GE General Electric Convection Oven ZSC 1000 User Manual

GE Consumer & Industrial  
Technical Service Guide  
JUNE 2006  
Advantium 120  
SCB 1000  
SCB 1001  
ZSC 1000  
ZSC 1001  
31-9141  
GE Appliances  
General Electric Company  
Louisville, Kentucky 40225  
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO  
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY.  
A. DO NOT OPERATE OR ALLOW THE OVEN TO BE OPERATED WITH THE  
DOOR OPEN.  
B. IF THE OVEN OPERATES WITH THE DOOR OPEN, INSTRUCT THE USER  
NOT TO OPERATE THE OVEN AND CONTACT THE MANUFACTURER  
IMMEDIATELY.  
C. MAKE THE FOLLOWING SAFETY CHECKS ON ALL OVENS TO BE  
SERVICED BEFORE ACTIVATING THE MAGNETRON OR OTHER  
MICROWAVE SOURCE, AND MAKE REPAIRS AS NECESSARY:  
1. INTERLOCK OPERATION.  
2. PROPER DOOR CLOSING.  
3. SEAL AND SEALING SURFACES (ARCING, WEAR AND OTHER  
DAMAGE).  
4. DAMAGE TO OR LOOSENING OF HINGES AND LATCHES.  
5. EVIDENCE OF DROPPING OR ABUSE.  
D. BEFORE TURNING ON MICROWAVE POWER FOR ANY TEST OR  
INSPECTION WITHIN THE MICROWAVE GENERATING COMPARTMENTS,  
CHECK THE MAGNETRON, WAVE GUIDE OR TRANSMISSION LINE AND  
CAVITY FOR PROPER ALIGNMENT, INTEGRITY AND CONNECTIONS.  
E. ANY DEFECTIVE OR MISADJUSTED COMPONENTS IN THE INTERLOCK  
MONITOR, DOOR SEAL AND MICROWAVE GENERATION AND  
TRANSMISSION SYSTEMS SHALL BE REPAIRED, REPLACED OR  
ADJUSTED BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE  
OVEN IS RELEASED TO THE OWNER.  
F. A MICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE  
FEDERAL PERFORMANCE STANDARD SHOULD BE PERFORMED ON  
EACH OVEN PRIOR TO RELEASE TO THE OWNER.  
– 3 –  
Table of Contents  
Blower Assembly ..............................................................................................................................................................32  
Capacitor and Diode .......................................................................................................................................................30  
Cavity Light..........................................................................................................................................................................29  
Components........................................................................................................................................................................22  
Component Access Chart ............................................................................................................................................22  
Component Locator Views...........................................................................................................................................15  
Control Boards and Panel Connections .................................................................................................................19  
Control Panel Assembly.................................................................................................................................................25  
Control Features............................................................................................................................................................... 8  
Convection Heater Assembly and Thermistor....................................................................................................35  
Damper Assembly............................................................................................................................................................32  
Demo Mode.........................................................................................................................................................................42  
Diagnostics and Service Information......................................................................................................................41  
Door Assembly...................................................................................................................................................................24  
Fault Codes..........................................................................................................................................................................42  
Fuse ........................................................................................................................................................................................29  
High Voltage Transformer ............................................................................................................................................31  
Humidity Sensor................................................................................................................................................................37  
Installation ...........................................................................................................................................................................14  
Introduction......................................................................................................................................................................... 6  
Left and Right Door Switch Assemblies..................................................................................................................38  
Lower Heater Assembly ................................................................................................................................................35  
Low Voltage Transformer .............................................................................................................................................28  
Magnetron and Magnetron TCO................................................................................................................................31  
Microwave Leak Test.......................................................................................................................................................43  
Noise Filter ...........................................................................................................................................................................30  
Nomenclature .................................................................................................................................................................... 5  
Oven Removal / Partial Removal...............................................................................................................................23  
Proof Feature......................................................................................................................................................................43  
Schematics and Wiring Diagrams............................................................................................................................44  
Speed Cook System.........................................................................................................................................................10  
Standard Test Load..........................................................................................................................................................42  
Turntable Motor.................................................................................................................................................................37  
Upper Heater and Oven Cavity TCOs......................................................................................................................33  
Upper Heater Assembly ................................................................................................................................................34  
Warranty ..............................................................................................................................................................................46  
– 4 –  
Nomenclature  
Model Number  
S C B 1 0 0 0 D B B  
GE Speedcook Technology  
SC =GE Prole  
ZS = Monogram  
Exterior Color  
BB = Black  
CC = Bisque  
SS = Stainless Steel  
WW = White  
Conguration  
B = Wall Oven  
C = Monogram Wall Oven  
Model Year Designator  
Model Designator  
1000 = Color Model  
1001 = Stainless Steel Model  
Serial Number  
The rst two characters of the serial number  
identify the month and year of manufacture.  
