GE Profile JP938 How to use

C
C
PUB # 31-9070 01/01
MODEL SERIES:
TECHNICAL SERVICE GUIDE
GE Consumer Home Services Training
Electronic: JP938
JP968
Electric: JP340
JP350
JP930
JP960
Electronic Touch Control
&
Electric Manual Control
Cooktops

!
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by
individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair a
major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in
connection with its use.
WARNING
To avoid personal injury, disconnect power before servicing this
product. If electrical power is required for diagnosis or test
purposes, disconnect the power immediately after performing the
necessary checks.
RECONNECT ALL GROUNDING DEVICES
If grounding wires, screws, straps, clips, nuts, or washers used
to complete a path to ground are removed for service, they must
be returned to their original position and properly fastened.
GE Consumer Home Services Training
Technical Service Guide
Copyright © 2000
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.

– 1 –
Table of Contents
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications and Nomenclature5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Warranty Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Cooktop Features and Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Component and Connector Locator Views . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Quiz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
[[Title]]

– 2 –
Introduction
The new electronic cooktops make an eloquent
statement of style, convenience, and kitchen
planning flexibility. The electronic touch controls
are simple to understand and easy to operate–just
read and touch.
These cooktops include many helpful features. The
pan detection feature automatically shuts the
heating element OFF after 60 seconds of removing
a metallic pan from the heater. The pan sizing
feature adjusts the heated portion of the dual
element to fit the size of a metallic pan. And the
new warming feature keeps sauces and gravies
warm–or can be used as a normal heating element.
The controls lockout feature protects against
power activation to a heating element during times
of unintended usage or when cleaning the cooktop.
And the convenient kitchen timer can be used with
or without operating the heating elements to
simplify any kitchen task that requires a count-
down timer.
It’s easy to see how GE’s fresh ideas can make
anyone more creative in the kitchen!
The information on the following pages will help
you service these new electronic and electric
cooktops effectively and efficiently.

– 3 –
Installation
36-in. and 30-in. Cooktops
Refer to installation instructions. Installation
requires an 18-in. minimum distance from
cooktop to adjacent overhead cabinets. Units are
furnished with a 48-in. flexible armored cable.
Cooktop installation requires a 5-in. free area
between the bottom of the cooktop and any
combustible material, such as shelving. This 5-in.
area is not required when installing a wall oven
underneath the cooktop.
The 36-in. cooktops are approved for use over
GE 30-in. single wall ovens only. The 30-in.
cooktops are approved for use over select GE
27-in. and GE 30-in. single wall ovens.
Note: If installing with a GE Profile Performance™
or GE Profile™ Telescopic Downdraft System,
consult both cooktop and downdraft installation
instructions packed with the products before
installing. Cooktop electric supply may need to be
rerouted to install the downdraft ventilation.
Note: Consult the cabinet and countertop
manufacturer’s specs for flush-mount installation
prior to installing.
Electrical junction
box 16" MIN.
below countertop
30" MIN. to
unprotected
cabinet
Cut should not interfere
with cabinet structure
at front
1-3/4" MIN.
clearance to
side wall
from cut-out
1-1/2" MIN.
clearance to
side wall
from cut-out
18" MIN.
to cabinet
1-3/4" to
rear wall
13" MAX.
depth A
Cooktop
G
E
F
WD
Counter Installation Dimensions (in inches)
Required
Cooktop Dimensions (in inches)
GEA00791
Counter
Cutout (Min.)
WD A E FG
JP968WC/CC/BC 36 20-3/8 3-1/4* 33-7/8 19-1/8 2-1/2
JP960TC/CC/BC 36 20-3/8 3-1/4* 33-7/8 19-1/8 2-1/2
JP938WC/CC/BC 29-3/4 20-7/8 3-1/4* 28-1/2 19-5/8 2-1/2
JP930TC/CC/BC 29-3/4 20-7/8 3-1/4* 28-1/2 19-5/8 2-1/2
29-3/4 20-7/8 3-1/4* 28-1/2 19-5/8 2-1/2
JP340WC/BC 29-3/4 20-7/8 3-1/4* 28-1/2 19-5/8 2-1/2
*Depth of unit at conduit connection location (rear) is 6-1/4" on models JP968/938
and 4-5/8" on models JP960/930/350/340.
JP350TC/WC/CC/BC
Model
Dimensions (in inches)
of Front
ToEdge
Overall
GEA00792
Counter
Cutout (Min.)
WD A E F G
JP968SC 36-1/8 21 3-1/4* 33-7/8 19-1/8 2-1/2
JP960SC 36-1/8 21 3-1/4* 33-7/8 19-1/8 2-1/2
JP938SC 29-7/8 21-1/2 3-1/4* 28-1/2 19-5/8 2-1/2
JP930SC 29-7/8 21-1/2 3-1/4* 28-1/2 19-5/8 2-1/2
JP350SC 29-7/8 21-1/2 3-1/4* 28-1/2 19-5/8 2-1/2
Stainless Steel Cooktop Dimensions (in inches)
Model
*Depth of unit at conduit connection location (rear) is 6-1/4" on models JP968/938
and 4-5/8" on models JP960/930/350.
To Edge
of Front
Overall
GEA00793

