We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A numbered scale telling a machine how hard the local water is.
Also known as: Hardness level setting, Salt dosage setting
Dishwashers and some washing machines carry a water hardness setting that controls how much salt or softener is used. It is set once at installation from the local water supplier's figure, and leaving it at the factory default in a hard-water area is a common cause of limescale damage.
Tells the appliance the hardness of the local water supply so that it can dose salt or softener correctly.
Contexts: Electrical equipment
Is set at installation from the water supplier's published figure and is otherwise left at a factory default, which in a hard-water area leads to scaling.
Contexts: Electrical equipment
A numeral or a short bar of increasing height printed beside a setting control or in a display.