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
Download from Www.Somanuals.com.AllManuals Search And Download.
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.
Download from Www.Somanuals.com.–All3Ma–nuals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Nomenclature
Model Number
S C B 1 0 0 0 D B B
GE Speedcook Technology
SC =GE Profile
ZS = Monogram
Exterior Color
BB = Black
CC = Bisque
SS = Stainless Steel
WW = White
Configuration
B = Wall Oven
C = Monogram Wall Oven
Model Year Designator
Model Designator
1000 = Color Model
1001 = Stainless Steel Model
Serial Number
The first 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.
Download from Www.Somanuals.com.–All5Ma–nuals Search And Download.
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 Benefits
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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.
Download from Www.Somanuals.com.–All7Ma–nuals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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.
Download from Www.Somanuals.com.–All9Ma–nuals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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 flavor.
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 fish.
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 fluctuations 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 specific 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 flavor. 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)
Download from Www.Somanuals.com–. Al1l M1an–uals Search And Download.
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 first 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 flash 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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com–. A1ll M3an–uals Search And Download.
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 flush
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 floor.
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
qualified 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 firmly 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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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)
Download from Www.Somanuals.com–. A1ll M5an–uals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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)
Download from Www.Somanuals.com–. A1ll M7an–uals Search And Download.
Control Panel Assembly (Shown separated)
Control Panel
Selector Board
Display Board
Control Board
Low Voltage Transformer
Power Board
Relay Board
Control Panel Bracket
– 18 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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)
Download from Www.Somanuals.com–. A1ll M9an–uals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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
Download from Www.Somanuals.com–. A2ll M1an–uals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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.
Download from Www.Somanuals.com–. A2ll M3an–uals Search And Download.
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
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)
Download from Www.Somanuals.com–. A2ll M5an–uals Search And Download.
To remove the power board:
To remove the relay board:
1. Remove the control panel assembly. (See Control
Panel Assembly.)
1. Remove the control panel. (See Control Panel
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 –
Download from Www.Somanuals.com. All Manuals Search And Download.
To remove the control board:
To remove the control panel bracket:
1. Remove the control panel bracket. (See Control
Panel Assembly.)
1. Remove the control panel. (See Control Panel
Assembly.)
2. Disconnect the 20-pin harness connector from
the display board.
2. Disconnect wire harnesses from the relay board
at location CN3 and from the power board at
location CN4.
3. Disconnect the wire harnesses from the selector
board at locations CN9 and CN13.
3. Peel back the foam tape and release the wire
harness to CN4 from the wire retainer.
4. Remove the 4 Phillips-head screws that hold the
control board to the control panel.
4. Remove the 4 Phillips-head screws (2 on each
side) from the control panel bracket.
5. Slide the control panel bracket to the right then
lift the control panel bracket from the control
panel.
6. Guide the disconnected harnesses through the
wire entry hole in the control panel bracket.
To remove the display board:
Wire Retainer
The display board is attached to the control panel
by 2 Phillips-head screws and positioned by 2 pins.
The display board connects to the control board
with a 20-pin wire harness. To access the display
board it is necessary to remove the control panel
bracket. (See Control Panel Assembly.)
Wire Entry Hole
Foam Tape
20-Pin Wire Harness
(Continued Next Page)
Download from Www.Somanuals.com–. A2ll M7an–uals Search And Download.
To remove the selector board:
Low Voltage Transformer
1. Remove the control panel bracket. (See Control
Panel Assembly.)
The low voltage transformer is held in place by 2
Phillips-head screws.
2. Pull the dial straight out from the control panel.
The control panel must be removed to access
the low voltage transformer. (See Control Panel
Assembly.)
3. Disconnect wire harnesses from the selector
board at locations CN9 and CN13.
The low voltage transformer is connected to the
power board at location CN7 and on the relay board
at location CN1.
4. Disconnect the wire harness from the control
panel at location CN14.
5. Remove the 6 Phillips-head screws that attach
the selector board to the control panel.
