steel G9F-4B Manuel D'utilisation page 131

Instructions for the user
11.4 Switching on the induction hob for the first time
Clean the hob with a damp cloth, and then dry the surface thoroughly.
Do not use detergent which risks causing blue-tinted colour on the glass surface.
When the hob is first switched on the displays of all the radiant elements light up simultaneously
displaying the symbols as shown in the figure; the displays will then switch off immediately without
emitting any sound.
If one or more knobs is not in "0" position when the hob is first switched on, the relative displays
light up as normal, but the radiant element will not work.
On turning the knob, the relative display will show the adjacent symbol, signalling the radiant
element failed to work. The element will only work properly again once the knob is returned to "0"
position and a new power value is set.
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