0g/l
up to 10,0 g/l (maximum value).

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6.6 Starting the peristaltic pumps in manual mode – rapid filling of detergent and rinse aid circuit
Energized dishwasher and full tank: press for 5 seconds buttons P2 +P3 simultaneously.
The peristaltic pumps work until P1 or P2 are pressed again; during the procedure the indicator lights stay on and
the display shows “rd”. The rinse aid circuit is filled in 7 minutes, the detergent circuit is filled in 2 minutes.
Sincethe pumps work atthe same time, onlythe rinse aid (blue tube in the rinse aidjerrycan) must bewithdrawn for
5 minutes, then the detergent(red tube in the detergent jerrycan) is withdrawn too for the last twominutes.
6.7 Adjusting the regeneration frequency (models with softener only)
See appliance setup menu (point 6.4)
With values over 60°dF
/33°dH
an external water treatment device must be used and the regeneration
frequency must be set at H0
6.8 Mains water hardness setting table
After a number of washing cycles corresponding to the set water hardness has been started, the dishwasher starts
automatically the resin regeneration cycle, that lasts about 90 seconds. During this phase the machine load or unloads
automatically, even though it isn’t performing a washing cycle.
Hardness
(°dH German degrees)
Hardness
(°dF French degrees)
Setting
level
Resin regeneration interval:
approximate number
of wash cycles
Regeneration off HA: 00 -----
8.5 15 HA: 152
11 20 HA: 02 128
17 30 HA_ 03 default 74
22.5 40 HA: 04 37
28 50 HA: 05 27
33.5
60
HA: 06 11
6.9 Extra rinse option (long rinse). -Display reads “E.r”
Rinse is 8” longer than the standard in every washing cycle.
Press to enable (On)/disable (OF)

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6.10 "Clean water cycle" option - Display reads “CL”
With this option clean water is used for every washing. At each cycle,
the washing water is completely drained and it is replaced with clean
water from rinsing.
Press to enable (On)/disable (OF)
6.11 “Thermostop” option - Display reads “tS”
“on” = the minimum temperature of rinse as set, independently from
the intake water temperature, the nominal duration of cycle may be
extended by a few seconds.
“off” = the minimum temperature of rinse may be a few degrees lower
than the set one, if hot intake water is not used.
Press to enable (On)/disable (OF)
6.12 Fast/eco starting option - Display reads “Fi”
Fast (FS): it allows to start the machine in less time than thestandard;
it involvesa greater water consumption atthe first start.
Eco starting (EC): the machine starts in standard time, without any
additional water consumption.
Press to enable (On)/disable (OF)

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7MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE TECHNICIAN)
The dishwasher is able to identify a number of malfunctionsand show them on the display. If the problem persists after the
dishwasher has beenswitched off andback on, proceed asdescribed below:
Er 01 The anti-flooding system has
been activated (for the
relevant models only).
Large waterleak: checkthe origin ofthe problem.
Er 04
Tank temperature probe
malfunction
Tank temperature probe disconnected or
not working.
Er 05
Tank water filling malfunction
-
The tank wasn’t filled in the expected time: check the water supply tap,
the
dynamic supply pressure, cleanliness of the inlet water filter, cleanliness of
the rinse nozzles, anydamage of the water charging hose. Ifthe problemstill
occurs during the “FILL”:
- Work level tank pressure switch damaged (it always detects “empty”: check
if the tank safety pressure switch starts operating).
-Leakagefromthetubeconnectedtotheairtrap;iftheproblemisnotsolved,
it occurs during the work program.
- vent valve of the drain pipe obstructed with dirt: with siphonage, the tank
gets completely empty at the end of a washing program.
Er 06
Water pump
-
out malfunction
Check:
- filter cleanliness; obstructions, bending and narrowing of the drain pipe.
- possible obstructions of the drain pump (blocked with a foreign body).
In case the problem isnot solved, please contact the After-Sales Service.
Er 23
Boiler does not heat up as
expected.
The problemmight occur because water iscontinually entering the tank (the
causes are as for “Er 05” – see above) 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 boilerempty:- damaged boiler
heating element – conta ctor failure - open on boiler safety thermostat side. -
boilertemperatureprobefaultyorincorrectlypositioned-motherboardrelay
failure,Important:Iftheboilerheatingelementisdamaged,thismightbedue
to operationwith nowater in the boiler,pressure switch continues togive full
reading even with boiler empty:check boiler air trap and/orrelative pressure
switch and replace if necessary.
Er 24
Boiler temperature probe
malfunction
Boiler temperature probe disconnected or not working
Er 25
Boiler water filling malfunction
The boiler wasn’t filled in theexpected time
:
check the water supply tap
,
the
dynamic supply pressure, cleanliness of the inlet water filter, any damage of
the water charging hose, or check the following in this order:
- faulty boiler pressure switch (it always detects“empty”),
- leakageor unbinding of the tube(waterrunsinside the tube)
- menu service wron setting “rP”
Er 26
Boiler emptying malfunction
-
check
cleanliness of therinse nozzles
- faulty boiler pressure switch (it always detects“full”)
- leakage or unbinding of the tube (water runs inside the tube)
- rinsing pump malfunction (if present)
Er 27
Boiler emptying malfunction
–
with
tank full
Or boiler full signal on models
without rinsing pump
Faulty boiler pressure switch
(
it
alwaysdetects“full”
).
If thisoccurs in models
without rinsing pump, the boiler pressure switch is wrongly detected: check
settings in the service menu on entry “rP”
“rp” = on for models with rinsing pump
“rp” = of for models without rinsing pump