CN13
CN9
Resistance Check
To remove the control panel:
1. Disconnect the harness from the relay board at
location CN1.
To access the control panel it is necessary to remove
the control panel bracket, control, display, and
selector boards. (See Control Panel Assembly.)
2. Check the primary winding for approximate
resistance value between the white and black
wires of 23.2 Ω.
3. Disconnect the harness from the power board
at location CN7.
4. Check the secondary windings for approximate
resistance value between:
•
•
•
Yellow to black - 1.5 Ω
Black to white - 5.2 Ω
Red to brown - 1.1 Ω
Note: Voltage check for the transformer is:
•
Yellow to black - 13 VAC
•
•
Black to white - 20 VAC
Red to brown - 8 VAC
– 28 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Cavity Light
Fuse
The oven lamp is inserted in a socket that is
Important Note: The primary interlock, monitor
interlock, door sensing (secondary interlock)
switches, and the relay board must all be replaced
when the 20 amp fuse opens due to operation of the
monitor interlock switch.
attached to the lamp housing with 2 Phillips-head
screws. The screws are recessed from the top of the
outer cover. Access holes are provided. A magnetic
screwdriver is necessary to capture these screws.
It is necessary to remove the control panel to access
the oven lamp. (See Control Panel Assembly.)
The unit is equipped with a 20 amp fuse (Part #
WB27X10388).
The oven cavity light will come on during a
microwave cooking cycle.
The fuse is located in a receptacle near the top of
the noise filter and is common to all functions and
door switches.
Fuse
Note: If the fuse opens, it will disable all oven
functions including the display. The oven must be
partially removed to access the fuse. (See Oven
Removal / Partial Removal.)
Caution: Do not twist the lamp.
The oven lamp is a 130-VAC, 20-watt lamp (Part #
WB08X10050). It is a plug-in type lamp.
Download from Www.Somanuals.com–. A2ll M9an–uals Search And Download.
Capacitor and Diode
Noise Filter
WARNING: Always be certain the capacitor is
discharged before servicing. Mechanically discharge
by placing an insulated handle screwdriver between
the diode connection of the capacitor and the oven
chassis ground.
The noise filter is located behind the blower
assembly on the right side of the oven. The noise
filter is held in place by a single Phillips-head screw.
The filter ground wire is attached to the oven
chassis near the noise filter by a single Phillips-head
screw. The outer cover must be removed to access
the noise filter. (See Oven Removal / Partial Removal.)
Note: The capacitor has an internal discharge
resistor that automatically discharges the capacitor
when the oven turns OFF. Under normal operation,
capacitor should fully discharge within 30 seconds.
Note: When installing the noise filter, ensure all filter
wiring is connected to the correct terminals.
The oven must be
partially removed to
Top View of Noise Filter
Diode
access the capacitor. (See
Oven Removal / Partial
Screw
Removal.) The capacitor
is located behind the top
access cover and is held
in place by 2 Phillips-head
screws. A single Phillips-
head screw attaches the
capacitor and diode to
the oven chassis.
Ground Wire Screw
Screw
Note: When disconnecting the wires and diode from
the capacitor, note wire and diode locations.
Noise Filter
The capacitor wires have locking tabs. Remove
the capacitor, capacitor bracket, and diode as one
assembly.
Check to make sure the fuse is good. Check the
noise filter for approximate resistance value at the
following locations:
White (neutral input) to white (neutral output) - 0 Ω
Black (line input) to black/brown (line output) - 0 Ω
White (neutral input) to black (line input) - 23 Ω
Front View of Noise Filter
Input
Wire
Harness
Output-N
Output-L
– 30 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Magnetron and Magnetron TCO
High Voltage Transformer
WARNING: Always be certain the capacitor is
discharged before servicing. (See Capacitor and
Diode.) Mechanically discharge by placing an
insulated handle screwdriver between the diode
connection of the capacitor and the oven chassis
ground.
WARNING: Always be certain the capacitor is
discharged before servicing. (See Capacitor and
Diode.) Mechanically discharge by placing an
insulated handle screwdriver between the diode
connection of the capacitor and the oven chassis
ground.
