GE General Electric Cooktop PP945 User Manual

GE Consumer & Industrial  
Technical Service Guide  
January 2007  
Prole  
30- and 36-in.  
Cooktops  
PP945  
GE  
Profile  
ON/OFF  
+
-
ON/OFF  
+
E
-
PP975  
ON/OFF  
+
-
ON/OFF  
+
12 IN  
-
9
IN  
6
IN  
HOT SURFACE  
CONTROL  
LOCK  
GE  
WARMING ZONE  
Profile  
ON/OFF  
ON/OFF  
ON/OFF  
+
-
+
+
+
-
+
-
12 IN  
-
9
IN  
6
IN  
ON/OFF  
ON/OFF  
CONTROL  
LOCK  
-
HOT SURFACE  
31-9149  
GE Appliances  
General Electric Company  
Louisville, Kentucky 40225  
Table of Contents  
Component Locator Views...........................................................................................................................................13  
Component Quick Reference Troubleshooting...................................................................................................20  
Control Features............................................................................................................................................................... 8  
Cooktop Components.....................................................................................................................................................15  
Cooktop Removal From Countertop........................................................................................................................15  
Daughter Relay Module (DRM)....................................................................................................................................16  
Diagnostics and Service Information......................................................................................................................20  
Dimensions and Clearances........................................................................................................................................ 7  
Electrical Requirements................................................................................................................................................. 6  
Element Hot Light Troubleshooting .........................................................................................................................22  
Element Resistance Troubleshooting......................................................................................................................21  
Glass Top .............................................................................................................................................................................15  
Heating Elements ............................................................................................................................................................18  
Installation .......................................................................................................................................................................... 6  
Introduction......................................................................................................................................................................... 5  
Nomenclature .................................................................................................................................................................... 4  
Operation Overview.........................................................................................................................................................12  
Relay Power Supply Module (RPSM).........................................................................................................................17  
Schematics and Wiring Diagrams............................................................................................................................23  
Warranty ..............................................................................................................................................................................27  
– 3 –  
Nomenclature  
Model Number  
P P 9 7 5 B M 1 B B  
Product Color  
Brand  
B = Black  
P = Prole  
S = Black Glass W/Stainless Trim  
W = White  
Conguration  
P = Cooktop  
Engr. Revision  
Model Year Designator  
Color Designator  
Feature Pack  
Designates Features - the higher  
the number, the more features  
Serial Number  
Mini Manual  
The rst two characters of the serial number  
identify the month and year of manufacture.  
Example:  
AM123456S = January 2007  
A - JAN  
D - FEB  
F - MAR  
G - APR  
H - MAY  
L - JUN  
M - JUL  
R - AUG  
S - SEP  
T - OCT  
V - NOV  
Z - DEC  
2007 - M  
2006 - L  
Nomenclature Tag  
2005 - H  
2004 - G  
2003 - F  
2002 - D  
2001 - A  
2000 - Z  
1999 - V  
1998 - T  
1997 - S  
1996 - R  
The letter designating  
the year repeats every  
12 years.  
The nomenclature tag of your cooktop  
is located on the bottom of the burner  
box. In addition to the model and serial  
numbers, this tag tells you the power  
ratings of the supply circuit for the  
cooktop.  
Example:  
T - 1974  
T - 1986  
T - 1998  
The mini-manual is located under the  
glass top, inside the control enclosure.  
– 4 –  
Introduction  
The new electronic cooktops make an eloquent statement of style, convenience, and kitchen planning  
exibility. The electronic touch controls are simple to understand and easy to operate–just read and touch.  
Model Number PP945  
GE  
Profile  
ON/OFF  
+
-
ON/OFF  
+
E
-
ON/OFF  
+
-
ON/OFF  
+
12 IN  
9
IN  
-
6
IN  
HOT SURFACE  
CONTROL  
LOCK  
Model Number PP975  
GE  
WARMING ZONE  
Profile  
ON/OFF  
ON/OFF  
ON/OFF  
+
-
+
+
-
+
-
+
12 IN  
-
9
IN  
6
IN  
ON/OFF  
ON/OFF  
CONTROL  
LOCK  
-
HOT SURFACE  
These cooktops include many helpful features:  
The controls lockout feature protects against power activation to a heating element during times of  
unintended usage or when cleaning the cooktop.  