– 4 –
Grounding Specifications
Ground Path Resistance 0.10 ohms Max.
Insulation Resistance 250K ohms Min.
Power Supply Requirements
The cooktop must be connected to a supply
circuit of the proper voltage and frequency as
specified on the rating plate. The rating plate is
located on the side of the component box. Wire
size must conform to the National Electrical
Code or the prevailing local code.
Overcurrent Protection for
Counter-Mounted Cooktops
208V 236V 240V
4.2 4.7 4.8
6.2 7.1 7.2
7.3 8.3 8.4
8.3 9.4 9.6
10.4 12.0
MAXIMUM KILOWATT RATING
NEC RATING
11.8
20 Amp
30 Amp
35 Amp
40 Amp
50 Amp
GEA00794
The branch circuit load for one counter-
mounted cooktop is the rating on the name-
plate of the appliance. The branch circuit load
for a counter-mounted cooktop and not more
than two wall-mounted ovens – all supplied from
a single branch circuit and located in the same
room – shall be computed by adding the name-
plate ratings on the individual appliances and
treating this total as equivalent to one range.
Wiring
Built-in power leads are U.L. approved for con-
nection to larger gauge household wiring. The
insulation of these leads is rated at temperatures
much higher than the temperature rating of house-
hold wiring. The current carrying capacity of a
conductor is governed by the temperature rating
of the insulation around the wire rather than the
wire gauge alone.
WARNING: Improper connection of aluminum
house wiring to these copper leads can result in a
serious problem. Use only connectors designed
for joining copper to aluminum and follow the
manufacturer’s recommended procedure closely.

– 5 –
Specifications and Nomenclature
Model Number
Serial Number
The first two numbers of the serial number
identify the month and year of manufacture.
Example: AZ123456S = January, 2000
A - JAN 2005 - H
D - FEB 2004 - G
F - MAR 2003 - F
G - APR 2002 - D
H - MAY 2001 - A
L - JUN 2000 - Z
M - JUL 1999 - V
R - AUG 1998 - T
S - SEP 1997 - S
T - OCT 1996 - R
V - NOV 1995 - M
Z - DEC 1994 - L
Note: The technical sheet is located under the
control panel.
The letter designating the
year repeats every 12
years.
Example:
T - 1974
T - 1986
T - 1998
J P 9 6 8 B C
Product
J = GE Cooking Product
Configuration
P = Cooktop Feature Pack
Designates features–the higher
the number, the more features.
Grate Type
C = Continuous
Glass Color
B = Black glass
The serial plate of your cooktop is located
on the bottom of the burner box. In addition
to the model and serial numbers, this plate
tells you the power ratings of the supply
circuit for the cooktop.
For specifications table, refer to Cooktop Features and Controls, page 11.