Note: The capacitor has an internal discharge
resistor that automatically discharges the capacitor
when the oven turns OFF. Under normal operation,
the capacitor should fully discharge within 30
seconds.
Note: The capacitor has an internal discharge
resistor that automatically discharges the capacitor
when the oven turns OFF. Under normal operation,
the capacitor should fully discharge within 30
seconds.
The oven must be removed to access the
magnetron. (See Oven Removal / Partial Removal.)
The magnetron is located behind the top access
cover. The top access cover is held in place by 2
Phillips-head screws. The magnetron is held in
place by 4 Phillips-head screws. The magnetron
thermostat must be disconnected before removing
the magnetron.
The oven must be removed to access the high
voltage transformer. (See Oven Removal / Partial
Removal.) The high voltage transformer is located
behind the top access cover. The top access cover is
held in place by 2 Phillips-head screws.
The transformer is held in place with 4 Phillips-head
screws. 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.
Magnetron
Transformer
Magnetron TCO
When disconnecting the primary and secondary
wire connections, note the wire locations. The wire
connectors use releasing locking tabs.
Magnetron TCO
The magnetron TCO is attached to a bracket
mounted to the magnetron. The magnetron bracket
is held in place by a single Phillips-head screw.
ELECTRICAL TERMINAL
RELEASE/LOCKING TAB
This position of the magnetron TCO allows it to
sense the temperature of the magnetron.
Check the high voltage transformer windings for
approximate resistance value between:
The magnetron TCO opens at 302°F and cannot be
reset. If the magnetron TCO opens, it will disable all
oven functions including the display.
Red to white (primary) - .5 Ω
Red/Black to chassis ground (secondary) - 87 Ω
Magnetron harness (filament high voltage) - .2 Ω
Download from Www.Somanuals.com–. A3ll M1an–uals Search And Download.
Damper Assembly
Blower Assembly
The damper assembly is on the top right side of
the oven cavity. When the damper door is closed,
moisture is retained in the oven cavity. When the
damper door is open, moisture is released, allowing
food to be more crisp.
A blower protects the oven from too much heat
inside the oven cavity. It automatically turns on at
low speed if it senses too much heat. The blower will
automatically turn off when the internal parts are
cool. It may stay on for 30 minutes or more after the
oven control is turned off.
The outer cover must be removed to access or
observe operation of the damper assembly. (See
Oven Removal / Partial Removal.)
The blower motor has an approximate resistance
value of 14 Ω.
The damper assembly is held in place by 2 pins
and 3 Phillips-head screws that attach the damper
assembly to the oven chassis. When removing,
move the damper assembly inward to disengage
the 2 pins from the vent tube.
Blower Assembly
Pin
Pin
To remove the blower assembly:
1. Remove the oven from cabinet or wall opening
and remove the outer cover. (See Oven Removal /
Partial Removal.)
Damper Door Switch
The damper door sensing switch is mounted to the
damper assembly. The switch monitors the damper
door position and provides this information to the
main PCB, which controls the operation of the
damper
2. Disconnect the blower motor wiring and the
oven lamp wire harness.
door motor.
When the
Damper Door Motor
damper
door is
closed, the
switch is
open. The
motor will
Lamp
Wire
Harness
Damper Door Switch
run until
the switch
sends the door closed signal. If the damper door
sensing switch circuit shorts (or opens), the damper
motor will run continually. The damper motor has
an approximate resistance value of 3.36 K Ω.
Blower Motor Wires
3. Remove the foam seal from the blower bracket.
Damper Door Operating Modes
4. Remove wiring from the guides in the blower
bracket and from the retainers on the blower
housing.
Cooking Damper Switch Plunger Switch
Mode
Position
Position
Not Depressed
Depressed
Contacts
Closed
Open
Microwave Open
Speedcook Closed
(Continued Next Page)
– 32 –
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Disconnect wire harnesses on the relay board at
locations CN2, RY2. RY7, RY8, RY9, and RY11.