Nomenclature  
Example:  
AL123456S = January, 2006  
A - JAN  
D - FEB  
F - MAR  
G - APR  
H - MAY  
L - JUN  
M - JUL  
R - AUG  
S - SEP  
T - OCT  
V - NOV  
Z - DEC  
2006 - L  
2005 - H  
2004 - G  
2003 - F  
2002 - D  
2001 - A  
2000 - Z  
1999 - V  
1998 - T  
1997 - S  
1996 - R  
1995 - M  
The letter designating  
the year repeats every  
12 years.  
Example:  
The nomenclature plate is located  
on the inside door frame.  
T - 1974  
T - 1986  
T - 1998  
The mini-manual is located behind  
the small access panel on the left  
side of the oven.  
– 5 –  
Introduction  
The new Advantium oven uses breakthrough Speedcook technology to harness the power of light. The  
Advantium oven cooks the outside of foods much like conventional radiant heat, while also penetrating the  
surface so the inside cooks simultaneously. While halogen light is the primary source of power, a "microwave  
boost” is added with certain foods. Foods cook evenly and fast, retaining their natural moisture.  
Features and Benets  
Speedcook Oven - Delivers oven quality food up to four times faster than a conventional oven. No  
preheating required.  
True European Convection Oven - 1500 watt convection oven mode bakes and roasts at temperatures  
ranging from 80 to 450°F.  
Sensor Microwave Oven - 975 watt sensor microwave oven mode automatically delivers perfect cooking  
results.  
Warming Oven - Keeps prepared foods warm and fresh, and retains perfect moistness and crispness.  
Proof Feature - Specialized mode allows dough to rise quickly.  
16-in. Turntable - Removable metal and glass trays easily handle large casserole dishes.  
Rounded Rear Wall - Allows complete turntable rotation of 9-in. x 13-in. casserole dish for even cooking.  
Installation Flexibility - Fits either a 27-in. x 30-in. wall oven cabinet (installation kit included).  
Pre-programmed Recipes - Provide quick and easy programming of over 175 speedcook food selections.  
Multi-Level Cooking - Removable rack allows cooking of multiple dishes at once.  
Non-Stick Cooling Tray - 16-in. Speedcook tray cleans up easily.  
(Continued Next Page)  
– 6 –  
MICROWAVE  
N
O
L
E
C
T
OVEN  
R
U
T
START  
PAUSE  
BAKE  
BROIL  
FAVORITE  
RECIPES  
SPEED  
COOK  
BACK  
HELP  
COOK  
EXPRESS  
REHEAT  
WARM  
PROOF  
CUSTOM  
POWER  
TEMP  
DEFROST  
TIMER  
CLEAR  
OFF  
OPTIONS  
SPEED COOK  
P
R
E
R
E
S
T
E
N
S
T
Turntable  
The turntable must always be in  
place, on the oven floor, for all  
Upper Halogen Lamp/Ceramic Heater  
Operates when using speedcook or  
broil.  
cooking. Be sure the turntable is  
seated securely over the spindle  
in the center of the oven.  
Window  
Allows cooking to be viewed while  
keeping microwaves confined in  
the oven.  