– 6 –
Warranty Information
What GE Will Not Cover:
• Service trips to your home to teach you
how to use the product.
• Improper installation.
• Failure of the product if it is abused, mis-
used, or used for other than the intended
purpose or used commercially.
• Damage to the glass cooktop caused by
use of cleaners other than the recom-
mended cleaning creams.
• Damage to the glass cooktop caused by
hardened spills of sugary materials or
melted plastic that are not cleaned accord-
ing to the directions in the Owner’s Manual.
• Replacement of house fuses or resetting of
circuit breakers.
• Damage to the product caused by accident,
fire, floods, or acts of God.
• Incidental or consequential damage to
personal property caused by possible
defects with this applicance.
This warranty is extended to the original purchaser and any succeeding owner for products purchased
for home use within the USA. In Alaska, the warranty excludes the cost of shipping or service calls to
your home.
Some states do not allow the exclusion or limitation of incidental or consequential damages. This war-
ranty gives you specific legal rights, and you may also have other rights which vary from state to state.
To know what your legal rights are, consult your local or state consumer affairs office or your state’s
Attorney General.
Warrantor: General Electric Company, Louisville, KY 40225
Sales slip or cancelled check is required as proof of original purchase date to obtain
service under warranty.
All warranty service is provided by our Factory Service Centers or an authorized Cus-
tomer Care® technician.
For The Period Of:
One Year
From the date of the
original purchase
Five Years
From the date of the
original purchase
Any part of the cooktop that fails due to a defect in materials or workman-
ship. During this full one-year warranty, GE will also provide, free of
charge, all labor and in-home service to replace the defective part.
Glass-Ceramic Cooktop, Ribbon Heating Elements and Rubber Seal, if
any of these parts should fail due to a defect in materials or workmanship.
During this limited additional four-year warranty, GE will replace the
defective part free of charge, you will be responsible for service trips and
labor charges.
GE Will Replace:

– 7 –
Cooktop Features and Controls
Throughout this manual, features and appearances may vary from the customer’s model.
The new Electronic Touch Control and Electric Manual Control Cooktops encompass over 20 models of
cooktops. They include 30-in., 4-burner and 36-in., 5-burner radiant glass cooktop configurations.
Feature Index
1. Frameless Glass Cooktop
2. Electronic Touch Controls*
3. Pan Detection*
4. Pan Sizing*
5. Control Lock-out*
6. Kitchen Timer*
7. Ribbon-Type Heating Elements
8. 7-in.Heating/Warming Element*
*Some Models, JP938 & JP968
JP968 (36-in.) Electronic Cooktop
JP938 (30-in.) Electronic Cooktop JP930 (30-in.) Electric Cooktop
Before replacing the cooktop, try using the
cooktop cleaning procedure outlined in the
Owner’s Manual, using the cleaning cream and
Scotch Brite®pad shipped with the product.
Note: When servicing the cooktop, care must be
taken not to scratch or damage the glass.
Ceramic Glass Surface
These cooktops feature a ceramic glass cooking
surface over an electric radiant surface element.
The electronic models feature touch controls on
this glass surface that take the place of control
knobs.
Appearance Defects
Scratches, marks from cooking utensils, discol-
oration, stains, spots, etc. can be caused by food
soils, cookware, cleaning solutions, or water
marks.

– 8 –
Bridge Element
The Bridge Element is made up of two 7-in.,
1800 watt elements plus an 800 watt element
between the two 7-in. elements.The elements
consist of a ribbon-type resistance wire attached
to support insulation with molded ceramic walls.
The digital control on the electronic models (or
the infinite heat switches on the electric models)
regulates the 7-in. units independently of each
other, or in combination when the bridge operat-
ing mode (or switch) is selected. The bridge and
the left front element are regulated by the same
controls.
GEA00902
RTD
RTD
800 Watt
Bridge
Element
Molded
Ceramic
Wall
7"-1800 Watt
Elements
Heating Element Systems
The Haliant Surface Element consists of a ribbon-
type resistance wire attached to the support insula-
tion with molded ceramic fiber walls in a corrosion-
protected metal dish.
These circular heating elements come in the three
sizes listed below.
4
4
Ceramic
Fiber
Molded
Element
Element
Ceramic Fiber
Element
Light
Hot Light
Ribbon Heating
Supporting
Insulation
Hot
Wall
6" 240 Volt-1200 Watts
7" 240 Volt-1500 Watts (6"-1000W., 9"-1500W)
9" Dual Unit 240 Volt 2500 Watts
6" Ribbon Heating
Molded Wall
Supporting
Insulation
9" Ribbon Heating
GEA00798