Upper Heater and Oven Cavity TCOs
The TCOs automatically shut off the oven in the
event of excessive temperatures. When replacing,
be sure to determine the cause of failure. If a TCO
opens, it will disable all oven functions except
the oven light. The outer cover must be removed
to access the TCOs. (See Oven Removal / Partial
Removal.)
•
•
•
•
The upper heater TCO is mounted on the heat
shield above the upper heater assembly.
The oven cavity TCO is mounted to the exhaust
duct on the left side of the oven.
Both TCOs are held in place by a singe Phillips-
head screw.
Disconnect
Disconnect
Both TCOs open at 293°F and cannot be reset.
6. Remove the single Phillips-head screw that
attaches the filter ground wire to the oven
chassis.
Upper Heater TCO
7. Remove the 5 Phillips-head screws that attach
the blower bracket to the oven chassis.
Ground Wire
8. Carefully lift the blower assembly from the oven
chassis.
Oven Cavity TCO
9. Remove the 6 Phillips-head screws that hold the
blower housing to the bracket.
Note: When installing the blower assembly, ensure
that the filter ground wire is secured to the oven
chassis.
Download from Www.Somanuals.com–. A3ll M3an–uals Search And Download.
5. Straighten the 4 folded lock tabs.
Upper Heater Assembly
6. Remove the 8 Phillips-head screws that attach
the heater cover. Lift off the cover.
The halogen heater has an approximate resistance
value of 1.8 to 3.7 Ω. It is connected using a white
wire harness.
The ceramic heater has an approximate resistance
value of 15 to 25 Ω. It is connected using a yellow
wire harness.
To remove the upper heater assembly:
Caution: Mark each of the wire harnesses
before disconnecting. The connectors could be
interchanged, causing an adverse effect in cooking
performance.
Lock Tabs
1. Remove the oven from cabinet or wall opening
and remove the outer cover. (See Oven Removal /
Partial Removal.)
2. Disconnect the heater assembly wire harnesses
and pull them through the wire guide.
7. Remove the 3 Phillips-head screws that attach
the heater assembly to the oven chassis.
3. Disconnect wires from the upper heater TCO.
4. Remove the 2 Phillips-head screws, wire retainer,
and the heater shield from the heater assembly.
8. Carefully lift the heater assembly from the oven
chassis.
– 34 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Lower Heater Assembly
Convection Heater Assembly and Thermistor
The lower ceramic heater has an approximate
resistance value of 32 to 42 Ω.
The oven must be removed from the cabinet or wall
opening to access the convection heater assembly.
(See Oven Removal / Partial Removal.)
To remove the lower heater assembly:
The convection heater assembly is composed of an
inner and outer fan blade, motor, heating element,
and thermistor.
1. Remove the oven from cabinet or wall opening.
(See Oven Removal / Partial Removal.)
2. Remove the 2 Phillips-head screws from the
bottom of each side of the outer cover.
Remove the rear cover. Three Phillips-head screws
hold the cover in place.
3. Remove the 6 Phillips-head screws that attach
the bottom to the oven.
Heater
Thermistor
Lower heater
bracket
Thermistor
Reflector
The thermistor must be removed before removing
the convection heater assembly. The thermistor is
attached to the convection heater assembly by a
single Phillips-head screw.
Base plate
The thermistor is connected to the power board
at location CN8. The approximate values at room
temperature are: Red - Blue = 400K Ω; Red - White
= 290K Ω; Blue - White = 110K Ω.
4. Disconnect the bottom heater and turntable
wire harnesses.
5. Straighten the 4 folded tabs and remove the
3 Phillips-head screws that hold the heater
assembly to the oven chassis.
Convection Heater Assembly Shown with
Rear Cover Removed
Bottom View with Baseplate Removed
Tabs
Thermistor
(Continued Next Page)
Download from Www.Somanuals.com–. A3ll M5an–uals Search And Download.
