GE Monogram ZDP30_ _H, Monogram ZDP36_ _ _H, Monogram ZDP48_ _ _H, Monogram ZGU36_ _ _H, Monogram ZGU48_ _ _H Technical Service Manual

GE Consumer & Industrial

TECHNICAL SERVICE GUIDE

Monogram Dual Fuel Pro Ranges

And

Monogram Gas Cooktops

MODEL SERIES:

ZDP30_ _H
ZDP36_ _ _H
ZDP48_ _ _H
ZGU36_ _ _H
ZGU48_ _ _H

PUB # 31-9119 3/04

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

If the information in this manual is not followed exactly, a fire or
explosion may result causing property damage, personal injury or
death. If you smell gas:

- Do not try to light any appliance.

- Do not touch any electrical switch; do not use any phone in
the building.

- Immediately call the gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.

- If you cannot reach the gas supplier, call the fire department.

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.

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 .

GE Consumer & Industrial

Technical Service Guide

Copyright © 2004

– 2 –

TABLE OF CONTENTS

Blower Thermal Cutout....................................................................................................16

Burner Alignment .............................................................................................................12

Burner Valve..................................................................................................................... 11

Check for Proper Ignition .................................................................................................12

Component Access ........................................................................................................... 8

Component Locator Views ................................................................................................6

Components ......................................................................................................................8

Convection Fan Assembly ...............................................................................................18

Door Assemblies ...............................................................................................................9

Flame Characteristics ..................................................................................................... 11

Grates ..............................................................................................................................12

Griddle Leveling ...............................................................................................................15

Griddle Removal ..............................................................................................................14

Griddle Thermostat Adjustment .......................................................................................15

Grill Burner/Griddle Burner Ignition Systems (On Some Models) ....................................1 3

Grill or Griddle Air Adjustment ..........................................................................................15

Grill or Griddle Igniter Removal ........................................................................................16

Grill Removal ...................................................................................................................14

Ignition and Re-ignition.....................................................................................................12

Introduction ........................................................................................................................4

Lock Motor Assembly.......................................................................................................19

Nomenclature ....................................................................................................................5

Orifice Conversion Kits....................................................................................................11

Oven Blower Motor (30-in. Range Models) ......................................................................20

Oven Blower Motor (36-in. and 48-in. Range Models) .....................................................19

Oven Door .........................................................................................................................8

Oven Light Bulbs .............................................................................................................1 0

Oven Select Switches .....................................................................................................17

Oven Thermostat............................................................................................................. 17

Oven Thermostat Calibration...........................................................................................16

Relays, Convection Pulser T imers and Main Power Connection.....................................1 7

Schematics and Wiring Diagrams................................................................................... 21

Simmer Orifice Burner Replacement .............................................................................. 11

Sparking....................................................................................................................... ....12

Spark Module ...................................................................................................................13

Surface Burner ................................................................................................................10

Surface Burner Adjustments............................................................................................11

Warranty ..........................................................................................................................30

– 3 –

Introduction

The Monogram Ranges are available in 30-in.
36-in. and 48-in. configurations. The 36-in. can
have 6 burners, no grill or griddle or 4 burners
with grill or griddle. The 30-in. and 36-in. models
have a 27-in. self-cleaning oven and the 48-in.
model has an additional 12-in. standard clean
oven.

The gas cooktop-only models are available in
36-in. and 48-in. configurations with the same
grill and griddle combinations as the cooktop on
the 36-in. and 48-in. range models.

All models are available in either natural gas or
LP gas and must be ordered appropriately from
the dealer at the time of purchase.

36-in. Range Shown with Center Grill

48-in. Range Shown with Grill, Griddle, and 12-in. Oven

– 4 –

Model Number

Nomenclature

Z D P 4 8 N 4 G H 1 S S

Monogram

D = Dual Fuel
G = Gas

P = Self Clean
U= Cooktop

Width

Mini-manual

The mini-manual is located behind the bottom
cover.

Nomenclature information is located on the
back of the range.

St ainless Steel

Eng. Digit

Model Y ear

G = Grill and Griddle
R = Grill Only
D = Griddle Only

4 = Surface Burners
6 = Surface Burners

N = Natural Gas
L = LP Gas

Serial Number

The first two numbers of the serial number
identify the month and year of manufacture.