Non-stick Metal Tray  
Put food directly on the non-stick  
metal tray and place on the turntable  
when using the speedcook and bake  
features.  
Door Handle  
Pull to open the door. The door  
must be securely latched for the  
oven to operate.  
Wire Oven Rack and Aluminum  
Baking Sheet  
Door Latches  
Put food directly on the aluminum  
baking sheet on the wire oven rack,  
and place them on the non-stick  
metal tray, when baking on two levels,  
broiling or toasting foods.  
Lower Ceramic Heater  
Operates when using speedcook.  
Control Panel  
The pads used to operate the oven  
are located on the control panel.  
Clear Glass Tray  
Place on the turntable when using  
the microwave features. Place food or  
microwave-safe cookware directly on  
the tray.  
Rear Convection Heat Element  
Operates when using bake.  
– 7 –  
Control Features  
With your Advantium oven, you can cook with high-intensity halogen lights, ceramic heaters and convection heating  
element, and/or conventional microwave energy.  
O
OVEN  
MICROWAVE  
START  
PAUSE  
FAVORITE  
RECIPES  
BAKE  
BROIL  
SPEED  
COOK  
BACK  
HELP  
COOK  
EXPRESS  
REHEAT  
WARM  
PROOF  
CUSTOM  
POWER  
TEMP  
DEFROST  
TIMER  
OPTIONS  
CLEAR  
OFF  
SPEED COOK  
LOCK/UNLOCK  
HOLD SECONDS  
5
SPEEDCOOK/Repeat Last  
Press this pad to access the pre-set  
speedcook menu. Press and hold for  
3 seconds to repeat the last cooking  
selection.  
Display  
Shows and instructs the use of all  
features on the oven.  
SELECTOR DIAL–Turn to select, Press  
to enter First turn, then press the dial  
to make option, food power level or  
temperature selections. Also use the  
dial to increase (turn clockwise) or  
decrease (turn counterclockwise)  
cooking times.  
BAKE/BROIL  
Press this pad to bake, broil or toast.  
CUSTOM SPEEDCOOK  
Press this pad to set your own  
speedcook program.  
START/PAUSE  
Press this pad to start or pause any  
cooking function.  
WARM/PROOF  
Select WARM to keep hot, cooked  
foods at serving temperature.  
Select PROOF to set for a warm  
environment useful for rising  
yeast-leavened products.  
CLEAR/OFF  
Press this pad to cancel ALL oven  
programs except the clock and timer.  
BACK  
COOK (Microwave)  
Press this pad to step back one or  
more levels in the program process,  
such as when entering custom  
recipes.  
Press this pad to microwave food that  
is not in the FAVORITE RECIPES  
section.  
EXPRESS (Microwave)  
HELP  
Press for 30 seconds of microwave  
cooking time. Each time the pad  
is pressed adds an additional 30  
seconds to the remaining cooking  
time. The oven starts immediately.  
Press this pad to find out more about  
your oven’s features.  
POWER/TEMP  
During cooking, press this pad  
and turn/press the selector dial  
to change the microwave power  
level, the convection bake  
DEFROST (Microwave)  
Press this pad to defrost, soften or  
melt frozen foods.  
temperature or the speedcook  
temperature by adjusting the upper  
and lower lamp and heater settings.  
REHEAT (Microwave)  
Press this pad to reheat servings of  
previously cooked foods or a plate of  
leftovers.  
OPTIONS  
Press this pad to set the Clock  
and access the Beeper Volume, Clock  
Display ON/OFF, Display Scroll Speed,  
Delay Start and Reminder features.  
FAVORITE RECIPES  
Press this pad to add, edit (change)  
or remove a recipe from the memory.  
TIMER  
Press this pad to set the minute  
timer.  
(Continued Next Page)  
– 8 –  
To remind you that you have food in the oven, the  
oven will display COOK TIME COMPLETED and beep  
once a minute until you either open the oven door  
or press the CLEAR/OFF pad.  