Convection Heater Element
Convection Fan Motor
The convection heater assembly is held in place
by two 7-mm hex-nuts and 4 Phillips-head screws
The convection heater element has an approximate
resistance value of 9.5 Ω. Two Phillips-head screws
connect the power wires to the element terminals.
The convection fan motor wire leads have locking
tabs that must be depressed to be disconnected.
To remove each wire from the fan motor, depress
the clip using a small blade screwdriver and pull the
wire off the terminal as shown.
ELECTRICAL TERMINAL
RELEASE/LOCKING TAB
The outer convection fan must be removed before
removing the motor. The outer convection fan is
held in place by a 7-mm nut, lockwasher, spacer
and flat washer.
Front View of Outer Convection Fan
The convection fan motor is held in place by 3
Phillips-head screws .
Rear View of Convection Fan
The convection heater
element is held in place
by 4 Phillips-head
Convection Fan Motor
screws. (Three screws on
the front, and 1 screw
on the end.)
End View of Element
– 36 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Humidity Sensor
Turntable Motor
The humidity sensor is mounted to the exhaust duct
on the left side of the oven. The outer cover must be
removed to access the humidity sensor. (See Oven
Removal / Partial Removal.) The humidity sensor is
connected to the power board at location CN5. The
humidity sensor is held in place by 2 Phillips-head
screws.
The turntable motor is held in place with 2 Phillips-
head screws. To replace it requires removing the
turntable, turntable support, and the oven from the
cabinet or wall opening. (See Oven Removal / Partial
Removal.) A single Phillips-head screw attaches an
access panel to the bottom of the oven. A single
wire harness is connected to the turntable motor.
The humidity sensor detects the increasing humidity
released during cooking. The oven automatically
adjusts the cooking time to various types and
amounts of food.
Note: When replacing the turntable support, ensure
it is fully seated into the "D" shaped shaft of the
turntable motor and is flush with the oven floor.
The turntable motor has an approximate resistance
value of 2.6 K Ω.
Humidity Sensor
Humidity Sensor Test
Note:
•
The oven should be plugged in at least 5
minutes before test.
•
•
•
Room temperature should not exceed 95°F.
Be sure the interior of the oven is dry.
Base plate cover
No sensor cooking is available for 5 minutes
immediately after speedcook.
Access the control panel.
Wire leads
Disconnect the humidity sensor wire harness from
the power board at location CN5.
Turntable motor
On the humidity sensor wire harness check for
approximate resistance values between:
•
•
•
Black-Red = 6.5 k Ω
Red-White = 3.25 k Ω
Black-White = 3.25 k Ω
Download from Www.Somanuals.com–. A3ll M7an–uals Search And Download.
2. Remove the single Phillips-head screw that
holds each door switch access cover to the
outer cover.
Left and Right Door Switch Assemblies
The primary interlock, monitor interlock, and
door sensing (secondary interlock) switches are
mounted on plastic latch boards. The latch boards
are attached to the left and right side of the oven
cavity. The left side latch board contains the door
sensing (secondary interlock) switch. The right side
latch board contains the primary interlock and the
monitor interlock switches.
3. Remove the primary interlock and door sensing
switch leads to isolate each switch.
4. Check continuity of each switch with door open
and door closed. Normal readings are as follows:
• Door Closed: 0 Ω
• Door Open: Infinity
Monitor interlock
switch
How to Test the Monitor Switch:
Note: The right side latch pawl pushes horizontally
and actuates the lever of the monitor interlock,
opening the switch.
1. Disconnect power and partially remove the
oven from it’s installation. (See Oven Removal /
Partial Removal.)
2. Remove the single Phillips-head screw that
holds the right side door switch access cover to
the outer cover.
3. Remove the monitor switch leads to isolate the
switch.
Door sensing
(Secondary
Interlock)
Primary interlock
switch
4. Check continuity of the switch with door open
and door closed. Normal readings are as follows:
• Door Closed: Infinity
• Door Open: 0 Ω
Right side Latch Board Shown
How to Test Interlock System:
1. Disconnect power, remove the outer cover (See
Oven Removal / Partial Removal) and discharge
capacitor.
