Thermador CES304FS - Manual (Page 32)

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Display Action Fault
F3 The cooking sensor is too hot. Move the pot to one side and extend the
cooking sensor. F3 disappears from the
display when the indicator is
acknowledged (by touching any symbol)
and the cooking sensor has cooled
sufficiently.
F4 Cookware is located too close to the
touch control zone.
Make certain that your cookware is
correctly positioned on the heating
element. Make certain that nothing hot is
coming in contact with the touch control
zone. Remove the object from the touch
control zone. Wait a few minutes until the
touch control zone has cooled off. If F4
appears after you turn on the unit, call
customer service.
F8 The heating element was in continuous
use for too long.
The automatic timeout has activated.
Touch any symbol.
You can now turn on the heating element
immediately.
The cooktop regulates the heating element temperature by turning the heat source
on and off; This means that the heat source beneath the heating element, which
gives off a reddish glow, may not always be visible. If you select a low heat setting,
the heat source is frequently off; at higher settings it is seldom off. The source turns
on and off even at the hottest setting.
You may hear a quiet hum when the heating elements are in the heating phase.
The heating elements may glow with different levels of brightness. Depending on the
angle from which you are looking at the heating element, this glow may be visible
over the marked edge of the heating element.
These are technical characteristics. They have no effect on quality and function.
Depending on the countertop that is present in the kitchen, an uneven gap between
the cooktop unit and the countertop can occur. For this reason, a flexible seal is
provided around the entire cooktop unit.
Glass ceramic may have uneven areas on the surface due to the nature of the
material itself. Because of the mirrorĆlike finish on the cooking surface, even
extremely small bubbles less than 1 mm in diameter may be visible. These bubbles
will not have any adverse effect on the operation of the cooktop nor on the durability
of the glass ceramic cooking surface.
Note