GE Consumer & Industrial PB978DP1BB How to use

GE Appliances
General Electric Company
Louisville, Kentucky 40225
31-9187
Profile 30-in.
Free-Standing
Double Oven Range
PB978DP1BB
PB978SSP1SS
PB978TP1WW
Technical Service Guide
July 2009
GE Consumer & Industrial
U
PPER
O
VEN
HR: MIN
TRUETEMP
COOK
TIME
12345
67890
SETTINGS
UPPER OVEN
GRIDDLE CONTROL
LOWER OVEN
WARMING ZONE
DELAY
START
TIME OF DAY
HOLD SEC
START
BAKE
SET TEMP SET UPPER LOWER COOK TIMER SET TEMP
1=FROZEN 2=FRESH START TIME 1=POULTRY 2=MEATS
DOOR O WARM CLEAN TIME INSERT PROBE TEMP
BROIL
HI/LO
PIZZA
SELF
CLEAN
WARM
OVEN
LIGHTS
START
CONTROL
LOCKOUT
KITCHEN TIMER
BROIL
HI/LO
CONVECTION
BAKE
MELT
BURNER
SIZE
BURNER
SIZE
SELF
CLEAN
PROBE
SLOW
COOK
TIMER
ON
TIMER
OFF
LOWER OVEN
CLEAR
OFF
COOK
TIME
DELAY
START
TIME OF DAY
START
CLEAR
OFF
ON
OFF
SELECT
ON
OFF
MELT
ON
OFF
ON
OFF
ON
OFF
ON
OFF
COOK
1/2
1/2
1/2
1/2

– 2 –
IMPORTANT SAFETY NOTICE
The information in this service guide is intended for use by
individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair a
major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible for the
interpretation of this information, nor can it assume any liability in
connection with its use.
WARNING
To avoid personal injury, disconnect power before servicing
this product. If electrical power is required for diagnosis or test
purposes, disconnect the power immediately after performing the
necessary checks.
RECONNECT ALL GROUNDING DEVICES
If grounding wires, screws, straps, clips, nuts, or washers used to
complete a path to ground are removed for service, they must be
returned to their original position and properly fastened.
GE Consumer & Industrial
Technical Service Guide
Copyright © 2009
All rights reserved. This service guide may not be reproduced in whole or in part
in any form without written permission from the General Electric Company.

– 3 –
Table of Contents
Capacitive Touch Glass .................................................................................................................................................19
Component Locator Views...........................................................................................................................................10
Control Features................................................................................................................................................................ 6
Control Panel .....................................................................................................................................................................19
Control Panel Assembly.................................................................................................................................................19
Cooktop Burner Controls............................................................................................................................................... 6
Daughter Relay Board (DRM) .....................................................................................................................................17
Diagnostics and Service Information......................................................................................................................22
Electrical Installation....................................................................................................................................................... 9
Griddle Burner Control.................................................................................................................................................... 7
Hidden Bake Element ....................................................................................................................................................18
Installation........................................................................................................................................................................... 8
Introduction......................................................................................................................................................................... 4
Key Panel Test....................................................................................................................................................................24
LIN Test..................................................................................................................................................................................24
Main Logic Board .............................................................................................................................................................20
Main Logic Board Failure Codes................................................................................................................................22
Nomenclature.................................................................................................................................................................... 5
Oven Components ..........................................................................................................................................................16
Oven Sensors......................................................................................................................................................................25
Rear Cover Removal .......................................................................................................................................................16
Relay Boards Connector Locator Views.................................................................................................................13
Relay Board Voltages......................................................................................................................................................25
RPSM Aux Board ...............................................................................................................................................................17
RPSM Main Board ............................................................................................................................................................16
Sales/Demo Mode............................................................................................................................................................ 8
Schematics and Wiring Diagrams............................................................................................................................26
Self Clean.............................................................................................................................................................................. 7
Test Mode.............................................................................................................................................................................24
Thermal Cutout (TCO) .....................................................................................................................................................17
Warming Zone Control................................................................................................................................................... 6
Warranty..............................................................................................................................................................................29

– 4 –
Introduction
GE's second generation Profile 30-in. free-standing double oven range is available with convection cooking in
the lower oven. These ranges feature electronic oven and surface unit controls that combine modern digital
technology with ease of operation. Their superior style and performance parallel many commercial ranges.
Electronically controlled oven heating elements - provide precise cooking control with fast preheating.•
Convection mode uses reverse-air convection• technology - a bidirectional fan that works with a
dedicated third heating element to promote even
heat circulation.
Performance compensation for 208-volt• installation boosts power as needed in multifamily
dwellings.
6.5 cu. ft. total capacity.•
Cooktop locked out during self-clean.•
New motorized self-clean door latch.•
Recessed convection, low-profile broil elements,• and hidden lower oven bake element.
Full-extension, self-cleaning, porcelain-coated• racks that can be left in the oven during the self-
clean cycle.

