Smeg STO905 [18/35] En en user instructions

User instructions

3. 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.

3.1 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 Ð 24-31°dH).

When using water of medium hardness, the regenerating salt container

should be re lled 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  oat which descends as the salt concentration in the water

drops. When the green  oat 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 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  rst 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 re lled, 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 regenerating salt specially formulated for domestic dishwashers. If

using salt tablets, do not  ll the container completely.