The new warming feature keeps sauces and gravies warm (Model PP975).  
The information on the following pages will help you service these new electronic cooktops effectively and  
efciently.  
– 5 –  
Installation  
WIRING  
Electrical Requirements  
Built-in power leads are UL approved for connection  
GROUNDING SPECIFICATIONS  
to larger gauge household wiring. The insulation of  
these leads is rated at temperatures much higher  
than the temperature rating of household 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.  
Ground Path Resistance 0.10 Ω Max.  
Insulation Resistance 250K Ω Min.  
POWER SUPPLY REQUIREMENTS  
The cooktop must be connected to a supply circuit  
of the proper voltage and frequency as specied  
on the nomenclature tag. Wire size must conform  
to the National Electrical Code or the prevailing  
local code. The nomenclature tag is located on the  
bottom of the burner box.  
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.  
OVERCURRENT PROTECTION  
WIRING REQUIREMENTS  
Wall-Mounted Oven or Counter-Mounted Cooktops  
WARNING: This appliance must be properly  
grounded.  
NEC RATING  
MAXIMUM KILOWATT RATING  
All cooktops must be hard wired (direct wired)  
into an approved junction box. The junction box  
must be easily reached through the front of the  
cabinet where the cooktop will be located. Allow  
considerable slack in the conduit for serviceability.  
A “plug and receptacle” is not permitted on these  
products.  
208V  
4.2  
236V  
4.7  
240V  
4.8  
20 Amp  
30 Amp  
35 Amp  
40 Amp  
50 Amp  
6.2  
7.1  
7.2  
7.3  
8.3  
8.4  
8.3  
9.4  
9.6  
10.4  
11.8  
12.0  
The branch circuit load for 1 wall-mounted oven  
or 1 counter-mounted cooktop is the rating on the  
nomenclature tag of the appliance.  
You must use a 2-wire, 3-conductor, 208/240 VAC,  
60 Hertz electrical system. A white (neutral) wire  
is not needed for this unit. The cooktop must be  
installed in a circuit that does not exceed 125 VAC  
nominal to ground.  
The branch circuit load for a counter-mounted  
cooktop and not more than 2 wall-mounted ovens  
all supplied from a single branch circuit and located  
in the same roomshall be computed by adding the  
nameplate ratings on the individual appliances and  
treating this total as equivalent to 1 range.  
Refer to the nomenclature tag on your cooktop for  
the KW rating for your cooktop.  
– 6 –  
There must be 5 inches minimum vertical clearance  
between the cooktop bottom and any combustible  
surfaces.  
Dimensions and Clearances  
The following MINIMUM clearance dimensions must  
be maintained.  
13MAX. Depth of uprotected  
2MIN.  
overhead cabinets  
Clearance from  
cutout to side  
wall on the right  
of the unit  
5Min.  
Vertical Clearance  
30MIN.  
Clearance from  
15MIN. Height  
countertop to  
from countertop  
unprotected  
to nearest  
overhead  
cabinet on either  
surface  
side of unit  
2MIN. Clearance  
from cutout to  
side wall on the  
left of the unit  
Make sure the wall coverings, countertop and  
cabinets around the cooktop can withstand heat up  
to 200°F (93°C) generated by the cooktop.  
If a 30-inch clearance between the cooking  
surface and overhead combustible materials or  
metal cabinets cannot be maintained, a minimum  
clearance of 24 inches is required and the  
underside of the cabinets above the cooktop must  
be protected with not less than ¼-in. insulating  
millboard covered with sheet metal not less than  
0.0122 inches thick.  
Wall covering,  
cabinets and  
countertop must  
withstand heat  
up to 200°F(93°C).  
Overall Cooktop Dimensions - 36-in. Models  
20-7/8(21SS)  
Depth on Monogram ZEU36K  
36″  
is 21-1/4@ center.  
(36-1/8SS)  
3-1/4Front  
4-5/8Rear  
at the conduit  
location  
Cooktop  
6-1/4Rear  
on Model PP975  
& PP980  
Note: The junction box must be located where  
it will allow considerable slack in the conduit for  
serviceability.  
33-3/4″  
18-7/8″  
Overall Cooktop Dimensions - 30-in. Models  
16  
Min.  