Cooking Times  
When speedcooking preprogrammed  
foods, you may see OPTIMIZING COOK  
TIME in the display several seconds after  
you press START/PAUSE. The oven  
automatically senses the electrical  
voltage level in your home and  
ORITE  
adjusts the cooking time up or  
down for proper cooking.  
CIPES  
MER  
Fan/Vent  
The fan will be on during cooking. At  
the end of cooking, the automatic fan  
may continue to run for a short time, and  
the display will read Oven is Cooling. The  
fan will automatically shut off when the  
internal parts of the oven have cooled.  
The oven vent will emit warm air while  
the oven is on.  
Lights  
When the oven is on, light may be visible  
around the door or outer case.  
The halogen lights will dim and cycle  
on and off during a speedcook cycle,  
sometimes even at full power levels.  
This is normal. The oven senses the  
heat level and adjusts automatically.  
Oven Heat  
No preheating time is required during  
Speedcook cycles. The oven begins  
cooking immediately.  
The door and inside of the oven will be  
very hot. Use caution when opening the  
door and removing food.  
Do not use cookware or coverings made  
of paper, plastic, or foil when cooking  
during a speedcook cycle.  
When cooking for an extended period  
of time, the oven may automatically  
reduce the power levels to maintain  
the appropriate level of oven heat.*  
Sounds  
Clicks and a fan blowing are normal  
sounds during cooking. The relay board  
is turning components on and off.  
* This occurs during speed cook only when the  
cavity temperature approaches 425°F.  
– 9 –  
Speed Cook System  
Halogen Lamp and Ceramic Heaters  
One 500 watt halogen bulb and one 700 watt ceramic heater cook food from above.  
One 375 watt ceramic heater cooks food from below.  
Rear Convection Heat Element  
Operates when using bake.  
Microwave  
A microwave “boost” is automatically added with certain foods.  
The oven can also be used as a 975 watt microwave oven  
(Continued Next Page)  
– 10 –  
Speedcook Power Levels  
Lower Heater  
Advantium uses power from a high-intensity  
halogen light, ceramic heaters, and microwaves  
to cook food from the top, bottom, and interior  
simultaneously, sealing in moisture and avor.  
The lower heater is a 375 watt ceramic heater.  
It operates in speedcook, oven/bake, and warm  
modes. The lower heater assists in browning foods  
on the bottom.  
When using preset Speedcook recipes on the food  
menu, power levels are preselected. However, these  
power levels can be adjusted before or during  
cooking. Also, the manual cook feature allows you  
to speed cook items not on the preset food menu  
by selecting your own cook time and power level  
settings.  
Microwave Energy  
Caution: When cooking in Microwave mode, always  
use the glass tray.  
The Advantium 120 provides 975 watts of  
microwave power, which is delivered directly  
into the oven cavity to work independently, or in  
conjunction with other cooking cycles. As the food  
rotates on the oven turntable, microwave energy is  
evenly distributed to all portions of the food.  
Each power level alternates heater power and  
microwave energy throughout the cook time.  
Percentage times of each power source vary,  
dependant upon which power level has been  
selected. The halogen light and ceramic heaters will  
cycle on and off during a speedcook cycle, even  
when full power has been selected.  
Sensor Cooking  
Advantium’s Microwave mode features sensor  
cooking, which automatically selects cook times  
and power levels. A humidity sensor detects the  
increasing humidity released during cooking, senses  
when the food is done, and shuts the oven off at the  
appropriate time. Sensor cooking is not available for  
5 minutes immediately following Speedcook.  
UPPER POWER (U) controls both the upper heating  
assembly and microwave power. A higher UPPER  
POWER setting will utilize more upper heater power,  
browning food faster on top. A lower UPPER POWER  
setting utilizes more microwave power, causing food  
to cook more evenly throughout. Select a higher  
setting for such foods as pizza and baked goods.  
Select a lower setting for foods such as casseroles,  
meats, and sh.  
Voltage Compensation  
Note: Voltage compensation only occurs when  
using a preselected menu item in Speedcook. These  
items require compensation for accurate and  
consistent cooking results.  