Example: AG123456S = January, 2004
A - JAN 2005 - H

D - FEB 2004 - G
F - MAR 2003 - F
G - APR 2002 - D
H - MA Y 2001 - A
L - JUN 2000 - Z
M - JUL 1999 - V
R - AUG 1998 - T
S - SEP 1997 - S
T - OCT 1996 - R
V - NOV 1995 - M
Z - DEC 1994 - L

The letter designating
the year repeats every
12 years.

Example:

T - 1974
T - 1986
T - 1998

– 5 –

36-in. Range Models

Component Locator Views

4

1 2

9

5

7

6

3

8

1 - Spark Module
2 - Oven Select Switches
3 - Oven Control
4 - Door Lock High Limit
5 - Gas Shut-Off Valve

6 - Relays
7 - Clean Timer
8 - Terminal Block
9 - Transformer

– 6 –

48-in. Range Models

2

9

5

6

1

7

8

2

3

4

1 - Spark Module
2 - Oven Select Switches
3 - Oven Control
4 - Door Lock High Limit
5 - Gas Shut-Off Valve

6 - Relays
7 - Clean Timer and Proof Timer
8 - Terminal Block
9 - Transformer

– 7 –

Components

Component Access

All 36-in. and 48-in. Models

1. Remove the manifold/valve panel:
a. Remove the knobs from the control

valves.

b. Remove the 4 Torx screws located at

each corner of the manifold/valve panel.

c. Carefully pull off the panel. (Do not

scratch the panel.)

2. Remove the landing ledge:
a. Slide the right-side drip tray out (models

with a grill or griddle).

b. Remove the 4 Phillips head screws

holding the landing ledge in place, and lift
the ledge off.

30-in. Range Models

1. Remove the manifold/valve panel. (See 36-in.
and 48-in. Models.)

2. Remove the landing ledge:
a. Remove the 4 Phillips head screws

holding the landing ledge in place, and lift
the ledge off.

48-in. Range Model Shown

Landing Ledge

Oven Door

To remove the door:

1. Fully open the door .

2. Each hinge has a hinge lock. Close the hinge
latches down against the door frame.

3. Firmly grasp the door at the top sides.

4. Close the door to the near-vertical position.

5. Lift the door up and pull straight out.

Hinge Lock

– 8 –

Pull the hinge locks

down to u

nlock.

To install the door:

Door Gasket

1. Firmly grasp the door at the top sides. This is
critical.

2. Approach the range with the door angled in a
vertical position.

3. Guide the hinges into the slots.

4. Push the door in firmly while opening.

5. Once in position, open the door completely .
Push the hinge locks back in and toward the
front frame.

Note: If the door cannot be fully opened, the
hinge is not properly seated.

The gasket is attached to the front frame around
the outer edge of the oven liner. A series of spring
clips mounts the gasket to the front frame. The
ends are tucked into the front frame at the bottom
of the oven liner, leaving approximately 15 inches
of opening across the bottom for air intake on self­clean models. The gasket stops just above the
hinges on the standard oven.

27-in. Oven

Window Gasket

Window Pack

Door Liner

Hinge

Insulation

Insulation
Retainer

Compression
Brackets

ndle

Ha
End Cap

Door
Skin

Handle

Door Assemblies

12-in. Oven Door (48-in. Range Model Only)

The oven door consists of outer and inner
assemblies. The outer assembly consists of the
outer panel and glass along with the handle and
spacers. The inner assembly consists of the
window pack, insulation guard, inner door panel
and hinges.

27-in. Oven Door (30-in., 36-in. and 48-in.
Range Models)

The oven door consists of an outer and inner
assembly. The outer assembly consists of an
outer panel and glass along with the handle and
spacers. The inner assembly is made up of the
window pack, insulation guard, inner door panel,
hinges and window pack gasket.

12-in. Oven (48-in. Range Models Only)

Door Liner

Window Gasket

Door Hinge

Window Pack

Door
Skin

Insulation

nsulation

I
Retainer

Handle

– 9 –

r

Oven Light Bulbs

Surface Burner

Socket

Receptacle

Bulb

Tab

Glass cover

Caution: Before replacing the oven light bulb,
disconnect the electrical power to the range at the
main fuse or circuit breaker panel.

