GE Profile JP938, Technical Service Manual

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Pan Detection
The pan detection system includes a pan sensor,
an inductive sensor interface chip (ISIC) perma-
nently mounted on the logic board, and a signal
wiring harness connecting the sensor with the
ISIC.
GEA00766
Temperature Sensor Temperature Sensor Temperature Sensor Sensor Connectors Sensor Connectors Sensor Connectors
Logic Board Logic Board Heater Heater Pan Sensor Pan Sensor
The pan sensor determines the presence or
absence of a pan through a change in the mag-
netic field. When a metal pan is near the sensor,
the resonant frequency of the pan increases. This
information is passed to the ISIC, which deter-
mines a pan to be present. When the frequency
drops to a specified level, the ISIC determines the
pan to
not be present and turns the surface
element OFF after 1 minute.
Pan Size Feature
When the pan detection feature is active, the pan
size feature is also active. The pan size feature is
designed to automatically recognize the size of a
pan placed on the dual heater and energize one or
both cooking zones to match the size of the pan.
The pan size feature is overriden when the DUAL
key is pressed.
Technician Mode
To enter the Technician Mode, lock the cooktop by
holding the CONTROL LOCK key for 3 seconds.
The control will beep 2 times and the word
LOCK
will be displayed in the timer display. Press the
timer ON/OFF key and simultaneously press the +
keys of the LF and LR surface elements. The timer
display will flash
TECH MODE when the cooktop
is in Technician Mode.
To exit the Technician Mode, simultaneously press
the timer ON/OFF key and the (+) keys of the LF
and LR surface elements, or unlock the cooktop
by holding down the CONTROL LOCK key for 3
seconds. The control will beep 2 times and the
CONTROL LOCK LED will turn OFF.