LOWER POWER (L) controls the lower heater. Select a  
higher setting to brown foods more on the bottom.  
Select a lower setting for less browning on the  
bottom.  
Voltage uctuations in the power supply can cause  
inconsistencies in cooking. The main PCB measures  
line voltage at the start of each Speedcooking  
selection and adjusts the cooking time to achieve  
consistent results. Optimal line voltage, where no  
voltage compensation occurs, is 120 VAC. Above  
120 VAC, time is subtracted from the recipe. Below  
120 VAC, time is added to the recipe. The amount of  
voltage compensation required is dependent upon  
the incoming voltage at the start of the cooking  
cycle and the particular speedcooking selection that  
is chosen.  
Refer to the Speedcook Power Level Chart in  
this chapter for specic power source operating  
percentages.  
Upper Heaters  
The upper heating assembly consists of a 500 watt  
halogen heater and a 700 watt ceramic heater. The  
halogen and ceramic heaters provide radiant heat,  
which browns the outside of the food while sealing  
in moisture and avor. These heaters only operate in  
the speedcook mode and always cycle on and cycle  
off at the same time.  
The convection heater, located at the rear of the  
oven, operates when using bake mode.  
(Continued Next Page)  
– 11 –  
The following chart shows the predicted  
Thermal Compensation  
compensation times based on a 12-minute  
speedcook selection (such as Biscuits, Refr; Large).  
Note: Thermal compensation only occurs when  
using a preselect menu item in Speedcook. These  
items require compensation for accurate and  
consistent cooking results.  
Voltage Compensation Chart  
When cooking several food items consecutively, the  
temperature in the oven may become very high.  
When Speedcooking, the Advantium automatically  
compensates for the increased temperature by  
reducing the amount of time the upper and lower  
heaters are on during each 32-second duty cycle.  
Voltage  
108  
110  
112  
114  
116  
118  
120  
122  
124  
126  
128  
130  
132  
Time Change (Seconds)  
+180  
+150  
+120  
+90  
+60  
+30  
0
At the start of each new Speedcooking operation,  
the cavity thermistor reads the oven temperature  
and sends this information to the main PCB board.  
If the oven temperature is 150°F or higher, the  
main PCB board will initiate thermal compensation.  
Thermal compensation will reduce the amount of  
time the heaters are on in each 32-second duty  
cycle. The reduction in heater time is based on the  
oven temperature at the start of Speedcook. The  
higher the initial cavity temperature, the less time  
the heaters will be on per duty cycle.  
-21  
-42  
-63  
-84  
-105  
-126  
Thermal compensation occurs only once, at the  
beginning of a Speedcook cycle. In the following  
thermal compensation chart, the rst column lists  
the initial cavity temperature, the second and third  
columns list the number of minutes and seconds the  
unit will have thermal compensation active.  
Note: Voltage compensation should be within 20  
seconds of values in table.  
Voltage compensation occurs after approximately 5  
seconds of cooking operation. The display will show  
OPTIMIZING COOK TIME. The time will ash and  
then display the new adjusted time, based on the  
amount of voltage compensation required.  
Thermal Compensation Chart  
Voltage compensation only occurs during  
Speedcook operation and only occurs once during  
the cooking cycle (at initial start of Speedcook  
operation).  
Initial Cavity Compensation Compensation  
Temperature  
150°F  
175°F  
200°F  
225°F  
250°F  
275°F  
300°F  
325°F  
350°F  
375°F  
400°F  
425°F  
450°F  
Time Minutes Time Seconds  
2
2
3
3
3
4
4
5
5
6
6
7
7
7
33  
0
Thermal Protection  
Thermal protection is a safety feature built into the  
Advantium’s software. In the event that the internal  
oven temperature reaches 500°F, the thermistor will  
communicate this information to the main PCB and  
thermal protection will be initiated. While in thermal  
protection mode, cooking cycles will be maintained;  
however, heaters will not be utilized until the oven  
reaches the proper operating temperature.  