– 9 –
Electronic Touch Controls (Some Models,
JP938 & JP968)
The touch controls provide precise control of the
surface elements. You can quickly switch from a
steady low heat to full power or any setting in
between.
To turn ON a standard surface element, touch the
ON/OFF pad, then touch the (+) or (-) pad. The
surface element will energize to power setting 5.
Use the (+) or (-) pads to choose the desired
setting: L (low), 1-9, or H (high). The control will
beep each time the pad is touched. To turn the
surface element OFF, touch the ON/OFF pad
again.
To turn ON a 9-in. dual surface element, touch the
ON/OFF pad, then touch the (+) or (-) pad. The
small surface element will energize to power
setting 5. Touch the SIZE SELECT pad to energize
both large and small surface elements. Use the (+)
or (-) pads to choose the desired setting. To turn
the large surface element OFF, touch the SIZE
SELECTpad again.To turn both the large and
small surface elements OFF, touch the ON/OFF
pad.
To turn ON the bridge element, set the left front
surface element to the desired setting. Touch the
BRIDGE pad. The bridge element will energize to
the same level as the left front surface element
...or, touch the ON/OFF pad for the left front
surface element, then touch the BRIDGE pad.
The left front and bridge elements will both
energize to power setting 5. Using the (+) or (-)
pads will control the setting for both elements. To
turn the bridge element OFF, touch the BRIDGE
pad again. Touching the ON/OFF pad will turn
OFF both the left front and the bridge elements.
To turn ON the warmer surface element, touch
the ON/OFF pad, then touch the WARMER pad.
If the surface element is already in use, touch the
WARMER pad.The surface element will energize
to the warmer power setting W1. Use the (+) or
(-) pads to choose the desired warmer setting:
W1, W2, or W3.
To turn OFF the warmer power setting, touch the
WARMER pad again.The surface element will
remain ON in power setting L (low). To turn OFF
the surface element, touch the ON/OFF pad
again.

– 10 –
Indicator Lights
Lights will come ON next to the bridge, warmer,
dual unit, or control lockout pads when touched,
to indicate the surface element or feature is
energized. The light will go OFF when the sur-
face element or feature is turned OFF.
HOT SURFACE Indicator Lights
The HOT SURFACE indicator lights will glow
when any surface unit is turned ON and will
remain on until the surface has cooled to ap-
proximately 150°F.
Controls Lockout
Note: For your convenience, the entire cooktop
can be locked at any time.
To lock the cooktop, touch and hold the CON-
TROL LOCK pad for 3 seconds. A 2-beep signal
will sound, the word LOCK will appear in the
timer display, and the CONTROL LOCK light will
turn ON indicating the cooktop is locked. If the
cooktop is locked while the surface elements or
timer are in use, they will automatically turn OFF.
To unlock the cooktop, touch and hold the CON-
TROL LOCK pad again for 3 seconds. A
2-beep signal will sound and the light will go
out, indicating the cooktop is unlocked.
Locking the cooktop will prevent surface
elements from accidentally being energized by
children or pets. You may lock the cooktop
when not in use or before cleaning.
Kitchen Timer
Operate the timer using the pad below the timer
display. Touch the ON/OFF pad, then touch the
(+) or (-) pad to choose the desired time setting.
If the (+) or (-) pad is held for several seconds,
the timer will increase or decrease at a faster
rate. After choosing your desired time, the timer
will automatically start to count down from the
hours/minutes you have selected. When the
timer reaches 1 minute, the control will beep
once and the timer will display the remaining
time in seconds until 00:00. The control will then
beep twice every 5 seconds until the timer is
turned OFF.
Pan Detection
Note: For this feature to function properly, the
metallic pan must be at least 4 in. in diameter
and centered on the surface element. This
feature will not work with glass cookware and
must be turned OFF when glass cookware is
used.
The pan detection feature works in the following