Monitor Interlock Switch
Primary Interlock Switch
2. Check 20 amp fuse for continuity and proper
size. Do not use any other fuse or size except 20
amp.
3. Remove monitor switch leads to isolate switch.
Check continuity of switch with door open and
door closed.
• Door Closed: Infinity Ω
• Door Open: 0 Ω
How to Test Primary Interlock and Door Sensing
Switches:
4. Reconnect switch wiring.
1. Disconnect power and partially remove the
oven from it’s installation. (See Oven Removal /
Partial Removal.)
(Continued Next Page)
– 38 –
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Test Circuit Operation.
To replace the door switches:
a. Connect temporary jumper leads across
relay contacts, primary interlock and door
sensing switches to simulate shorted switch
contacts. Locate convenient connections in
circuit to be certain COM and NO terminals
are used.
1. Place the oven in a partially removed position.
(See Oven Removal / Partial Removal.)
2. Open the oven door.
3. Remove the single Phillips-head screw that
holds the door switch access cover to the outer
cover.
b. Connect ohmmeter (Rx1) across the line
terminals of the appliance cord. Continuity
must show the following:
4. Disconnect the switch wiring.
5. Using a flat blade screwdriver, carefully press
the lock tab until flush with the surrounding
area of the latch board.
• Door Closed : Some Ω
• Door Open : .3 Ω
6. Using the mounting pin as a pivot, carefully
rotate the switch past the lock tab and
c. Remove 20 amp fuse. Circuit must open
(infinity Ω). If not, check wiring of monitor
and interlock circuits.
Remove the switch from the mounting pin.
WARNING: After test, remove temporary jumper
leads from interlock and relay.
Rotate Switch
WARNING: Primary interlock, door sensing switch,
monitor switch, and relay board must be replaced
when the 20 amp fuse is blown due to operation of
monitor switch.
Note: Perform microwave leakage test when
replacing or adjusting interlock switches or latch
board.
How to Adjust the Interlocks:
The latch board is adjustable for proper door closure
and switch operation.
Pivot Pin
1. Disconnect power and partially remove the
oven from it’s installation. (See Oven Removal /
Partial Removal.)
Lock Tab
Note: Each latch board is held in place and adjusted
with 2 Phillips-head screws. The screws are recessed
from the top of the outer cover. Access holes are
provided.
2. Loosen the 2 Phillips-head screws that attach
the latch board to the oven chassis.
3. Adjust each latch-board for proper door closure
and switch operation, retighten screws.
Note: Perform microwave leakage test when
replacing or adjusting interlock switches or latch
boards.
(Continued Next Page)
Download from Www.Somanuals.com–. A3ll M9an–uals Search And Download.
To replace the latch boards:
1. Place the oven in a partially removed position.
(See Oven Removal / Partial Removal.)
2. Open the oven door.
3. Remove the single Phillips-head screw that
holds the door switch access cover to the outer
cover.
4. Disconnect the switch wiring.
Note: Each latch board is held in place with 2
Phillips-head screws. The screws are recessed
from the top of the outer cover. Access holes are
provided. A magnetic screwdriver is necessary to
capture these screws.
5. Remove the 2 Phillips-head screws that attach
the latch board to the oven chassis.
6. Remove the door switches from the latch board.
– 40 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Diagnostics and Service Information
USE ONLY HEAT AND MICROWAVE RESISTIVE GLASS BOWL
Download from Www.Somanuals.com–. A4ll M1an–uals Search And Download.
Demo Mode
Standard Test Load
The Sales Demo mode will allow dealers to
demonstrate all oven functionality with one
exception: No power is ever applied to any of the
halogen lamps, heaters, mag HVT or inrush relays
while the control is in sales mode.
The standard test load is one liter (1000 ml) water
with starting temperature of 59°F ~ 75°F in a 1000
ml beaker. (DO NOT USE ANY OTHER LOAD OR DISH
AS RESULTS WILL VARY FROM STANDARD.)