27  
53  
20  
47  
13  
40  
7
33  
0
27  
(Continued Next Page)  
– 12 –  
Speedcook Power Level Chart  
Upper Heater Lower Heater  
Upper Power  
Level  
Lower Power  
Level  
Microwave On  
Time  
On Time  
On Time  
Hi  
100%  
100%  
0%  
Hi  
Lo  
Hi  
Lo  
Hi  
Lo  
100%  
100%  
100%  
90%  
80%  
70%  
65%  
90%  
65%  
0%  
0%  
Medium Hi  
Med  
0%  
10%  
10%  
90%  
Hi  
80%  
70%  
70%  
70%  
20%  
30%  
Med Lo  
Lo  
Lo  
Hi  
60%  
30%  
60%  
30%  
40%  
70%  
Lo  
– 13 –  
Installation  
Advance Planning  
Electrical Requirements  
These ovens may be installed directly into a 27-  
in. or 30-in. wide oven cabinet.  
Single Advantium 120 Installation  
This product requires a 120 volt, 60 Hz, 15 amp  
circuit and draws 1.8 kilowatts. This product must be  
connected to a supply circuit of the proper voltage  
and frequency.  
The front surface of the oven will be nearly ush  
with surrounding cabinet doors.  
This oven can be installed over any GE or  
Monogram single electric built-in oven, or a  
warming drawer or both.  
Wire size must conform to the requirements of  
the National Electrical Code or the prevailing  
local code for this kilowatt rating.  
Color matched side trim pieces are provided  
for installation into a 30-in. wide space. Use the  
side trim when installing the oven above a 30”  
wide wall oven or warming drawer. Discard the  
side trim pieces if you are installing over a 27-in.  
wide oven.  
The power supply cord and plug should be  
brought to a separate 15 or 20 ampere branch  
circuit single grounded receptacle. The outlet  
box should be located within reach of the 48-in.  
power cord.  
Cutout dimensions are the same for both 27-in.  
or 30-in. wide cabinet installations.  
Electrical Location  
IMPORTANT: This oven is not approved for use  
above another built-in Speedcook oven, a side by  
side installation or below a countertop.  
6”  
For personal safety, this oven cannot be  
installed in a cabinet arrangement such as an  
island or peninsula.  
9”  
3
4
The oven must be installed at least 36 / in.  
above the oor.  
Allow for clearance to adjacent corners, walls,  
drawers, etc.  
Locate outlet box in the shaded area  
Cabinets installed adjacent to wall ovens  
must have an adhesion spec of at least 194ºF  
temperature rating.  
IMPORTANT: (Please read carefully). The power cord  
of this appliance is equipped with a three-prong  
(grounding) plug that mates with a standard three-  
prong grounding wall receptacle to minimize the  
possibility of electric shock. The customer should  
have the wall receptacle and circuit checked by a  
qualied electrician to make sure the receptacle is  
properly grounded and has the correct polarity.  
The oven must be securely installed in a cabinet  
that is rmly attached to the house structure.  
Weight on the oven door could cause the oven  
to tip and result in injury. Never allow anyone to  
climb, sit, stand or hang on the oven door.  
Where a standard two-prong wall receptacle is  
encountered, it is the personal responsibility and  
obligation of the customer to have it replaced with  
a properly grounded three-prong wall receptacle.  
Do not, under any circumstances, cut or remove the  
third (ground) prong from the power cord. DO NOT  
USE AN EXTENSION CORD.  