29-3/4  
21-3/8(21-1/2SS)  
(29-7/8SS)  
3-1/4Front  
Install junction box so  
that it can be reached  
through the front of  
the cabinet.  
4-5/8Rear  
at the conduit  
location  
Cooktop  
6-1/4Rear  
on Model PP945  
& PP950  
33-3/4″  
18-7/8″  
– 7 –  
Control Features  
Features of your cooktop.  
ge.com  
Throughout this manual, features and appearance may vary from your model.  
WARMING ZONE  
ON/OFF  
ON/OFF  
ON/OFF  
ON/OFF  
PP975  
12IN  
9IN  
6IN  
ON/OFF  
CONTROL  
LOCK  
HOT SURFACE  
ON/OFF  
ON/OFF  
ON/OFF  
ON/OFF  
PP945  
12IN  
9IN  
6IN  
CONTROL  
LOCK  
HOT SURFACE  
Feature Index (Features and appearances may vary.)  
Single Surface Element  
Explained on page  
10  
10  
Dual Surface Element  
10  
Tri-Ring Surface Element  
11  
Warming Zone Surface Element  
Single Surface Element Control Pad  
Dual Surface Element Control Pad  
Tri-Ring Surface Element Control Pad  
Warming Zone Element Control Pad  
Control Lock Pad  
10  
10  
10  
11  
11  
9
Hot Surface Indicator Lights (one for each surface element)  
(Continued next page)  
– 8 –  
Using the surface elements.  
Your new Profile Cooktop makes an eloquent statement of style, convenience, and kitchen planning flexibility. Whether you  
chose it for its purity of design, assiduous attention to detail, or for both of these reasons—you’ll find that your Profile  
cooktop’s superior blend of form and function will delight you for years to come.  
The touch controls give you precise control of the surface elements. You can quickly switch between a steady low heat  
and full power or any setting in between. The information on the following pages will help you operate and maintain your  
cooktop properly.  
NOTE: Throughout this manual, features and appearance may vary from your model.  
About the radiant surface elements…  
The radiant cooktop features heating  
SURFACE  
COOKING  
NOTE: A slight odor is normal when a new  
cooktop is used for the first time. It is caused by  
the heating of new parts and insulating materials  
and will disappear in a short time.  
elements beneath a smooth glass surface.  
Cooktop temperatures increase with  
the number of surface elements that  
are on. With 3 or 4 elements turned on,  
cooktop temperatures are high. Always  
use caution when touching it.  
It is safe to place hot cookware (from  
the oven or surface) on the glass cooktop  
when the surface is cool. Never place  
cookware on the control area.  
Never cook directly on the glass.  
Always use cookware.  
The indicator lights will come on  
next to the Dual and Tri-Ring burners  
when activated. Lights also activate for  
the Control Lock feature when it is  
turned on. The indicator lights will  
go off when the surface element or  
feature is turned off.  
OFF CENTER  
Even after the surface elements are  
turned off, the glass cooktop retains  
enough heat to continue cooking. To  
avoid overcooking, remove pans from  
the surface elements when the food is  
cooked. Avoid placing utensils that could  
become hot or plastics that could melt  
on the surface element until it has cooled  
completely.  
Always center the pan on the surface  
element you are using.  
The appropriate HOT SURFACE indicator  
light will glow when its corresponding  
radiant element is turned on and will  
remain on until the surface has cooled  
to approximately 150°F.(66°C).  
DRAGGING  
Water stains (mineral deposits) are removable  
using the cleaning cream or full strength white  
vinegar.  
NOTE:  
Use of window cleaner may leave an  
iridescent film on the cooktop. The cleaning  
cream will remove this discoloration.  
Hot surface indicator light will:  
Come on when the surface element is  
turned on.  
Stay on even after the element is turned off.  
Glow brightly until the element has cooled  
below 150°F. (6C).  
Do not slide cookware across the  
control or cooktop surface because  
it can scratch the glass. The glass is  
scratch-resistant, not scratchproof.  
Don’t store heavy items above the cooktop.  
If they drop onto the cooktop, they can cause  
damage.  
Do not use the surface as a cutting board.  
Radiant Surface Elements  
The controls for the radiant surface  
elements allow for 11 different heat  
settings: Low, 1–9 and High. The heating  
element may not visibly glow at low heat  
settings.  