PERFORMANCE TEST FOR MICROWAVE
The sales mode will be initiated by holding the
“POWER / TEMP” and “START” pads down at the
same time for a full 3 seconds. This mode can only
be entered during the initial “SELECT TIME” display
that occurs when the unit powers up after a long
(>60 seconds) power outage. When sales mode
is initiated, a 2 short-beep signal is sounded and
all oven functions will operate with the following
exceptions;
1. Use Clear Glass Tray and the beaker.
(Part # WB64x0073)
2. Record initial water temperature.
3. Run at high power for 2:03.
4. Record end water temperature. The minimum
difference between the initial and ending
temperature should be: 32°F @ 120V.
1. No power shall ever be applied to any the
heaters, Halogen lamps, magnetron HVT or
Inrush control relays. The control relays for
any of these loads shall not be switched during
sales mode.
Fault Codes
The smart board monitors various operations and
can detect certain failure modes. In the event of
specific failures, cooking will be terminated, a four
beep signal will be heard, and a fault code will be
displayed.
2. The DEMO icon will be lit whenever the unit is in
sales mode regardless of settings or the feature
being selected.
The sales mode is cleared by holding the “POWER
/ TEMP” and “START” pads down at same time for a
full 3 seconds. The sales mode can only be cleared
during the same initial “SELECT TIME” display that
occurs when the unit powers up after a long (>60
seconds) power outage. After 5 seconds elapse, all
functions of the oven will return to normal operation.
Pressing the CLEAR pad will remove the fault code
display, unless the failure is a shorted keypanel
switch. Detection of a failed sensor will have no
effect on features that do not use that sensor.
F4 (open or shorted humidity sensor) and F6 (high
cavity temperature during microwave cooking)
codes apply only to microwave cooking. The
chart below indicates failure modes which can be
detected and displayed.
When power-up occurs, software will check the
special sales demo identifier code. If the code is
set, then the oven will stay in the sales demo mode.
This will prevent the unit from powering back up to
a normal mode if power to the salesroom had gone
off .
Display
Failure Detected
F1
Oven cavity thermistor open
F2
F3
Open cavity thermistor shorted
Key panel shorted (> 60 seconds)
Humidity sensor open or shorted
F4
F6
High cavity temperature detected
during microwave oven cooking
– 42 –
Download from Www.Somanuals.com. All Manuals Search And Download.
Microwave Leak Test
Proof Feature
To test the performance of the proof feature, press
the WARM/PROOF pad, then turn the dial to PROOF
BREAD and press the dial to start. The following will
occur:
•
The convection fan and interior lamp come on
immediately, and stay on.
•
There is an immediate start-up burst (about 1.5
second duration at 75°F ambient) of heat from
the convection heater.
•
The convection fan and interior lamp continue
to operate and, if needed, the convection heater
will cycle on.
1. Place 275 ml water in 600 ml beaker.
(Part # WB64x5010)
Note: Oven proof temperatures range from 75-
95°F. At ambient temperatures above 75°F, heat
generated by the interior lamp may be sufficient to
maintain proof temperatures, and the heater may
not cycle again after start-up.
2. Place beaker in center of Clear Glass Tray.
3. Set meter to 2450 MHz scale.
4. Turn “ON” for 5 minute test.
If an inoperative convection heater in the proof
mode is suspected:
5. Hold probe perpendicular to surface being
tested. Scan surfaces at the rate of one inch per
second. Scan entire perimeter of door, control
panel, viewing surface of door window, and
exhaust vents.
1. Disconnect power.
2. Remove the rear access cover.
6. Maximum leakage is 4 MW/CM2.
3. Remove the thermistor from the convection
heater assembly.
7. Record data on service invoice and microwave
leakage report.
4. Lower the thermistor temperature by placing a
chilled or frozen item against the thermistor.
Note:
5. Connect power and enter proof mode.
•
•
Maximum allowable leakage is 5 MW/CM2. Four
MW/CM2 is used to allow for measurement and
meter accuracy.