15
8INSTRUCTIONS FOR THE USER
8.1 Control panel
Key to Symbols
On/off button
Total pump-out (tank -boiler) button
Regenerating salt symbol (only if softener is fitted)
Short programme button
Medium programme button
Long programme button
L1Short programme Led
L2Medium programme Led
L3Long programme Led
L4Drainage Led
L5Appliance on Led
L6No salt Led (only if softener is fitted)
Key to messages on display
CLOSE Close the door
FILL Machine preparing for cycle
End End of operation requested
PrF
400/500/CAP Appliance model (displayed when the appliance is switched on with the master switch).
UnLoad Pump-out
OFF Energized machine OFF

16
Using the buttons
Button Short press Pressed for 2” Pressed for 5”
Display of temperatures in
Boiler (L3) and tank (L1) On/OF
Start total drain (tank + boiler)
Start Short Programme
Start Medium
Programme
Start Long Programme
Set P0
Start programme P0: emptying of tank to clean filters.
Switch off and back on to allow reuse.
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 toswap the products; this might damage the dishwasher andcause
malfunctions.
Do not mix different detergents; this would damage the dispenser device. Failure to comply with this recommendation
leads to forfeiture of the warranty entitlement on the appliance’s water system.
Industrial dishwasher detergents may cause serious irritation. Comply carefully with the instructionsprovided by the
detergent producer on the pack.
Check
1. Turn on the mains
water tap (user)
2. The level of detergent
and rinse aid in the
containers.
3. That there is
regenerating salt in
the relative
container (if fitted).
4. That the filters are
in place, the spray
arms rotate, and
there are no foreign
bodies in the
dishwasher.
5. Switch on the
master switch (user):
the decimal points of
both digitsappear on
the display.

17
8.3 First use each day (tank and boiler empty)
Door closed and master switch on ON:
Press and hold for 2/3 seconds, Leds ON/OF light up and
the firmwareversionanderevisionaredisplayed(Fxxx rxxx…);
FILL is displayed afterwards.
Tank filling starts
.
When the tank is full the
display
reads
“
E
n
d
”
alternating with the last running program (End/P1).
Load the dishes and close the door
Select the program required by holding down one of the three
buttons required for about 2”; the Led of the program flashes.
During the wash, a series of vertical bars on display indicate the
progress of the selected program.
When the program is over, the program led stops flashing and
stays on, the display alternates the run program and “End” (ex.
P2/End).
Unload the
dishes
When the door is closed again, the system offers the last program run.
8.4 Choosing the program
SYMBOL PROGRAM TYPE OF DIRT DURATION (*)
Short Glasses and cups 1’30”
Medium Glasses, cups and plates with light dirt 2’30”
Long Very dirty dishes and cutlery 4’
(*) The cycle duration stated above is guaranteed if the appliance is connected tohot 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.

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If the door is opened when a program is in progress, the program is interrupted; when the door is closed
again theprogram must be restarted.
Power failure.
If the door is open when power is restored, the display reads “CLOSE” and “°t” flashes; the heating element
stays off for the user’s safety, in order to avoid the risk of burns.
Close the door to resume heating the water in the tank.
8.5 Changing the program
If the master switch is not turned off, the appliance sets on the
last programme performed. To change the program, press the
button of the desired program, the led flashes and the display
reads the program duration.
To confirm holddownfor about2”.
T
heled flashes and thewash
program starts.
Ifaprogrammeisalreadyrunning,itcanbechangedbyfirstswitchingtheappliancetopausestatus(bypressingoneofthe
buttons for 2”) and then selecting the programme required.