The surface heating element will cycle on  
and off to maintain your selected control  
setting.  
Each radiant surface element has a  
temperature limiter which protects the  
glass cooktop from getting too hot.  
(Continued next page)  
– 9 –  
Single Surface Element  
ON/OFF  
To turn off a single surface element,  
To turn on a single surface element:  
touch the ON/OFF pad again.  
Touch the ON/OFF pad, then touch  
the (+)/ (-) pad.  
Use the (+)/ (-) pad to choose the  
desired power setting. The control  
will beep each time a pad is touched.  
Dual Surface Element  
ON/OFF  
To turn on the surface elements:  
When the indicator light next to the  
pad is on, the large surface element is on.  
When it is off, the small surface element  
is on.  
Touch the dual surface element  
ON/OFF pad, then touch the (+)/ (-)  
pad.  
To turn the dual surface element off,  
touch the ON/OFF pad.  
Use the (+)/ (-) pad to set the desired  
power setting.  
Touch the  
pad once to alternate  
between large and small settings.  
Tri-Ring Surface Element  
ON/OFF  
To turn on the surface elements:  
When one of the three surface elements  
is on, the corresponding indicator light  
next to the pad will be lit.  
Touch the Tri-Ring surface element  
ON/OFF pad, then touch the (+)/ (-)  
pad.  
To turn the Tri-Ring surface element off,  
touch the ON/OFF pad.  
Use the (+)/ (-) pad to set the desired  
power setting.  
Touch the pad to alternate  
between 12 in., 9 in. and 6 in.  
settings.  
(Continued next page)  
– 10 –  
Using the surface elements.  
Warming Zone Surface Element (on some models)  
ON/OFF  
To turn on the warming zone surface  
element:  
Touch the warming zone ON/OFF  
pad, then touch the (+)/ (-) pad.  
Use the (+)/ (-) pad to choose a  
setting of H (High) or L (Low).  
To turn off the warming zone surface  
element, touch the ON/OFF pad.  
Error During Operation  
If an error occurs in the control  
operation, the cooktop operation will  
discontinue and the unit will shut  
down completely.  
If the cooktop will not operate, turn  
off the cooktop power at the circuit  
breaker or fuse box for one minute.  
After one minute, turn on the  
cooktop power at the breaker and  
again attempt to set the control to  
the desired cooking setting.  
To correct:  
Attempt to set the control to the  
desired cooking setting.  
If the cooktop fails to operate, call  
for service.  
Allow the cooktop to cool  
completely.  
After the cooktop cools, attempt to  
set the control to the desired  
cooking setting.  
How to Lock the Cooktop  
indicating that the cooktop is locked.  
If the cooktop is locked while the surface  
elements or timer are in use, they will  
CONTR  
OL  
IMPORTANT: As a convenience, you  
can lock the entire cooktop at any time  
when it is not in use or before cleaning.  
LOCK  
automatically turn off.  
Locking the cooktop will prevent surface  
elements from being turned on  
To unlock:  
accidentally.  
Touch and hold the CONTROL LOCK pad  
To lock the cooktop:  
again for 3 seconds.  
Touch and hold the CONTROL LOCK pad  
A three-beep signal will sound, and the  
for 3 seconds.  
Control Lock light will go out, indicating  
that the cooktop is unlocked.  
A three-beep signal will sound and  
the Control Lock light will turn on,  
(Continued next page)  
– 11 –  
Operation Overview  
DIGITAL CONTROL SYSTEM  
The digital control system consists of 3 circuit boards:  
1. The touch board (permanently adhered to the ceramic glass panel) senses user input, including control  
lockout, displays user settings, contains HOT lights and key touch beeper. It is the “Main” board for the  
system.  
2. The relay power supply module (RPSM), located inside the drop box, provides DC for touch board  
communications and to relays controlling the heating elements.  
3. The daughter relay module (DRM) with additional relays is located under the touch board. The touch  
board communicates with the RPSM board via 12-volt serial bus. The RPSM communicates with the DRM  
via individual 5-volt and 12-volt DC levels.  
There are no electronic sensors. Traditional-style sensors are located in the radiant elements providing over-  
temperature protection cycling and HOT lamp input to the RPSM board.  