6. Check for approximately 120 VAC (12.3 Amps) at
the convection heater.
Inform the manufacturer of any oven found to
have emission in excess of 5 MW/CM2. Make
repairs to bring the unit into compliance at
no cost to owner and try to determine cause.
Instruct owner not to use oven until it has been
brought into compliance.
Download from Www.Somanuals.com–. A4ll M3an–uals Search And Download.
Schematics and Wiring Diagrams
WARNING: POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE
(Continued Next Page)
– 44 –
Download from Www.Somanuals.com. All Manuals Search And Download.
GROUND
HARNESS LEADS
PARTS LEADS
BK2
W3
W2
R4
OVEN TCO
HTR TCO
R1
YL4
W6
DOOR SENSING
SWITCH
YL3
W8
BK1
BL2
W9
YL1
W4
R1
BN3
COLOR SYMBOL
RED
R
W
R7
BL2
YL2
BK9
R10
WHITE
BLACK
BROWN
BLUE
GREEN
YELLOW
PINK
UPPER HEATER
(CERAMIC)
BK
BN
BL
GN
YL
P
BK6
BL5
BL5
W4
BL3
W9
UPPER HEATER
(HALOGEN)
PK1
BN3
GN1
R6
R7
BN3
R5
W10
GROUND
HARNESS LEADS
PARTS LEADS
BLOWER
MOTOR
LVT
W
BK
1
3
C11
W
BK3
BN4
OVEN
LAMP
BK
R
BL3
W2
CROUND
MGT
TCO
YL3
W1
CN11
H.V. DIODE
R3
HVC
YL2
MONITOR
SWITCH
CONVECTION
SHEATH
HEATER
W
W5
MGT TUBE
HUMIDITY
SENSOR
BK1
BK6
R
PRIMARY
INTERLOCK
SWITCH
FA
F
R2
CONVECTION
MOTOR
BN1
THERMISTOR
D.MOTOR
SENSING
SWITCH
DAMPER
MOTOR
SECONDARY
SENSING S/W
5
W8
YL4
2
1
3
4
PK2
BK5
D.MOTOR
SENSING S/W
NOISE
FILTER
TURNTABLE
MOTOR
LOWER CERAMIC
HEATER
P/CORD
Download from Www.Somanuals.com–. A4ll M5an–uals Search And Download.
Warranty
For The Period Of: GE Will Replace:
One Year
From the date of the
original purchase
Any part of the oven which fails due to a defect in materials or
workmanship. During this full one-year warranty, GE will also provide,
free of charge, all labor and in-home service to replace the
defective part.
Three Years
The heating system, if any heater or lamp fails due to a defect
in materials or workmanship. During this full three-year warranty, GE
will also provide, free of charge, all labor and related service costs to
replace the defective part.
From the second through
the third year from the
date of original purchase
Ten Years
The magnetron tube, if the magnetron tube fails due to a defect in
materials or workmanship. During this additional nine-year limited
warranty, you will be responsible for any labor or in-home service
costs.
From the second through
the tenth year from the date
of original purchase
What GE Will Not Cover:
■ Service trips to your home to teach you how ■ Replacement of house fuses or resetting of
to use the product.
circuit breakers.
■ Improper installation, delivery or
■ Damage to the product caused by accident,
maintenance.
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 caused after delivery.
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. Proof of the original purchase date is needed to obtain service under
the warranty.
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
– 46 –
Download from Www.Somanuals.com. All Manuals Search And Download.
|
Eiki Projector LC 5000U User Manual
Electro Voice Microphone PL35 User Manual
Electro Voice Music Mixer MA 1206 User Manual
Euro Pro Iron GI490H User Manual
Excalibur electronic Handheld Game System 404ET User Manual
FieldServer Computer Drive FS 8704 07 User Manual
Fisher Price Riding Toy M6784 User Manual
Gateway Network Router WBR 100 User Manual
GE Cordless Telephone 26921 User Manual
GE Monogram Cooktop Downdraft Gas Cooktop User Manual