Smeg Stc75 Instruction Manual

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4. Operating instructions 
Once the dishwasher has been correctly installed, prepare for use as 
follows: 
x  Adjust the water softening system; 
x  Add the regenerating salt; 
x  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 37-59°dF – 22-33°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 1.5 Kg of salt in grains.
The salt reservoir is in the bottom of the dishwasher. After removing the 
basket, undo the cap of the reservoir by turning it anticlockwise and pour 
the salt in using the funnel supplied with the dishwasher. Remove any 
salt residues around the opening before screwing the cap back on. 
xWhen 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.
xEach 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.
xOnly use regenerating salt specially formulated for domestic 
dishwashers. If using salt tablets, do not fill the container 
completely.
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xDo not use table salt as it contains insoluble substances which, 
over time, may damage the water softening system. 
xWhen 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 damagethe 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 detergenton 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
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							User instructions 
58ADDING THE RINSE AID 
The rinse aid helps the dishes dry faster 
and prevents the formation of scale 
deposits and staining; it is automatically 
added to the water during the final rinse 
cycle, from the container situated on the 
inner side of the door. 
To add rinse aid: 
x  Open the door. 
x  Open the door S.
x  Add the rinse aid until the container 
is full (approximately 140 cc). 
x  The optical level indicator O on the side of the cap should be 
completely obscured. Refill the rinse aid when the optical level 
indicator becomes clear again, or when the rinse aid warning light 
illuminates. 
x  Close the door S.
x  Use a cloth to remove any spillage of rinse aid which might lead to 
the formation of excess foam.
ADJUSTING THE RINSE AID DISPENSER SETTING 
The dishwasher is factory set for medium water hardness. However it 
possible to change the setting by turning the dispenser’s selector to the 
desired position: the amount of rinse aid dispensed is proportional to the 
selector position. 
xThe amount of rinse aid must be increased if the washed dishes 
appear dull or feature circular stains. 
xIf, on the other hand, the dishes are sticky or have white streaks, it 
is necessary to reduce the rinse aid setting. 
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59 ADDING THE DETERGENT
After adding the detergent, to close the lid slide it in the direction shown 
by the arrow as far as it will go then press gently to lock. During washing, 
the dispenser will be opened automatically. 
xUseonly detergents specially formulated for dishwashers. For 
optimal washing results it is important to use a good quality 
detergent.
xThe detergent packs must be sealed and stored in a dry place to 
prevent the formation of lumps which may negatively affect washing 
results. Once opened the detergent packs should not be kept for too 
long, otherwise the detergent loses its effectiveness.
xDo not use detergents formulated for washing dishes by hand, 
because they produce a great deal of foam and may negatively 
affect the operation of the dishwasher.
xAdd the correct amount of detergent. An insufficient amount of 
detergent will result in a partial removal of dirt from the dishes, 
whereas an excessive amount is wasteful and does not improve the 
washing results. 
xThe market offers liquid and powder detergents with differing 
chemical compositions, which may contain phosphates, or be 
phosphate-free but contain natural enzymes.
- Detergents containing phosphates are more effective against 
grease and starch at temperatures above 60°C.
-Enzymedetergents, on the other hand, are also effective at lower 
temperatures (from 40 to 55°C) and are more easily 
biodegradable. With enzyme detergents it is possible to obtain at 
low temperatures comparable results to those which can only be 
achieved at 65°C using traditional detergents.  
For the safeguarding of the environment we recommend the use of 
phosphate- and chlorine free detergents. 
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x3/1 Products
If you wish to use detergents which already contain salt and rinse 
aid, check whether your dishwasher is fitted with the 3/1 option 
button on the Controls description page and then refer to the 
section which explains how to use this function. 
If the button is not provided, we recommend the use of conventional 
products (separate detergent, salt and rinse aid), because with 
conventional washing cycles 3/1 products might create problems 
such as a white deposit, poor drying results and residues left on 
dishes.
The introduction of detergent into the rinse aid dispenser, even in 
liquid form, will damage the dishwasher. 
4.3 General warnings and recommendations 
Before using the dishwasher for the first time, it is advisable to read the 
following recommendations concerning dish types to be washed and 
their loading. 
There are generally no constraints on the washing of domestic dishes, 
but in certain cases it is necessary to take their characteristics into 
