amzchef YL-IF7018S-5B5B3B1B Manuel D'instructions page 16

3. If you want to cancel the Boost during this 5 minutes, touch the "B" button for twice. The
heating zone will go back to "9" power stage. Or slide along the "—" to the left point, the
heating zone will go back to the power stage in which you touched.
or
Restrictions when using
The four zones were divided into two groups. In one group, if use boost on one zone, first
make sure that the other zone is working on/below power level 5. When you select one
zone and press 'boost' button, if the other zone is working above power level 5, the "P"
and "9" symbols will flash on the display of the selected zone and power level will be
automatically set as 9.
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