Note: Allow light cover and bulb to cool
completely.

Replace with a new 130V halogen bulb, not to
exceed 35 watts.

To remove and replace the oven light bulb:

1. Turn the glass cover counterclockwise

1

/4 turn
until the tabs of the glass cover clear the
grooves of the socket.

2. Using gloves or a dry cloth, remove the bulb
by pulling it straight out.

3. Using gloves or a dry cloth, remove the new
bulb from its packaging. Do not touch the

bulb with bare fingers.

4. Push the bulb straight into the receptacle all
the way . Place the tabs of the glass cover into
the grooves of the socket. Turn the glass
cover clockwise

1

/4 turn to engage.

To remove the surface burner:

1. Lift off the burner cap and burner head.

2. Remove the burner ring locking nut using a

1

/16-in. socket wrench, crescent wrench or

1
channel-lock pliers.

3. Lift off the burner ring. Do not remove the

burner base.

To replace the surface burner:

1. Align the locator pins on the burner ring into
the labeled hole in the burnerbase. Seat in
place and push toward the electrode to set
gap properly .

2. Replace the burner ring locking nut. Tighten
the nut three times to remove small
imperfections in the parts. This will ensure the
nut remains tight over life:

1

• Hand tighten nut, tighten

/4 turn with

wrench or pliers, then loosen.

• Hand tighten nut a second time, tighten

1

/4 turn with wrench or pliers, then loosen.

1

• Hand tighten nut and final tighten

/4 turn

with wrench or pliers.

3. Align the locator pin in the burner head into the
hole in the burner ring. Seat in place.

4. Replace the burner caps.

Burner Cap

Burner Head

(Brass)

Locator Pins

Burner Ring

(Aluminum)

Locator Pin

Pin Slot

Burner Base

Burner Ring
Locking Nut

With Chamfe

Side View

Electrode

5. For improved lighting inside the oven, clean
the glass cover frequently using a wet cloth.
This should be done when the oven is
completely cool.

6. Reconnect electrical power to the oven.

Note: Locator Pin Fits
Into Burner Base Pin Slot

– 10 –

Main Flame

Simmer Flame

ORIFICE/JET SIZES

ORIFICE (mm) RATE (BTU/HR)

BURNER GAS MAIN SIMMER Valve HI LO SIM

D BURNER NG 1.85 0.57 mm 0.57 17k 2700 1300 185 P
D BURNER LP 1.18 0.34 mm 0.34 15k 2500 1200 118 E
GRILL/GRIDDLE NG 1.93 ––––– 0.94 18k 6000 –––– 48 –––
GRILL/GRIDDLE LP 1.32 ––––– 0.47 18k 6000 –––– 55 –––

MAIN ORIFICE CODE

SIMMER ORIFICE CODE

ORIFICE/JET SIZES

Sea Level 3000 ft. 6000 ft.

BURNER GAS MAIN Orifice (mm)

D BURNER NG 1.85 1.78 1.61
D BURNER LP 1.18 1.09 1.07
GRILL/GRIDDLE NG 1.93 1.85 1.70
GRILL/GRIDDLE LP 1.32 1.32 1.18

HIGH ALTITUDE CONVERSION

Recommended Orifice Size for High Altitude Installation

Burner Valve

Flame Characteristics

The burner valves are attached to the manifold by
two screws and contains an orifice which sets
the flow rate for the simmer flame. This valve
does not have a low flame adjustment, it is
controlled by the orifice size.

Simmer Orifice Burner Replacement

The simmer burner orifice requires a 4mm socket
to remove it. If necessary a 4mm socket is
available under part # WX05x10006.

Burner flames should be blue and stable with no
yellow tips. (Yellow tipping may be normal for LP
gas.) The flame should not have excessive noise
or lifting of the flame from the burner . If any of
these conditions exist, check the burner ports for
blockage.