ELEMENT CONTROL  
Each element is controlled by at least 2 relays. Both L1 and L2 are disconnected from the radiant elements  
during standby (except the HOT lamp limiter switch). The setup relays remain constantly energized during  
burner use. The cycle relays provide the duty cycling during non-HI settings. When non-Hi levels are  
selected, the burners’ cycle relay will cycle 3 times per minute. When higher levels are selected, some cycling  
of the element will occur due to the overtemperature limiter in the radiant element, which is in series with the  
relays.  
BURNER TOUCH KEYS  
In standby, only the ON/OFF keys (and LOCK key) should respond. The +, –, and pan-size keys should not  
respond until after the ON/OFF key has been touched rst.  
HOT LIGHT CHECK  
The HOT lights are LEDs within the touch board. They are commanded "on" via serial bus responses from the  
RPSM board to the touch board.  
A HOT light glows from two sources:  
1. Whenever a burner is activated, the HOT light is immediately on.  
2. When the temperature of a ribbon heating element exceeds 150°F (66°C), the HOT light is on. At  
temperatures over 150°F (66°C), the element's limiter switch closes, sending 240 VAC to the RPSM input at  
J21 and initiating the serial bus response.  
When the burner is cool to the touch and in standby, the HOT light should be off. When the burner is rst  
activated, HOT should glow immediately. If a burner has been on for approximately 1 minute (5 minutes for  
model JP975), then returned to standby, the HOT light should remain on until cool.  
Note: Due to the low wattage rating, the warming zone surface element (JP975) will not glow red even when  
on highest heat setting. The warming zone surface element (JP975) does not utilize an overtemperature  
limiter switch.  
DEMO MODE  
When 120 VAC is applied to the unit between the black and red leads, the touch board will operate normally,  
but the relays and elements are prevented from operating.  
– 12 –  
Component Locator Views  
Front View (Model PP945)  
Glass Top With Permanently Attached Touch Board  
Burner Box  
Relay Power Supply Module Drop Box  
Relay Power Supply Module (RPSM)  
Top View - Glass Top Removed  
Single Surface Element  
Dual Surface Element  
Daughter Relay Module  
Single Surface Element  
Tri-Ring Surface Element  
(Continued next page)  
– 13 –  
Front View (Model 975PP)  
Glass Top With Permanently Attached Touch Board  
Burner Box  
Relay Power Supply Module Drop Box  
Relay Power Supply Module (RPSM)  
Top View - Glass Top Removed  
Tri-Ring Surface Element  
Warming Zone Surface Element  
Single Surface Element  
Dual Surface Element  
Dual Surface Element  
Daughter Relay Module  
– 14 –  
Cooktop Components  
WARNING: Before servicing the cooktop, power  
must be removed from the cooktop by turning the  
power off at the circuit breaker.  
Glass Top  
Note: The ceramic glass top and touch board will  
be supplied as a complete assembly. If the touch  
board is damaged or defective, the entire glass top  
assembly must be replaced.  
WARNING: Sharp edges may be exposed when  
servicing. Use caution to avoid injury. Wear Kevlar  
gloves or equivalent protection.  
To replace the glass top:  
Caution: To prevent electrostatic discharge that can  
damage electronic controls, ground yourself to the  
metal burner box or use an ESD wristband.  
Cooktop Removal From Countertop  
To remove the cooktop from the countertop:  
1. Remove the cooktop from the countertop. (See  
Caution: The hold-down brackets and screws  
on the bottom of the burner box can damage  
the countertop surface. Use care to protect the  
countertop appearance.  
Cooktop Removal From Countertop.)  
2. Remove all screws along the top edge on all 4  
sides of the burner box.  
1. Remove screws that attach the hold-down  
brackets to the inside of the cabinet.  
Note: In the following step, it will be necessary to  
utilize 2 strips of wood or cardboard.  
2. Push upward on the bottom of the burner box  
approximately 4 in. and rotate slightly left or  
right (to the best working advantage). Shim  
under the burner box with protective wood or  
cardboard as shown.  
3. Slowly lift the front of the glass top (PP975),  
or the right side of the glass top (PP945),  
approximately 6 inches.  