– 11 –
Pan Size Sensor
Note: This feature is only for the dual unit
surface elements and functions only when the
pan detection feature is turned ON.
When a small pan is placed on the surface
element, the small surface element will activate.
When a large pan is placed on the surface
element, the small and large surface elements
will activate. This feature may be overridden for
a single cooking session while leaving the pan
detection feature ON.
To activate or deactivate this feature and the
pan detection feature, touch the PAN pad. The
light next to the PAN pad will go out, indicating
that both pan detection features are turned
OFF.
manner: after energizing one of the heating
elements, a pan must be placed on the surface
element within 60 seconds. If a pan is not placed
on the surface element within 60 seconds, the
surface element will turn OFF. If a pan is re-
moved from the surface element, the user has
60 seconds to replace it before the surface
element is automatically turned OFF. The power
level display will flash when the control on the
surface element detects the absence of a pan.
To activate or deactivate the pan detection
feature for all surface elements, touch the PAN
pad. A signal will sound and a light next to the
PAN pad will indicate whether the feature is
active. If the light is ON, then the pan detection
feature is ON. When the pan detection feature is
OFF, the pan sizing feature is also OFF.
Built-In CleanDesign Cooktops
JP350SC
JP968SC JP960SC JP938SC JP930SC JP350TC
JP968WC JP960TC JP938WC JP930TC
JP968CC JP960CC JP938CC JP930CC JP350CC
JP968BC JP960BC JP938BC JP930BC JP350BC JP340BC
Features
5 Ribbon
(1500W)
4400W 4400W 4400W 4400W
(1200W)
554441
!!
!!
!!
Appearance
SS
SS SS SS SS WW
WW WW WW WW WW
CC CC CC CC CC WW
BB BB BB BB BB BB
Frameless
36 36 30 30 30 30
45 44 38 38 38 35
Power/Ratings
9.6 9.6 8.1 8.1 7.7 6.4
208V 7.2 7.2 6.1 6.1 5.8 4.8
40 40 40 40 40 30
208V 40 40 40 30 30 30
™
GE
True White
JP340WC
JP350WC
Patterned White
Patterned Black
4 Ribbon
2 Ribbon (2000W)
GE Profile Performance Series ™
Ribbon Ribbon
GE Profile
Ribbon
Patterned Black
True White
Patterned White
Patterned Bisque
Patterned Black
4 Ribbon
2 Ribbon (1200W)
2 Ribbon (1200W)
2 Ribbon (2000W)
2Ribbon (2500W)
Patterned Black
True White
Patterned Bisque
Patterned Black
4 Ribbon
2 Ribbon (2500W)
2 Ribbon (1800W)
1 Ribbon (800W)
1 Ribbon (1200W)
1 Ribbon w/Warmer
1 Ribbon (800W)
2 Ribbon (1800W)
1 Ribbon (2500W)
4 Ribbon
Patterned Black
Patterned Bisque
True White
Patterned Black
Patterned BlackPatterned Black
Patterned White Patterned BisquePatterned Bisque
Patterned Black Patterned Black
5 Ribbon
1 Ribbon (2500W)1 Ribbon (2500W)
1 Ribbon w/Warmer 1 Ribbon (1500W)
2 Ribbon (1800W)
1 Ribbon (800W) 2 Ribbon (1800W)
1 Ribbon (800W)
1 Ribbon (1200W)
1 Ribbon (1200W)
Glass-ceramic surface
Number of elements
Dual 6"/9" heating elements
8" heating elements
7" heating element
7" heating elements
Bridge element
Total wattage
6" heating elements
Hot surface indicator lights
Electronic touch controls
Pan presence sensor
Pan size sensor
Color appearance*
Weights & Dimensions
Cooktop width (in inches)
Approx. shipping weight (lbs.)
KW rating @ 240V
Amps @ 240V
*SS = Stainless Steel, WW = White on white, CC = Bisque, BB = Black on black. GEA00806

– 12 –
Diagnostics
Table of Contents
Digital Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Triac Voltage Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pan Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Technician Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Fault Codes (F-codes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Line-In Voltage Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Temperature Check (in Celsius) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Frequency Check (in Hertz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Calibration of the Inductive Pan Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fault Code Behavior Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