Orifice Conversion Kits

Burner orifice conversion kits are available for:

• Converting burner orifices from LP to Natural
Gas and from Natural Gas to LP

Surface Burner Adjustment s

Standard adjustments to the air shutter and gas
metering orifices are not possible on sealed
burners.

If burner flames appear to be abnormal, check the
following:

• Check gas pressure available to the burners.
The required operating pressure is 5" W.C.P.
Natural Gas or 10" W.C.P. L.P. (Propane) Gas.

• Check for drafts entering the burner box from
behind the cooktop.

• Check for blockage or partial blockage of the
orifice. Inspect the orifice to be sure it has

been drilled on center and is free of debris or
burrs.

• Check the burner alignment per

Alignment.

• If the cause of the problem cannot be found,
installing an orifice with smaller diameter
openings may solve the problem. In high
altitude (above 6000 ft.) installation, the
orifices will usually have to be downsized.

Burner

• Installation at high altitudes
Natural/LP Conversion Kit - Order part number

WB49X10132
LP/Natural Conversion Kit - Order part number

WB49X10133
High Altitude Conversion Kit – Order p art number

WB49X10130

– 11 –

Grates

Ignition and Re-ignition

To repair damaged feet on range cooktop grates,
order the repair kit, part # WB2X11095.

Burner Alignment

Burner alignment is very important for proper
operation. Make sure the locator pin on the burner
ring is properly aligned with the hole on the burner
base. Each brass burner head is marked with a
clock face. Replace the burner head with the
arrow pointing to the rear of the cooktop (12
o’clock position).

The ignition systems consists of 3 major
components.

• Transformer

• Sp ark Module

• Electrodes and Associated Wiring
Features of the cooktop determine whether the

ignition system uses a 4 or 5 wire spark module.
The spark modules are rated at 240v and have an
internal transformer. The internal transformer
serves two functions.

• An isolation device to prevent random
sparking in reverse polarity situations.

• To increase the input voltage from 120v to
240v .

During the ignition process all the electrodes will
spark simultaneously when any burner is
selected. Once the ignition process is complete,
the flame ionizes the surrounding air which
completes the sensing circuit and satisfies the
module that a flame is present.

Check For Proper Ignition

All the igniters make clicking sounds and spark
even when only a single burner is being turned
on. Do not touch any of the burners when the
igniters are clicking.

1. Push in one control knob and turn 90° to LITE
position.

2. The igniter will spark and the burner will light;
the igniter will cease sparking when the
burner is lit.

3. The first test may require some time while air
is flushed out of the gas line.

4. Turn knob to OFF.

5. Repeat the procedure for each burner .

Sparking

• Input voltage should be 240 V AC and the
ground line should be properly connected to
the range chassis. Volt age should be
measured on one leg of the power supply.

• Make sure electrical circuit is properly
polarized.

• If the igniter electrodes continue to spark after
the burners are lit, check that each burner
component is assembled and seated properly
by observing uniform gaps between each
layer. Disassemble and reassemble as
required.

• If water spills onto the electrode, the burner
will not reignite. The wet electrode will conduct
spark energy to ground, preventing it from
sparking or sensing flame across the spark
gap. The burner will operate normally once the
electrode and wiring connections are dry.

– 12 –

Spark Module

Spark Module

All 36-in. and 48-in. models have a single spark
module located behind the manifold/valve panel.

To remove the module:

1. Remove the manifold/valve panel (see

Component Access).

2. Remove the screws at the upper-right and
lower-left corners of the module.

3. Pull the module up and out.

36-in. Model Shown

30-in. Range Models

Grill Burner/Griddle Burner Ignition
Systems (On Some Models)

The grill burner and griddle burner are ignited by
Norton style glowbar ignition systems. The ignition
circuit consists of the grill switch (grill burner
only), griddle thermostat (griddle burner only), the
igniter and the thermal/safety valve (gas valve).
The components are wired in series for each
cooking function.

Note: The igniter resistance decreases as the
igniter surface temperature increases. The safety
valve operates by current, not by voltage.

From a cold start, the igniter needs 30–60
seconds, with voltage applied, to reduce its
electrical resistance enough to provide a
minimum of 3.2 - 3.6 amps of current flow in the
series circuit. This is the required current flow
needed for the safety valve to open and supply
gas to the burner.

