Hoover HIFS85MCTT Manuel D'instructions page 15

If total power exceeds the limitation of 2.5kw, 3.0kw, 4.5kw, 6.5kw,7.4kw,
(depending on which level you've set), you are not able to increase power stage
of any zone.
If you increase it, the cooktop will beep 3 times and indicator will show a flashing
'Pn'. Thus you need to decrease power stage of other zones before increasing the
power of objective zone.
Power Limitation in centre and right zones
• Cooking zones are divided into two groups. Each group has a maximum
electricity loading of 3600 W.
• The limitation decreases the power to the other cooking zones.
• The heat setting display of the reduced zones changes between two levels.
e. g. if all zones are on, the biggest power level of three zones are decrease to
7-level, 7-level, 7-level.
In Group a both two zones can work at level 9 at the same time because they
are 3500 W in total.
In Group b if 3 zones are working, the max power level which each zone can
reach is 7. If the rear zone of the Group b is turned off, the other two zones can
reach at maximum power level 8.
If you want one of the zone of Group b works at the highest power level, only 2
zones should be tuned on. The hob automatically reduces the power of the first
zone you turned on.
Using the Boost
Boost is the function that one zone rising to a larger power in one second and
lasting for 5 minutes. Thus you can get a more powerful and faster cooking.
EN-14