Smeg Sto 905 Instruction Manual

							 
 
User instructions   
 
46 
 
 
8 3/1 OPTION BUTTON   
Press this button to activate the option for use of 3/1 products. 
9 3/1 OPTION LIGHT   
Illuminates to indicate that the function is activated. 
10 
WASH-ZONE BUTTON 
Press this button to select the zone where you wish to concentrate the washing 
action. 
11 WASH-ZONE LIGHTS 
If one of the lights is on, the wash-zone washing system has been selected. 
12 PROGRAM DELAY BUTTON  
Press this button to delay the start of the program by up to 9 hours. 
13 INFORMATION DISPLAY  
 
 
 
 
 
 
						

							 
 
User instructions   
 
 
47  
  SETTING THE WASHING PROGRAM AND SWITCHING ON  To select the most suitable program for the dishes to be washed refer to 
the table below, which indicates the most appropriate program according 
to dish type and degree of soiling. 
 
 
  
 
 
After using the table to identify the most appropriate washing program:  • press the ON/OFF button (1) and wait for the PROGRAM 
INDICATOR LIGHT (2) to illuminate; 
•  keep pressing the PROGRAM SELECTION button (3) until the 
indicator light corresponding to the desired program illuminates; 
•  close the door; after about 2 the program will start. While it is in 
progress, the relative LIGHT will flash (indicating that the program is 
being executed). 
 
 
PROGRAMME  DURATION   CONSUMPTION (3)
NR SYMBOL NAME 
TYPE OF DISHES  AND DIRT 
PROGRAM DESCRIPTION 
 MINUTES (2)  
 WATER (LITRES) (1) 
 POWER (KWh) (2) 
DETERGENT GRAMS 
1 
 
  
SOAK Mixed dishes awaiting washing
Cold rinse (to prevent dirt from drying) 15 3,5 0,01 - 
2  
QUICK Dishes and glasses with  light dirt 
Wash at 38°C Cold rinse Rinse at 58°C 45 10 0,80 20 
3  
AUTO 50 Mixed dishes, normal dirt 
Cold prewash and hot wash (about 50°C) depending on type of dirt Cold rinse               Rinse at 68°C         Dry 
(**) (**) (**) 30 
4  
NORMAL 65°C 
Mixed dishes  and pans,  normal dirt 
Cold prewash Wash at 65°C Cold rinse Rinse at 68°C Dry 
105 14 1,30 30 
5  
STRONG and FAST 
Mixed dishes, normal dirt  which has not dried 
Wash at 65°C Cold rinse Rinse at 70°C 50 10 1,20 30 
 
 
						

							 
 
User instructions   
 
48 
 PROGRAMME  DURATION 
 CONSUMPTION (3)
NR SYMBOL NAME 
TYPE OF DISHES  AND DIRT 
PROGRAM DESCRIPTION 
 MINUTES (2)  
 WATER (LITRES) (1) 
 POWER (KWh) (2) 
DETERGENT GRAMS 
6 
 
  
DISH WARMER
Clean mixed dishes requiring rinsing and warming before taking to table  
Cold rinse Rinse at 68°C           Dry 40 3,5 0,70 - 
7 
 
CRYSTAL Crystal, porcelain and mixed dishes, light dirt 
Wash at 45°C Cold rinse Rinse at 68°C Dry 
70 10 0,90 20 
8 
 
BIO (*) EN 50242 Mixed dishes, normal dirt 
Cold prewash Extended wash at 53°C Cold rinse Rinse at 68°C Extended drying 
170 14 1,05 30 
9 
 
AUTO 60 Mixed dishes, very dirty 
Cold prewash and hot wash (about 60°C) depending on type of dirt Cold rinse Rinse at 70°C Dry 
(**) (**) (**) 30 
10 
 
SUPER Mixed dishes  and pans,  very dirty 
Prewash at  45°C Wash at 68°C 2 cold rinses Rinse at 70°C Dry 
110 16 1,50 10 + 30 (***) 
 Only run the soak program with half loads.  The WASH-ZONE (10) and 3/1 (8) options are available for all programs except soaking.  To execute programs 6,7,8,9,10 users must first press the extra programs button (6).  (*) Reference program as per EN 50242 standard.  (**) When the AUTO 50 or AUTO 60 program is selected, the dishwasher recognises the 
type of dirt and automatically adjusts the washing parameters as appropriate. 
 (***) 30 grams in the detergent dispenser + 10 grams in the tank.  (–) Not present.  (1) Average power consumption with the softener set on level 2.  (2) The cycle duration and power consumption may vary according to the water and 
      room temperatures, and the type and amount of dishes. 
 (3) The stated water and power consumption values refer to nominal conditions. Real 
values are affected by the type of load of dishes, room temperature and incoming water 
temperature. 
 
