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A marking that lights when limescale removal is due.
Also known as: Limescale indicator, Calc clean light
A descale indicator lights after a counted number of cycles or a measured water throughput rather than by detecting scale. It is a prediction, so ignoring it does not mean the appliance is fine and clearing it does not mean the scale is gone.
Indicates that a descaling cycle is due, on kettles, coffee machines and steam appliances.
Contexts: Electrical equipment
Counts cycles or water volume rather than measuring scale, so it predicts rather than detects and can be both early and late.
Contexts: Electrical equipment
A droplet or kettle outline with small flecks or a spiral beside it, illuminated on a control panel.