– 5 –
The nomenclature plate is located on the
front left, behind the oven door.
The mini-manual is placed in an envelope
located inside the control panel.
Brand
P = Profile
P B 9 7 8 D P 1 B B
Nomenclature
Model Number
Feature Pack
Designates features–the higher
the number, the more features
Product Color
WW = White
BB = Black
SS - Stainless Steel
Indicator for Engineering and
Product Service Only
Model Year Designator
Glass Color
Color Match Cook-Top
Configuration
B = 30-in. Range
Nomenclature
The letter designating
the year repeats every
12 years.
Example:
T - 1974
T - 1986
T - 1998
Serial Number
The first two numbers of the serial number
identify the month and year of manufacture.
Example: AS123456S = January, 2009
A- JAN 2009 - S
D - FEB 2008 - R
F - MAR 2007 - M
G - APR 2006 - L
H - MAY 2005 - H
L - JUN 2004 - G
M - JUL 2003 - F
R - AUG 2002 - D
S - SEP 2001 - A
T - OCT 2000 - Z
V - NOV 1999 - V
Z - DEC 1998 - T

– 6 –
O N
O FF
M ELT
O N
O FF
B URNER
S IZE
Control Features
Cooktop Burner Controls
To use the cooktop burners:
Touch the1. ON/OFF pad for the desired burner.
Use the +/- pads to select the desired power setting. Nineteen power levels are available (L, 1 through 92. with ½ step increments, and H).
Touching the3. MELT pad selects the low setting.
Some burners have multiple cooking zones. Touching the4. BURNER SIZE pad after the burner is on selects
the desired burner size. If no selection is made, all cooking zones for that burner will be on.
Touch the5. ON/OFF pad again to turn the burner off.
Warming Zone Control
To use the warming zone:
Touch the1. ON/OFF pad.
Touch the2. SELECT pad for the desired setting (L/M/H).
Touch the3. ON/OFF pad again to turn the warming zone off.
Warming Zone
Setting 6" Warmer
Hi 95%
Med 65%
Lo 36%
M
7
5
W ARMING Z ONE
S ELECT
O N
O FF

– 7 –
Griddle Burner Control
Griddle temperature is regulated by an algorithm built into the control. It takes into consideration the mass
of the griddle, temperature selection, and the on/off times of the front and rear burners to approximate the
customer setting, but it will vary somewhat with the quantity of food on the griddle.
Note:
Use only the griddle pan provided with the range.•
The non-stick coating on the griddle will degrade if exposed to temperatures above 550˚F.•
Do not clean the griddle in the self-clean oven.•
To use the cooktop griddle control:
Touch the1. ON/OFF pad.
Use the +/- pads to select the desired temperature setting. Temperature settings range from 200°F to2. 400°F in 25°F increments. The default setting is 375°F.
“PrE” will be displayed until the desired temperature is reached. The left front and left rear burners will3. cycle to maintain the selected temperature.
Touch the4. ON/OFF pad again to turn the cooktop griddle off.
375
Self Clean
The self clean procedure on the double oven is virtually the same as on the pervious version with one
exception. When in clean mode, the cooktop is still locked out, but instead of using a cooktop lockout relay,
lockout is done electronically by the main logic board.

– 8 –
Installation
Sales/Demo Mode
The demo kit model number is PB978 Demo Kit - Electric Ranges with Backlit Touchkeys. The cord is available
as Pub 3-A029. There is no change to the cord; the only difference is how the cord is attached to this model
range.
The following features are disabled in Demo Mode:
Oven heating elements•
Surface burners•
Convection fan•
Door latch motors•
Caution: This kit must be installed by qualified personnel only.
To install the demo kit:
Disconnect the ground strap from the range body (the strap must not contact the range structure or the1. ground wire).
Connect the green wire to the range body using the grounding screw.2.
Connect the single black wire with ribs or the gray stripe wire to the left terminal of the junction box.3.
Connect the larger of the two smooth black wires to the right terminal of the junction box and the smaller4. of the two smooth black wires to the center terminal.
The cord is to be plugged into a 120V, 60 Hz polarized and grounded outlet.5.
To remove the demo kit:
To reverse the above process, ensure that the ground strap is reconnected to the range body using the
grounding screw.
JUNCTION BLOCK
GROUND
STRAP
(MUST NOT
TOUCH RANGE
BODY)
GREEN WIRE
BLACK WITH RIBS OR
GRAY STRIPE WIRE
BLACK WIRE
Note: The black wire with ribs or gray
stripe is neutral

– 9 –
bAd LinE
Electrical Installation
A "bAd LinE" will be displayed to signal a terminal block cord miswire. This error will also appear if 120
VAC is not present between MJ21-5 and MJ20-3. It will also appear if there is less than 200 VAC between
MJ20-1 and MJ20-3. MJ20 and MJ21 are both located on the RPSM main board. (See Schematics and Wiring
Diagrams.)

– 10 –
Component Locator Views
(Continued next page)
Control - Front View
Control Panel
Ovens - Front View
Shown with oven doors removed
Hidden Bake Element
Convection Fan and Element
Broil Element
Broil Element
Meat Probe Outlet
Bake Element
Oven Temperature Sensor
Oven Temperature Sensor
Incandescent Lamp Halogen Lamp
Halogen Lamp