GE Profile JP938, Technical Service Manual

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Calibration Instructions
for the Inductive Sensors

Note: Calibration of the inductive sensors must
begin with the LF surface element and proceed in
a 

clockwise direction around the cooktop.  All of

the sensors 

must  be calibrated to complete the

calibration procedure.
•  Calibration of the inductive sensors 

must begin

within 15 minutes of applying power to the
cooktop.

1.  Clear everything from the top of the glass.

2.  Lock the control by pressing the control LOCK

key for 3 seconds.  The control LOCK LED will
turn ON.

3.  Enter tech mode by pressing the TIMER

ON/OFF, LF (+), and LR (+) keys at the same
time.  The TIMER window will flash the words
TECH MODE.

4.  Begin the calibration procedure by pressing the

TIMER ON/OFF, LF (+), and RF (+) keys at
the same time.  The TIMER window will flash
CAL and the LF surface element power win-
dow will flash the U symbol.

6.  Disconnect the power connector in the burner

box.

Caution: To avoid delivering an electric shock to
the new power board, place your hand on the
burner box for

 at least 2 seconds before reaching

for the new power board.

7.  Remove the new power board from the anti-

static bag and reconnect the 26-pin wire har-
ness, the main power connector, and the burner
box power connector to their original positions.

8. Examine the inside of the cooktop (heaters,

sensors, wires, and thermal wall) for anything
that does not look normal.

3.  Remove 5 screws and the ground screw from

the drop box cover and lower the cover.

26-Pin Cable

26-Pin Cable

26-Pin Cable

Main Power Connector

Main Power Connector

Main Power Connector

GEA00826

4.  Disconnect the main power connector in the

drop box.

5.  Disconnect the 26-pin ribbon cable from the

power board by pressing down on the latching
tabs of the header.

Power

Power

Connector

Connector

Power

Connector

9.   Prop the glass onto the back of the cooktop.

  Using one hand to lower the glass, use the
  other hand to connect the wire harness from
  the user interface to the 10-pin header on the

      logic board.

10. Lower the glass onto the burner box, being

sure not to pinch any wires between the frame
and the burner box.

11. Apply power to the cooktop. Once the cooktop

appears to be in working order, remove power
from the cooktop and insert all the screws to
secure the frame to the burner box.