						

							 
 
User instructions   
 
 
49 
 
 
 The washing cycle will not take place if the dishwasher door is left open 
or not properly closed. 
 
 
3.2 Washing programs 
  
  
Before starting a washing program make sure that: 
• The water supply tap is open. 
• The correct amount of detergent has been added to the 
dispenser. 
• The baskets have been correctly loaded. 
• The spray arms are able to rotate freely and without 
obstruction. 
• The dishwasher door is securely closed.   
 
 
 
 
 
 
 
 CANCELLING THE CURRENT PROGRAM 
 •  To cancel the currently selected program, open the door and hold 
down the PROGRAM SELECTION (3) button for a few seconds until 
the indicator lights for programs 4 and 5 illuminate simultaneously. 
 
 
 
•  Close the door. 
•  After approximately 1 minute the dishwasher will advance to the end 
of cycle. 
 
						

							 
 
User instructions   
 
50   
 CHANGING THE PROGRAM  To change the program in progress, simply open the door and select a 
new program. When the door is closed the dishwasher will automatically 
select the new program.
 
 
 
 
 
 
SELECTING THE WASH-ZONE OPTION (available in all programs 
except the soak program) 
 
 
 Press button (10) in repetition to select the zone where you wish to 
concentrate the washing action, in the following order: 
 1)  right zone 65% - left zone 35% (right-hand light on); 
2)  right zone 35% - left zone 65% (left-hand light on); 
3)  both zones 50% (lights off). 
   
 
 
 
 
 
 
EXTRA PROGRAMS     Button (6) gives access to five extra programs in addition to the ones 
which can be selected directly using the program selector button. 
This button must be pressed (the light comes on) after selection of the 
main program (1, 2, 3, 4 or 5). 
This function is retained in the memory, so the button has to be 
pressed again (the light goes out) if the user wishes to execute one of 
the 5 main programs at the next cycle. 
 
  
 
 
 
 
 
 
						

							 
 
User instructions   
 
 
51   
 
 3/1 OPTION BUTTON (available in all programs except the soak 
program)  By pressing the button (8) you activate the 3/1 option, confirmed when 
the relative light comes on. This option has been studied for the use of  
dishwashing powder or tablets with integrated substances in place of  
regenerating salt or rinse-aid known on the market as “3 in 1” or “triple 
action” products; in this case the dishwasher will use the product in an 
optimal way avoiding salt and rinse-aid consumption, which could 
already be found in the dishwasher. 
 Note:  When selecting the 3/1 button, it is normal that the salt and 
rinse-aid lights remain on, if their containers are empty. 
 
 
 
 
 DELAYING THE PROGRAM (available in all programs except the 
soak program)  
 
The PROGRAM DELAY button (12) can be pressed to delay the start of 
the program by up to 9 hours. This means that the dishwasher can be 
operated at the time of day of your choice. Press the button several 
times in succession and the display will show the delay with which the 
appliance will start, beginning from 9 hours. The dishwasher will perform 
a dish pre-washing, and when finish, the “delay program” will enter in 
function as it was first set. 
 
 
  
 TO SAVE ON ENERGY! … AND PROTECT THE ENVIRONMENT  
• Always try to run the dishwasher fully loaded. 
• Do not wash the dishes in running water. 
• Use the washing program that is most appropriate for each type of 
load. 
• Do not carry out any preliminary rinsing. 
• If available, connect the dishwasher to a hot water supply up to 60°C. 
 
TO CUT DOWN ON DETERGENT CONSUMPTION! … AND PROTECT 
THE ENVIRONMENT  The phosphates contained in dishwasher detergents are harmful to the 
environment. To avoid using excessive amounts of detergent and to save 
on electricity, observe the following:  • separate the more delicate items from dishes that are more resistant 
to aggressive detergents and high temperatures; 
• do not pour  the detergent directly on the dishes.   
 