4. With the glass top tilted at an angle, disconnect  
the wire harness that extends from the daughter  
relay module (DRM) to the user interface by  
pulling downward on the connector. Do not pull  
on the wires.  
3. Remove the mounting screw and hold-down  
bracket from each side of the cooktop.  
+
ON  
/O  
FF  
-
ofile  
+
+
ON  
12  
/O  
FF  
ON  
/O  
FF  
-
WA  
RM  
ING  
-
I
N
Z
ON  
9
IN  
+
E
6
IN  
O
N/  
OF  
F
HO  
T
S
UR  
FA  
CE  
-
CO  
NT  
RO  
LO  
CK  
L
+
ON  
/O  
FF  
-
Mounting  
Screw  
Connector  
Harness  
Model PP975 Shown  
5. Remove the glass top from the burner box. Place  
the glass top on a protected surface.  
– 15 –  
Note: The module is held in place by 4 retainers  
that lock the board in place using compression tabs.  
It may be helpful to remove the ink tube from an  
inexpensive ballpoint pen and place the barrel of the  
pen over each retainer to compress the tab.  
Daughter Relay Module (DRM)  
To replace the DRM:  
1. Remove the glass top. (See Glass Top.)  
2. Mark and disconnect wiring from the module.  
3. Compress the 4 tabs and lift the module from  
the recess in the burner box.  
Compression Tab  
Retainer  
Model PP975  
Model PP945  
– 16 –  
Note: The module is held in place by 5 retainers  
that lock the board in place using compression tabs.  
It may be helpful to remove the ink tube from an  
inexpensive ballpoint pen and place the barrel of  
the pen over each retainer to compress the tab. (See  
photo in Daughter Relay Module (DRM).)  
Relay Power Supply Module (RPSM)  
If the RPSM is damaged or defective, it can be  
accessed by opening the drop box that is under the  
cooktop.  
Note: If the drop box is inaccessible, it will be  
necessary to remove the cooktop from the  
countertop. (See Cooktop Removal from Countertop.)  
Place the cooktop upside down on a protected  
surface.  
4. Compress the 5 tabs and lift the module from  
the drop box cover.  
Caution:  
When reinstalling the cover on the drop box,  
ensure that the 2 insulating barriers are  
positioned inside the drop box and against the  
sides of the circuit board.  
To replace the RPSM:  
1. Remove the ve ¼-in. hex-head screws from the  
drop box cover.  
Make certain wiring is not pinched between the  
cover and drop box.  
Insulating Barrier  
2. Lift the cover up (or pull down if cooktop is  
installed) and rotate it towards the rear of the  
cooktop.  
Insulating Barrier  
Note: Make sure the 2 drop box cover tabs are  
engaged in the drop box before replacing screws.  
3. Mark and disconnect wiring from the module.  
– 17 –  
To remove heating elements:  
Heating Elements  
1. Remove the glass top. (See Glass Top.)  
2. Mark and remove the wires to the element.  
3. Lift the element off the springs.  
The radiant heating element consists of a ribbon-  
type resistance wire attached to the support  
insulation with molded ceramic walls in a corrosion-  
protected metal dish. On model PP975, the circular  
heating elements come in 5 sizes.  
Note: When installing the new heating element,  
make sure the 2 springs are on the 2 posts.  
Post  
Single Element  
Dual Element  
Spring  
Dual Element  
Tri-Ring Element  
6-in. Warmer  
On model PP945, the circular heating elements  
come in 3 sizes.  
Single Element  
Dual Element  
Tri-Ring Element  
(Continued next page)  
– 18 –  
4. Mark the numbers on the bottom of the element  
next to the tabs.  
5. Remove the two ¼-in. hex-head screws and  
tabs. Install them on the new element in the  
same numbered position.  
Tab  
Mark Number  
Mark Number  
Tab  
– 19 –  
Diagnostics and Service Information  
Component Quick Reference Troubleshooting  
Supply Voltage  
Wiring  
RPSM  
Touch Board  
DRM  
Element  
DEAD UNIT: Turn off circuit breaker, wait 30 seconds, and turn circuit breaker on. Proceed to tests below.  
DISPLAY CHECK: Turn burner on Level 8. All segments should light. Set 4 burners to 1, 2, 5, and 8. Check for  
proper digit displays. When power is rst applied, all the segments light in a sequence. Check for a consistent  
pattern, none missing or doubled up.  