account.
Before loading the dishes into the baskets it is necessary to: 
xremove coarse food remains: e.g. bones, fish-bones, etc. which 
may clog the filter or damage the wash pump. 
xsoak pots and pans with burnt food residues in the bottom for 
easier removal.
There is no need to pre-wash the dishes under running water before 
loading them into the baskets since this only wastes water. 
Correct loading of the dishes helps ensure optimal washing 
results.
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WARNING!
xMake sure that the dishes are securely in place so that they cannot 
tip over or obstruct the rotation of the spray arms during the 
washing cycle. 
xDo not place very small objects in the baskets as these could fall 
and obstruct the spray arms or the wash pump. 
xContainers such as cups, bowls, glasses and pots should always 
be loaded with the opening facing downwards and with any cavities 
at an angle, to allow the water to drain out. 
xDo not stack dishes or place them in such a way that they cover 
one other. 
xDo not place glasses too close together because they may knock 
against each other and break, or there might be staining at the 
point where they touch. 
xWhen using detergent tablet, take care not to place large pans or 
dishes in the zone underneath the detergent dispenser, since the 
tablet might fall onto the dishes and fail to dissolve completely. 
MAKE SURE that the items being washed are dishwasher-safe. 
Items which are not dishwasher-safe: 
xWooden dishes, pots or pans: these may be damaged by the 
high washing temperatures. 
xHandcrafted items: these are rarely suitable for washing in a 
dishwasher. The relatively high water temperatures and the 
detergents used may damage them. 
xPlastic dishes: heat resistant plastic dishes must be washed in the 
upper basket. 
xDishes and objects in copper, tin, zinc or brass: these tend to 
stain.
xAluminium dishes: items made from anodised aluminium may 
lose their colour. 
xSilverware: silver items may stain. 
xGlass and crystal: in general, glass and crystal objects can be 
washed in the dishwasher. However, certain types of glass and 
crystal may become dull and lose their clearness after many 
washings. Therefore, for these items we recommend using the 
least aggressive program available. 
xDecorated items: the decorated objects available on the market 
are generally able to withstand washing in the dishwasher, 
although the colours may fade after a great many washes. If in 
doubt as to the fastness of the colours, it is advisable to wash just a 
few items at a time for approximately one month. 
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4.4 Using the baskets 
The dishwasher has a capacity of 7 place-settings, including serving 
dishes.
CAUTION: do not place items in positions where they prevent the 
detergent dispenser hatch from opening properly. 
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The basket is fitted with plate racks which can be stowed horizontal if 
required. 
CUTLERY BASKET 
Cutlery must be placed with the tips facing downward.
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5.  Cleaning and maintenance 
Before carrying out any work, always disconnect the appliance 
from the electrical power supply.
5.1 General warnings and recommendations 
Avoid the use of acidic or abrasive detergents. 
Clean the outer surfaces and door-lining of the dishwasher regularly 
using a soft cloth moistened with water or with a normal detergent 
suitable for painted surfaces. Clean the door gaskets with a damp 
sponge. Periodically (once or twice a year) it is advisable to clean the 
tank and gaskets, using a soft cloth and water to remove any deposits. 
CLEANING THE WATER INTAKE FILTER 
The water intake filter Alocated at the outlet of the water supply tap 
needs to be cleaned periodically. 
After having closed the water supply tap, unscrew the end of the water 
intake hose, remove the filter Aand clean it delicately under running 
water. Reassemble filter Ain its seat and carefully screw the water 
intake hose back into position. 
CLEANING THE SPRAY ARMS 
The spray arms can be easily removed for periodic cleaning of the nozzles, 
to prevent possible clogging. Wash them under running water and carefully 
replace them in their seats, checking that their rotary movement is in no 
way impeded.
To remove the orbital spray arm assembly, take hold of the longer arm and 
pull the orbital unit upward. Wash the arms under a jet of running water and 
return them carefully to their seat. After reassembly, check that the spray 
arms turn freely. Otherwise, check that they have been installed correctly. 
      
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65 To remove the top spray arm, take off the retainer ring-nut. Wash it in a 
jet of water and fit it into place correctly, checking that there are no 
impediments of any kind preventing it from turning freely.
     
CLEANING THE FILTER UNIT 
x  The central filter C should be inspected regularly and cleaned if 
necessary.  
x  To remove it, turn anti-clockwise and lift. 
x  Press the central filter D from below to extract it from the micro-filter. 
x  Separate the two parts of the plastic filter by pressing the body of 
the filter in the zone shown by the arrows. 
x  Remove the central filter by lifting it. 
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