The glowbar should provide a steady current flow
of 3.2 to 3.6 amps flowing in the circuit. At that
point, the igniter temperature is between 1800°F
and 2500°F . The igniter will remain energized at all
times during burner operation. If the igniter glows
red but does not draw at least 3.2 - 3.6 amps, the
fault is usually with the igniter, not the valve.

30-in. range models have a single spark module
located in the center of the burner box.

To remove the module:

1. Remove the burner grates.

2. Lift off the center trim from the burner
maintop.

3. Remove the 2 screws at the front and rear of
the air duct cover , and remove the cover.

4. Remove the 2 screws securing the spark
module to the range.

– 13 –

Grill Removal

Griddle Removal

To remove the grill burner assembly:

1. Remove the grill cover, grill grates and grill
radiant.

2. Lift off the front trim from the front of the grill.

3. Remove the 2 Phillips head screws at the
front of the grill box that secure the grill box to
the cooktop.

4. Carefully lift up the grill box enough to access
the wire nut connecting the igniter to the
neutral, and unscrew the nut. Unplug the wire
going to the valve.

5. Lift the grill up and off the cooktop.

Grill Cover

To remove the griddle assembly:

1. Remove the griddle cover .

2. Lift off the front trim from the front of the
griddle.

3. Remove the 2 Phillips head screws at the
front of the griddle that secure the griddle to
the cooktop.

4. Remove the rear cover from the rear of the
griddle.

5. Remove the center shipping screw and
washer, if they have not already been
removed.

Note: Do not remove the 2 outer leveling screws.

6. Lift the griddle assembly out of the opening
and pull out the thermostat capillary from
beneath the plate.

Burner

Grill Box

Grill Grates

Grill Radiant

Igniter

Front
Trim

Rear
Cover

Griddle
Plate
Assembl

y

Griddle Baffle

Leveling

s

Screw

Griddle
Cover

Front
T

rim

Igniter

Burner

– 14 –

Griddle Leveling

Grill or Griddle Air Adjustment

The 2 screws at the rear of the griddle plate
assembly are leveling screws. They can be
turned to level the griddle or to provide a forward
slope to help grease and oils to drain away from
the food being cooked.

Griddle Thermostat Adjustment

To adjust the griddle thermostat:

1. Pull the griddle control knob off.

2. On the back of the knob, loosen both screws,
but do not completely remove.

3. With the back of the knob facing you, hold the
outer edge of the knob with one hand and turn
the back of the knob with the other hand.

4. To raise the griddle temperature, turn the back
of the knob clockwise. To lower the griddle
temperature, turn the back of the knob
counterclockwise.

1. For the grill, remove the grill cover, grates and
grill radiant. For the griddle, remove the
griddle assembly (see

Griddle Removal).

2. If adjusting the grill air shutter, remove the 2
Phillips head screws at the rear of the burner
and lift the burner out.

3. Loosen the screw on the burner air shutter
using a flat head screwdriver.

4. Using a flat head screwdriver, move the air
shutter in the appropriate direction. If the
flame is too yellow, indicating insuf ficient air,
adjust the shutter counterclockwise to
increase the airflow. If the flame is too low or
tends to lift away from the burner , indicating
too much air, turn the shutter clockwise to
reduce the airflow .

5. Test and adjust as needed for proper flame
characteristics.

5. After the adjustment is made, retighten
screws so they are snug, and replace knob.

H

O

T

Ð20û+20û

/

Ð10û

+10û

GRIDDLE

C

+12û

OVEN

Ð12û

O

L

D

+24û

Ð24û

– 15 –

Grill or Griddle Igniter Removal

Oven Thermostat Calibration

1. For the grill, remove the grill cover, grates and
grill radiant. For the griddle, remove the
griddle assembly (see

Griddle Removal).

2. Remove the 2 Phillips head screws at the
rear of the burner and lift the burner out.

3. Remove the 2 flat head screws holding the
igniter to the support bracket on the burner .

4. Replace with new igniter and replace all parts.

Note: When aligned properly , the dimple on the
igniter bracket should fit into the notch on the
support bracket on the burner.