– 14 –  
Component Locator Views  
Front View  
Control Panel Assembly  
Convection Fan Assembly  
Turntable  
Main Component Locator View  
Blower Motor  
Power  
Transformer  
Convection Heater  
Assembly  
Damper  
Assembly  
Capacitor  
Thermistor  
Magnetron  
Fuse and Noise Filter  
(Continued Next Page)  
– 15 –  
Top View  
High Voltage Transformer  
Diode  
Damper Assembly  
Upper Heater Assembly  
Magnetron  
Fuse  
Capacitor  
Upper Heater TCO  
Blower Assembly  
Low Voltage Transformer  
Power Board  
Relay Board  
Bottom View  
Turntable Motor  
Lower Heater Assembly  
(Continued Next Page)  
– 16 –  
Left Side View  
Control Panel Assembly  
Low Voltage Transformer  
Humidity Sensor  
Oven Cavity TCO  
Lower Heater Assembly  
Right Side View  
Control Panel Assembly  
Fuse  
Noise Filter  
Blower Assembly  
Right Side Door Switch Assembly  
(Continued Next Page)  
– 17 –  
Control Panel Assembly (Shown separated)  
Control Panel  
Selector Board  
Display Board  
Control Board  
Low Voltage Transformer  
Power Board  
Relay Board  
Control Panel Bracket  
– 18 –  
Control Boards and Panel Connections  
Power Board  
CN5  
CN8  
CN6  
CN7  
CN11  
CN4  
CN4 - Control Board  
CN5 - Humidity Sensor  
CN6 - Door Secondary Sensing Switch and Damper Door Sensing Switch  
CN7 - Low Voltage Transformer (Secondary Windings)  
CN8 - Thermistor  
CN11 - Relay Board  
(Continued next page)  
– 19 –  
Relay Board  
CN1  
CN2  
RY7  
RY8  
RY11  
RY9  
RY2  
CN3  
CN1 - Low Voltage Transformer (Primary Winding)  
CN2 - Connection to Door Switch, Heater, and Turntable Motor  
CN3 - Control Board  
RY2 - High Voltage Transformer  
RY7 - Convection Heater  
RY8 - Upper Heater (Ceramic)  
RY9 - Lower Heater  
RY11 - Upper Heater (Halogen)  
Control Board  
CN10  
CN3  
CN9  
CN4  
CN13  
CN3 - Relay Board  
CN4 - Power Board  
CN9 - Selector Board  
CN10 - Display Board 20-Pin Connector  
CN13 - Selector Board  
(Continued next page)  
– 20 –  
Display Board  
20-Pin  
Connector  
to CN10  
on Control  
Board  
Selector Board  
CN14  
CN13  
CN9  
CN9 - Control Board  
CN13 - Control Board  
CN14 - Control Panel  
Control Panel  
CN14 to  
Selector  
Board  
– 21 –  
Components  
Component Access Chart  
WARNING:  
The oven is heavy and requires two  
people to remove from the cabinet or  
wall opening. Care should be taken when  
removing and installing.  
Sharp edges may be exposed when  
servicing. Use caution to avoid injury.  
Wear Kevlar gloves or equivalent  
protection.  
Blower Assembly  
Capacitor and Diode  
Cavity Light  
Cavity TCO  
Control Panel Assembly  
Convection Fan Motor  
Convection Heater Assembly  
Damper Assembly  
Door  
Door Assembly  
Fuse  
High Voltage Transformer  
Humidity Sensor  
Left and Right Door Switch Assemblies  
Lower Heater Assembly  
Low Voltage Transformer  
Magnetron and Magnetron Thermostat  
Noise Filter  
Thermistor  
Turntable Motor  
Turntable Support  
Upper Heater Assembly  
Upper Heater TCO  
– 22 –  
Access Cover  
Oven Removal / Partial Removal  
To remove the access cover, the oven must be at  
least partially removed from the installation.  
To remove the oven from cabinet or wall opening:  
WARNING: This oven requires 2 people for complete  
oven removal. Grasp the bottom of the oven at the  
front and rear on each side.  
The access cover is attached to the outer cover by 2  
Phillips-head screws.  
Caution: Do not use the oven handle to lift or lower  
the oven. Damage will occur.  
1. Open the door and remove the wire rack,  
aluminum baking sheet, glass tray, metal tray,  
and turntable.  
2. Remove 4 screws from the side trims  
3. Slide the oven forward approximately 11 inches  
to access some components, or remove it  
completely from the cabinet or wall opening.  