– 13 –
• If the touch board is damaged, the entire glass
assembly must be replaced.
• If the display board is damaged, it can be
replaced by removing the glass top and discon-
necting the display board from the touch board.
• If the logic board is damaged, it can be replaced
by removing the glass top and removing the logic
board from the area under the keypad.
• If the power board is damaged, it can be ac-
cessed by removing the drop box cover that is
under the cooktop.
Note: No individual components on the boards
arereplaceable.
Triac Voltage Control
A triac-fired control replaces the usual rheostat
temperature control for each surface element. The
control receives feedback from the temperature
sensor to allow for precise control of the heating
elementpower.
Digital Control System
The control system consists of four circuit boards:
the touch board (which is permanently adhered to
the ceramic glass panel) that senses the user
input, the display board that contains the panel
displays, the logic board that contains the micro-
processor, and the power board that does the
power switching and control of the heating units.
GEA00807
Logic
Board
Power Board
Cover
Drop Box
Burner
Box
Ceramic
Glass With
Touch Board
Permanently
Adhered
Display
Board

– 14 –
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 BoardLogic BoardHeaterHeaterPan SensorPan 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.

– 15 –
Fault Codes (F-codes)
When a fault code (F-code) occurs, an alarm will
sound for 1 minute, the F-code will flash in the
timer display, and Fwill flash in the display in the
window of the failed surface element until acknowl-
edged by touching the CONTROL LOCK key. The
displays are then cleared. If the fault still exists, or
if it recurrs when the user tries to activate a sur-
face element, the F-code will redisplay.
Only the severest F-codes are immediately dis-
played. Less severe F-codes are recorded, then
displayed based on the number of repeated occur-
rences.
The Technician Mode allows the last 9 F-codes to
be recalled from the register and displayed on the
timer display. The most recent F-code is displayed
first (as #1). Pressing the TIMER (+) and TIMER
(-) keys will scroll up and down the last 9 recorded
F-codes.
The cooktop has multiple sensors, one for each
surface element. Some F-codes include a sensor
number associated with a surface element. The
illustration below shows the sensor/surface ele-
ment number for both cooktop configurations.
To clear the F-code register, enter Technician
Mode. While the timer display flashes TECH
MODE, simultaneously press the BRIDGE and
WARMER keys. The timer display will display
DONE and the F-codes will be permanently
deleted from the register.
Note: A complete fault codes table can be found
at the end of this section.
Line-In Voltage Check
To check the line-in voltage, press the timer ON/
OFF key while in Technician Mode. Line-in voltage
will appear in the timer display.
Temperature Check (in Celsius)
To check the temperature of a specific surface
element, press that element’s ON/OFF key while
in Technician Mode. C will display in the window of
the specific surface element and the temperature
will appear in the timer display.
1
2
5
34
5
4
2
1

– 16 –
Frequency Check (in Hertz)
To check the frequency of a specific pan sensor,
press the (-) key of that element while in Techni-
cian Mode. Hwill display in the window of the
specific surface element. The frequency will
appear in the timer display.
Calibration of the Inductive Pan Sensors
Calibration of the inductive sensors is performed
to permanently store the pan detection thresholds
in a new logic board that has never been cali-
brated. Calibration is also performed to update the
pan detection thresholds due to a physical change
in the pan detection circuit, wiring, or sensor.
Calibration of the inductive sensors is necessary
and must be performed when any of the radiant
surface elements (with an inductive sensor) are
replaced or when the logic board is replaced.
Note: The procedure for calibration of the induc-
tive sensors can be found in the Mechanical
Disassembly section.

– 17 –
Fault Code Behavior Table

– 18 –
Mechanical Disassembly
Table of Contents
Nonelectronic Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Glass and Cooktop Removal from Countertop . . . . . . . . . . . . . . . . . . . . . . . 19
Broken Glass Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
ON Light Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Switch Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
HOT SURFACE Light Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Burner Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Electronic Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Glass and Cooktop Removal from Countertop . . . . . . . . . . . . . . . . . . . . . . . 21
Touch Board and Cooktop Glass Replacement . . . . . . . . . . . . . . . . . . . . . . 22
Display Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Logic Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Power Board Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Calibration Instructions for the Inductive Sensors. . . . . . . . . . . . . . . . . . . . 24
Surface Element Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25