Smeg SC371X-8 Manual page 15

Instructions for the user
FUNCTION KNOB
Turn the knob clockwise or anti-clockwise to select a function (some functions
are not present on all models) from the following options: (see 7. COOKING
WITH THE OVEN).
FUNCTION KNOB (on some models only)
In pyrolytic models, this light only comes on when the
automatic cleaning cycle is activated.
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