Outer Cover  
To remove the outer cover, the oven must be  
removed from the installation.  
The outer cover is held in place by 21 Phillips-head  
screws.  
4. Unplug the power cord, and lower the oven onto  
a protected surface.  
– 23 –  
To disassemble the door:  
Door Assembly  
1. Remove the 4 screws from the glass mount.  
2. Remove the choke cover.  
WARNING: A microwave leakage test must be  
performed any time a door is removed, replaced, or  
adjusted for any reason. (See Diagnostic and Service  
Information.)  
3. Remove the 4 screws from the door frame, and  
remove door frame from the glass supporter.  
Door Removal  
4. Remove the 4 screws from the glass supporter,  
and remove the door handle and vent trim from  
the glass supporter.  
Caution: Do not close the door beyond the door  
removal position. Damage to the inner door panel  
will occur.  
SCB1000K and SCB1001K  
To remove the door, open the door fully and insert a  
door removal tool (Part # WB01X10318) in each door  
hinge opening. The door can then be slowly closed  
a few inches to the door-removal position and lifted  
from the oven.  
Latch  
Choke Cover  
Latch  
Spring  
Glass  
Supporter  
Door  
Handle  
Tool  
Tool  
Latch  
Spring  
Door  
Frame  
Glass Mount  
Door Deco  
Door Glass  
Door Hinge Opening  
ZSC1000K and ZSC1001K  
Latch  
Choke Cover  
Latch  
Spring  
Door-Removal Position  
Latch  
Spring  
Door  
Handle  
Door  
Frame  
Door Panel  
Door Glass  
– 24 –  
4. Remove the 2 Phillips-head screws that attach  
the control panel assembly to the side of the  
frame.  
Control Panel Assembly  
The control panel assembly consists of an outer  
control panel and an inner control panel bracket.  
The outer control panel contains the control, display,  
and selector circuit boards. The power and relay  
circuit boards, and the low voltage transformer are  
attached to the control panel bracket. Removing the  
control panel allows access to the oven lamp.  
The control panel is held in place with 7 Phillips-  
head screws and 4 tabs. Two of the screws are  
recessed from the top of the outer cover. Access  
holes are provided. A magnetic screwdriver is  
necessary to capture these screws.  
To remove the control panel assembly:  
1. Place the oven in a partially removed position.  
5. Open the oven door.  
(See Oven Removal / Partial Removal.)  
6. Grasp the bottom of the control panel assembly  
and lift to release the 4 tabs that hold the  
bottom of the control panel assembly to the  
oven frame.  
2. Remove the 3 Phillips-head screws from the top  
front of the outer cover.  
7. Disconnect wire harnesses from the power  
board at locations CN5, CN6, and CN8.  
8. Disconnect wire harnesses from the relay board  
at locations RY2, RY7, RY8, RY9, RY11, and CN2.  
3. Remove the 2 recessed Phillips-head screws  
that attach the control panel assembly to the  
top of the frame.  
(Continued Next Page)  
– 25 –  
To remove the power board:  
To remove the relay board:  
1. Remove the control panel assembly. (See Control  
1. Remove the control panel. (See Control Panel  
Panel Assembly.)  
Assembly.)  
2. Disconnect wire harnesses from the power  
board at locations CN4, CN7, and CN11.  
2. Peel back the foam tape.  
3. Disconnect the wire harness from the power  
board at location CN11 and release the harness  
from the wire retainer.  
3. Remove the 4 Phillips-head screws that attach  
the power board to the control panel bracket.  
4. Lift the power board to clear the retaining tab.  
4. Disconnect wire harnesses from the relay board  
at locations CN1 and CN3.  
5. Remove the 5 Phillips-head screws that attach  
the relay board to the control panel bracket.  
Tab  
CN7  
6. Lift the relay board to clear the retaining tab.  
CN11  
Wire Retainer  
CN11  
CN4  
Foam Tape  
Tab  
CN1  
CN3  
(Continued Next Page)  
– 26 –