VERSION DISPLAY: When the power is rst applied, after the display test sequence, the 4-digit version  
number of the touch board is momentarily shown in the display.  
TOUCH KEYS IN GENERAL: Keys should respond to a grounded surface on the glass of 0.350-inch diameter,  
which is the model for a nger. Keys should not respond to a grounded surface less than 0.130-inch  
diameter. Water, etc., on the keys may cause them to not respond correctly because of unwanted ground  
coupling. However, the OFF function will respond regardless of contamination. If the contamination is severe  
enough to completely prevent touch key response, supervisory functions will turn off the burner. Removing  
the contamination should restore proper key operation. After cleaning the keypad glass (ensure the keypad  
is clean and dry), wait 30 - 60 seconds for keypad sensitivity to stabilize. A gap or moisture between the  
touch board and glass will affect touch key performance. If this occurs, the glass assembly should be  
replaced.  
– 20 –  
Element Resistance Troubleshooting  
WARNING: The power must be disconnected from the cooktop.  
The resistance of certain elements and the continuity of certain element circuit wiring can be tested without  
removing the cooktop from its installation. This test will aid the service technician in determining if the RPSM  
or the DRM should be replaced. This test assumes the touch board functions properly.  
Model PP945  
Component  
Ohms  
Test Location  
Open Circuit Correction  
Left Rear 1100W  
Inner Element*  
RPSM J2 to K7 Orange  
Check Element and wiring.  
Both OK - replace RPSM  
50  
Left Rear 1300W  
Outer Element*  
RPSM J7-2 to K7 Orange  
RPSM J7-12 to K10 Yellow  
RPSM J7-1 to DRM K7 Blue  
RPSM J7-3 to DRM K7 Blue  
RPSM J7-4 to DRM K7 Blue  
RPSM J7-8 to K14 Brown  
Check Element and wiring.  
Both OK - replace RPSM  
43 Ω  
45 Ω  
52 Ω  
61 Ω  
53 Ω  
46.5 Ω  
Left Front 1200W  
Element*  
Check Element and wiring.  
Both OK - replace RPSM  
Right Front 1050W  
Inner Element**  
Check Element and wiring.  
Both OK - replace DRM  
Right Front 900W  
Center Element**  
Check Element and wiring.  
Both OK - replace DRM  
Right Front 1050W  
Outer Element**  
Check Element and wiring.  
Both OK - replace DRM  
Right Rear 1200W  
Element*  
Check Element and wiring.  
Both OK - replace RPSM  
Model PP975  
Component  
Ohms  
Test Location  
Open Circuit Correction  
Left Rear 1200W  
Element*  
RPSM J7-2 Orange/Black to K14 Orange  
Check Element and wiring.  
Both OK - replace RPSM  
46 Ω  
Left Front 1000W  
Inner Element*  
RPSM J7-4 Yellow/Black to K10 Yellow  
RSPM J7-1 Yellow/Red to K10 Yellow  
DRM J2 to K7 Gray  
Check Element and wiring.  
Both OK - replace RPSM  
56.2 Ω  
46.2 Ω  
51.5 Ω  
61.3 Ω  
52.3 Ω  
51.3 Ω  
42.8 Ω  
0.5 Ω  
Left Front 1200W  
Outer Element*  
Check Element and wiring.  
Both OK - replace RPSM  
Center 1050W  
Inner Element**  
Check Element and wiring.  
Both OK - replace DRM  
Center 900W  
Center Element**  
DRM J6-2 Gray/White to K7 Gray  
DRM J6-6 Violet to K7 Gray  
Check Element and wiring.  
Both OK - replace DRM  
Center 1050W  
Outer Element**  
Check Element and wiring.  
Both OK - replace DRM  
Right Front 1100W  
Inner Element*  
RPSM J7-8 Blue/White to K7 Blue  
RPSM J2 to K7 Blue  
Check Element and wiring.  
Both OK - replace RPSM  
Right Front 1300W  
Outer Element*  
Check Element and wiring.  
Both OK - replace RPSM  
Right Rear 120W  
Element*  
RPSM J7-12 Brown to J7-3 Brown/White  
Check Element and wiring.  