Igniter

The A VERAGE center oven temperature should
be 350° ±15°F for baking at the 350°F setting.
Customers may change the average center oven
temperature by ±24°F to satisfy their own
cooking needs.

To adjust the oven thermostat:

1. Pull the oven control knob off.

2. On the back of the knob, loosen both screws,
but do not completely remove.

3. With the back of the knob facing you, hold the
outer edge of the knob with one hand and turn
the back of the knob with the other hand.

4. To raise the oven temperature, turn the back
of the knob clockwise. To lower the oven
temperature, turn the back of the knob
counterclockwise.

5. After the adjustment is made, retighten
screws so they are snug, and replace knob.

Burner

GRILL OR GRIDDLE OHMMETER TEST

COMPONENT OHMS

IGNITER 45–400 OHMS COLD

VALVE 1.0 to 1.2

SWITCH 0 OHMS

L1

GRILL

SWITCH

C

NC

L1

GRILL

VALVE

GRIDDLE

OHMS

CLOSED

HEAT
LIGHT

IGNITER

H

O

T

Ð20û+20û

/

C

Ð10û

+10û

GRIDDLE

N

+12û

OVEN

Ð12û

O

L

D

+24û

Ð24û

Blower Thermal Cutout

The thermal cutout will turn on the blower in any
mode of operation when it detects a temperature
in the control area of approximately 210°F. The
blower will cycle off when temperatures cool
below 120°F .

N

GRIDDLE

SWITCH

NO

C

THERMOSTAT

VALVE

HEAT

LIGHT

IGNITER

– 16 –

Oven Select Switches

r

Select switch operation can be checked with
ohmmeter and strip circuits that show what
contacts are closed in each mode of operation.

Relays, Convection Pulser Timers and
Main Power Connection

Electrical relays and timers are located in the
compartment below the oven.

27-in. Oven

32 30 28 26 24 22 20 18 16 14 12 10

31 29 27 19 17 11 9

12-in. Oven

61 59 57 55 53 51 49 47 45 43 41

58 56 48 46 46 42 40

Remove the 2 screws from the top corners of the
bottom panel and pull straight off.

48-in. Range Models

Convection Broil
Unit Pulsar

K2 Relay

K1 Relay

K4 Relay

K3 Rela

y

Terminal

Clean Lockout Relay

Proof Timer

Clean Time

Block

Oven Thermostat

The operation of the thermostat contacts can be
checked with an ohmmeter and strip circuits.

Contacts 1 and 2 are the cycling contacts, which
are controlled by the expansion and contraction of
the helium in the capillary. Contacts 7 and 8 will
always be in the CLOSED position, except when
in the CLEAN mode of operation. (See above
illustration.)

Convection Broil
Unit Pulsar

30-in. and 36-in. Range Models

Clean Timer

K3

Relay

y

K4 Rela

y

K1 Rela

Terminal Block

– 17 –

Convection Fan Assembly

The convection fan assembly is located behind the large oven liner .

To remove the convection fan assembly:

1. Disconnect power and remove the oven door and racks.

2. Loosen the fan cover mounted by 4 screws and spacers. Lift the cover off the keyhole opening.

3. Remove the 4 screws securing the fan assembly to the mounting plate.

4. Carefully pull the fan assembly into the oven.
Note: Fan assembly is heavy.

5. Disconnect the wires to remove the assembly from the oven, and place the assembly on a flat
surface for repair.

36-in. and 48-in. Range Models

Convection
Fan

Cover
Mounting
Screws (4)

Convection
Fan

30-in. Range Models

Cover

Blade

Convection
Fan Cover
Spacer (4)

Convection
Fan Assembly
Mounting
Screws

5/22 Blade Mounting
Screws (Allen)

(4)

5/32 Blade
Mounting Screw
(Allen)

(2)

Oven Cavity
Back

Motor Cooling
Fan Blade

Convection Fan Motor
Mounting

Insulation

Assembly Mounting

Plate

Convection Fan

Wiring Compartment
Cover

Start/Run
Capacitor

Convection
Fan Motor

Plate

– 18 –

LOCKING

UNLOCKING

Lock Motor Assembly

A

The lock motor assembly is located at the center
top of the oven front frame. The assembly
consists of the mounting plate, motor, micro
switches, cam and hook assembly.

