GE JP938 Technical Service Manual

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GE JP938 Technical Service Manual Manual pdf 16 page image

– 14 –Pan DetectionThe pan detection system includes a pan sensor,an inductive sensor interface chip (ISIC) perma-nently mounted on the logic board, and a signalwiring harness connecting the sensor with theISIC.GEA00766Temperature SensorTemperature SensorTemperature Sensor Sensor ConnectorsSensor ConnectorsSensor ConnectorsLogic BoardLogic BoardHeaterHeaterPan SensorPan SensorThe pan sensor determines the presence orabsence 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. Thisinformation is passed to the ISIC, which deter-mines a pan to be present. When the frequencydrops to a specified level, the ISIC determines thepan to not be present and turns the surfaceelement OFF after 1 minute.Pan Size FeatureWhen the pan detection feature is active, the pansize feature is also active. The pan size feature isdesigned to automatically recognize the size of apan placed on the dual heater and energize one orboth cooking zones to match the size of the pan.The pan size feature is overriden when the DUALkey is pressed.Technician ModeTo enter the Technician Mode, lock the cooktop byholding the CONTROL LOCK key for 3 seconds.The control will beep 2 times and the word LOCKwill be displayed in the timer display. Press thetimer ON/OFF key and simultaneously press the +keys of the LF and LR surface elements. The timerdisplay will flash TECH MODE when the cooktopis in Technician Mode.To exit the Technician Mode, simultaneously pressthe timer ON/OFF key and the (+) keys of the LFand LR surface elements, or unlock the cooktopby holding down the CONTROL LOCK key for 3seconds. The control will beep 2 times and theCONTROL LOCK LED will turn OFF.