Both OK - replace RPSM  
* Requires opening the drop box.  
** Requires removing cooktop from it's installation and removing glass top.  
– 21 –  
Element Hot Light Troubleshooting  
Each element's hot light limiter switch and its wiring can be tested without removing the cooktop from its  
installation. This test will aid the service technician in determining if the element should be replaced. This test  
assumes the elements heat properly.  
All circuits below element's glass top temperature of 150°F (66°C) should test open. If circuit tests 0  
resistance, replace element.  
All circuits above element's glass top temperature of 150°F (66°C) should test 0 resistance. If open, check  
wiring and replace element, if necessary. Operate element, if necessary, then disconnect power before  
testing cooktop.  
Model PP 945  
Test Location  
Model PP 975  
Test Location  
Left Rear Element*  
Left Front Element*  
Right Front Element*  
Right Rear Element*  
RPSM J2 to J21-3  
RPSM L1 to J21-2  
RPSM L1 to J21-4  
RPSM J2 to J21-1  
Left Rear Element*  
Left Front Element*  
Center Element*  
RPSM L1 to J21-1  
RPSM L1 to J21-2  
RPSM L1 to J21-4  
RPSM L1 to J21-3  
RPSM L1 to J21-5  
Right Front Element*  
Right Rear Element*  
* Requires opening the drop box.  
– 22 –  
Schematics and Wiring Diagrams  
Model PP945 - Element 240 VAC Schematic  
WARNING: Disconnect electrical power before servicing.  
Caution: Label all wires prior to disconnection. Wiring errors can cause improper and dangerous operation.  
Verify operation after servicing.  
(Continued next page)  
– 23 –  
WIRING DIAGRAM MODEL PP945  
– 24 –  
MODEL PP975 - ELEMENT 240 VAC SCHEMATIC  
WARNING: Disconnect electrical power before servicing.  
Caution: Label all wires prior to disconnection. Wiring errors can cause improper and dangerous operation.  
Verify operation after servicing.  
(Continued next page)  
– 25 –  
WIRING DIAGRAM MODEL PP975  
– 26 –  
Warranty  
All warranty service provided by our Factory Service Centers,  
Staple your receipt here.  
Proof of the original purchase  
date is needed to obtain service  
under the warranty.  
®
or an authorized Customer Care technician. To schedule  
service, on-line, 24 hours a day, visit us at ge.com, or call  
800.GE.CARES (800.432.2737). Please have serial number and  
model number available when calling for service.  
For The Period Of: GE Will Provide:  
One Year  
From the date of the  
original purchase  
Any part of the cooktop which fails due to a defect in materials or workmanship. During this  
limited one-year warranty, GE will also provide, free of charge, all labor and in-home service  
to replace the defective part.  
Five Years  
From the date of the  
original purchase  
A replacement glass cooktop if it should crack due to thermal shock, discolor, or  
if the pattern wears off.  
A replacement radiant surface element if it should burn out.  
During this limited additional four-year warranty, you will be responsible for any labor or  
in-home service.  
What GE Will Not Cover:  
Service trips to your home to teach you how to use  
the product.  
Replacement of house fuses or resetting of circuit  
breakers.  
Improper installation, delivery or maintenance.  
Damage to the product caused by accident, fire, floods  
or acts of God.  
Failure of the product if it is abused, misused,  
or used for other than the intended purpose or  
used commercially.  
Incidental or consequential damage caused by possible  
defects with this appliance.  
Damage to the glass cooktop caused by use of cleaners  
other than the recommended cleaning creams and  
pads.  
Damage caused after delivery.  
Product not accessible to provide required service.  
Damage to the glass cooktop caused by hardened  
spills of sugary materials or melted plastic that  
are not cleaned according to the directions in  
the Owner’s Manual.  
EXCLUSION OF IMPLIED WARRANTIES—Your sole and exclusive remedy is product repair as provided in this Limited  
Warranty. Any implied warranties, including the implied warranties of merchantability or fitness for a particular purpose,  
are limited to one year or the shortest period allowed by law.  
This warranty is extended to the original purchaser and any succeeding owner for products purchased for  
home use within the USA. If the product is located in an area where service by a GE Authorized Servicer is not  
available, you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE  
Service location for service. 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 warranty  
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  
– 27 –  

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