T o access the assembly:

1. Open the oven door.

2. Remove the 2 Torx screws securing the
mounting plate to the front frame and pull the
assembly out.

Door lock motor operation:

1. When the oven controls are set for CLEAN,
power is applied to the K3 relay coil, which
will energize the lock motor.

2. The lock motor drives the cam that closes
the latch CLOSED switch. As the lock hook
engages, the motor position switch will open,
supplying power to the K1 relay , which turns
the clean timer on.

3. At the end of the clean cycle, when the select
switch is pushed to off or another mode of
operation, the K4 relay will energize the lock
motor to drive the cam to the unlock position.

L2

120V.

LOCK

K3

LIGHT

RELAY

96

NO

K3

5

LM

120V.

K4 RELAY

COIL

AB

LM

RELAY

74

T STAT

CLOSED
<

550˚F

K3 RELAY

COIL

82

NC

K4

AB

K3

RELAY

93

NO

L2

LATCH

"CLOSED"

SW

CNC

K3

RELAY

74

NO

LATCH

"OPEN"

SW

CNC

K4

RELAY

96

SEL
SW

31 32

RELAY

8

NO

SEL
SW

29 30

NO

LOCK
LIGHT

L1

L1

Oven Blower Motor (36-in. and 48-in. Range

Models)

The blower motor assemblies are located on the
back of the range above each oven.

The air switch on the blower motor completes the
circuit to the oven thermostat.

Motor

Lock

Blower
Thermostat

Mounting
Plate

Motor Position
Switch

Fan
Thermostat

ir Switch

Fan Assembly

Mounting Plate
Screws (4)

Motor Mounting
Screws (2)

Fan Mounting
Plate

To remove the blower assembly:

1. Remove the cooktop burner assemblies.

2. Remove the 4 screws securing the fan
mounting plate, and pull the plate with
attached blower motor forward.

3. Remove the blower motor from its mounting
plate by loosening the 2 screws on the plate
and sliding the blower to the right.

4. Install in reverse order .

– 19 –

Oven Blower Motor (30-in. Range Models )

The blower motor assembly is located on the
back of the range above the oven. The air switch
on the blower motor completes the circuit to the
oven thermostat and hot wire relay.

To remove the blower assembly:

1. Lift off the burner cap.

2. Remove the left-side burner assembly and
disconnect the ignition wires.

3. Remove the screws at the front and back of
the air duct cover to reveal the spark module.
(See Spark Module .)

4. Lower the manifold/valve panel. (See

Component Access).

Reignition
Module

Screw

7. On the spark module, cut the wire tie securing
the module, and disconnect the spark module
from the wire harness by pulling straight off
the connector.

Spark Module

Connector

8. Lift the air duct out (with the wires still
connected to the spark module), and set it
aside.

5. Locate the bracket holding the oven
thermostat in place. Remove the 2 screws
securing the bracket, and pull the thermostat
out of the way to reveal the re-ignition module
bracket.

6. Remove the screw from the re-ignition module
bracket.

9. Locate the blower motor cover at the center
rear of the burner box. Remove the 2 screws
securing the blower motor cover , and lift the
blower motor up and into the burner box.

Screw

Blower
Motor Cover

Screw

– 20 –

Schematics and Wiring Diagrams

WARNING: Disconnect electrical power before servicing.
Caution: Label all wires prior to disconnection. Wiring errors can cause improper and dangerous

operation. V erify operation after servicing.

Oven Circuits

L2

FAN

SEL

T STAT

SW

19 20

• During bake operation the broil unit is on 1/4 wattage while bake unit is
energized.

L2

K5 RELAY

COIL

AB

31

L2

SEL
SW

19 26

FAN

T STAT

87 21

BM

BAKE 27-in Oven

ON
LIGHT

T STAT T STAT

BAKE 12-in. Oven

N

ON
LIGHT

SELSWSEL

SW

T STAT T STAT

48 4950 51 8 7

BROIL 27-in Oven

N

240V.

240V.