 
						

							 
 
User instructions   
 
52   
 
 
 
 
  
  ADJUSTING THE WATER SOFTENING SYSTEM  
 
N.B.: for the setting below to be possible, a washing program other than 
the soak program must be set.  Press the PROGRAM DELAY button (12) and keep it pressed until the 
preset value appears followed by a full stop (normally 3.). 
Release the button then press it again in succession to display the value 
required, referring to the table. 
 The 6 setting levels available will appear in this order: 
3., 4., 5., 0., 1., 2.. 
 When the value required appears on the display, release the button; 
after 5 seconds the system automatically returns to setting of the 
program delay, and the setting will be made with the chosen value. 
 N.B.: the display shows the water hardness setting and the program 
delay. The dot (.) after the number indicates that the water hardness 
setting is being displayed. If the dot (.) does not appear, the program 
delay is being displayed. 
 
 
WATER HARDNESS TABLE 
 WATER HARDNESS 
German Degrees (°dH) French Degrees (°dF) 
 SETTING 
0 - 5 0 - 9 0. 
6 - 11 10 - 19 1. 
12 - 21 20 - 36 2. 
22 - 33 37 - 59 3. 
34 - 45 60 - 79 4. 
46 - 53 80 - 107 5.    Contact your local water board for information on the hardness of your 
water supply. 
 
						

							 
 
User instructions   
 
 
53   
 
 
 
  
 If the door has to be opened while washing is in progress, the program 
will be interrupted. The relative light will keep flashing and a beeper will 
signal that the cycle has not been completed. When the door is closed 
the program will continue from where it was interrupted. This operation 
should only be carried out if strictly necessary, because it might 
cause problems in execution of the program.   
 
 
 END OF CYCLE 
 At the end of the program the beeper sounds briefly and the lights of 
programs 4 and 5 flash. 
 
 
 
 
 
To switch off the dishwasher, open the door and press the ON/OFF 
button (1). 
 
 
 
 
 
 REMOVING THE DISHES 
 At the end of the washing program, wait at least 20 minutes before 
removing the dishes, to allow them to cool down.  
 
 
						

							 
 
User instructions   
 
54  
4. Operating instructions  Once the dishwasher has been correctly installed, prepare for use as 
follows: 
 •  Adjust the water softening system; 
•  Add the regenerating salt; 
•  Add the rinse aid and detergent. 
 
4.1 Using the water softening system  
 
 
 
 The amount of scale contained in the 
water (water hardness index) can cause 
whitish staining on the dry dishes, which 
tend to become dull over time.  
The dishwasher is equipped with an 
automatic softening system which uses 
a special regenerating salt to reduce the 
hardness of the water. 
  
 
 
The dishwasher is factory set for water hardness level 3 (average 
hardness 41-60°dF – 24-31°dH).   
 When using water of medium hardness, the regenerating salt container 
should be refilled after approximately 20 washing cycles. The salt 
container can hold approximately 1.7 Kg of salt in grains. Some models 
are equipped with an optical no-salt indicator. In these models, the cap 
of the salt container contains a green float which descends as the salt 
concentration in the water drops. When the green float can no longer be 
seen through the transparent cap, the container must be topped up with 
regenerating salt. The container is situated at the bottom of the 
dishwasher. After removing the lower basket, unscrew the salt container 
cap by turning it anticlockwise and pour in the salt using the funnel 
supplied with the dishwasher. Before replacing the cap, remove any salt 
residues from around the opening. 
  
  
 • When using the dishwasher for the first time, in addition to the salt it 
is also necessary to add one litre of water to the container. 
• Each time the salt container is refilled, make sure that the cap is 
securely closed. The mixture of water and detergent must never 
penetrate the salt container, as this would compromise the operation 
of the regeneration system. In the event of this occurring, the 
warranty will be invalidated. 
• Only use regenerating salt specially formulated for domestic 
dishwashers. If using salt tablets, do not fill the container 
completely.  
 
						

							 
 
User instructions   
 
 
55  
 
 
  
  
 
• Do not use table salt as it contains insoluble substances which, 
over time, may damage the water softening system.  
• When necessary, refill the regenerating salt container before 
starting the washing program. In this way, the excess saline 
solution will be immediately removed by the water; the prolonged 
presence of salt water inside the tank may lead to corrosion.   
 
 Be careful not to confuse the salt and detergent packages; adding 
detergent to the salt container will damage the water softening system.   
 
 
 
4.2 Using the rinse aid and detergent dispensers 
 
  The detergent and rinse aid dispensers are on the inside of the door; 
rinse aid on the left and detergent on the right. 
 
 
 
 
 
 
  
 With the exception of the SOAK program, before every washing cycle it 
is necessary to add the required amount of detergent to the detergent 
dispenser. The rinse aid, on the other hand, should  only be added as 
required.    
RINSE AID
DETERGENT