HEAT
LIGHT

BAKE
UNIT

12.92A 12.92A
3100W

BROIL

1

UNIT

4.17A

2000W

HEAT
LIGHT

BAKE
UNIT

11.67A 11.67A
2800W

BROIL

1

UNIT

3.75A

1800W

BROIL

UNIT 2

2000W

BROIL

UNIT

1800W

SEL
SW

CUTOUT

10119

SEL
SW

4.17A
16 9

42

SEL
SW

CUTOUT

41

40

SEL

2

SW

3.75A
41 40

HIGH
TEMP

HIGH
TEMP

L1

L1

L1

L2

FAN

SEL

T STAT

SW

19 20

• The Convection Fan will turn on as soon as the CONV switch is pressed and
will remain on until the OFF switch is pressed or another mode of operation is
selected.

• Throughout the convection mode, anytime the bake unit cycles on, the broil unit
will be cycled at approximately a 50% rate at 120 volts.

L2

K1 RELAY

74

LATCH

SEL

"CLOSED"

SW

SW

CNO

27 28 1 2

FAN

SEL

T STAT

SW

19 22 6 9

K1 RELAY

82

CONVECTION BAKE

ON
LIGHT

T STAT T STAT

87 21

BM

K1 RELAY

COIL

AB

K1 RELAY

GRILL
GRIDDLE
12" OVEN
OVEN LIGHT

N

CLEAN
TIMER

240V.

4.17A

CLEAN

ON
LIGHT

T STAT

21

WILL NOT
OPERATE
WHEN SELECT
BUTTON IS SET
FOR CLEAN

HEAT
LIGHT

BAKE
UNIT

12.92A 12.92A
3100W

BROIL

BROIL

1

UNIT

UNIT

2000W

2000W

240V.

N

HEAT
LIGHT

8.3A 8.3A

SEL
SW

17 18

2

BROIL
UNIT

2000W

4.17A

8.3A

SEL
SW

10119

1

BROIL

UNIT 2

2000W

50%

PULSER

SEL
SW

14 9

12 9

8.3A

L1

HIGH
TEMP

CUTOUT

L1

HIGH

SEL

TEMP

SW

CUTOUT

ON
LIGHT

FAN

SEL
SW

56 57

T STAT

FAN

T STAT

SEL
SW

87 21

T STAT

BROIL 12-in. Oven

BM

N

SEL
SW

N

ON
LIGHT

SEL
SW

T STAT T STAT

48 4950 53 8 7 2 1

240V.

L2

SEL
SW

19 22

K5 RELAY

COIL

AB

31

HEAT
LIGHT

BROIL

UNIT

8.3A 8.3A
2000W

SEL
SW

8.3A

17 18

HEAT
LIGHT

BROIL
UNIT

7.5A 7.5A
1800W

SEL
SW

7.5A

46 47

HIGH

SEL

1

BROIL
UNIT

2

8.3A

2000W

1

BROIL

2

UNIT

7.5A

1800W

SW

12119

SEL
SW

434240

TEMP

CUTOUT

HIGH

TEMP

CUTOUT

L1

L2

SEL
SW

58 59 1 2

K5 RELAY

COIL

AB

FAN

T STAT

31

K2 RELAY

AB

N

PROOF 12-in. Oven Only

CLEAN
TIMER

COIL

ON
LIGHT

SEL
SW

NO

7450

55

L1

240V.

N

HEAT
LIGHT

BROIL
UNIT

1800W

BROIL

1

UNIT 2

3.75A

3.75A

1800W

SEL
SW

454240

HIGH
TEMP

CUTOUT

– 21 –

36-in. Range Wiring Diagram

– 22 –

36-in Range Schematic

– 23 –

48-in. Range Wiring Diagram

– 24 –

48-in Range Schematic

– 25 –

30-in Range Schematic

– 26 –

30-in. Range Wiring Diagram

– 27 –

Gas Cooktop Wiring Diagram

– 28 –

Gas Cooktop Wiring Schematic

– 29 –

W arranty

MONOGRAM RANGE WARRANTY

Proof of original purchase date is needed to obtain service under warranty .

WHA T IS
COVERED

WHA T IS
NOT
COVERED

FULL ONE-YEAR WARRANTY
For one year from date of original purchase, we

will provide, free of charge, parts and service
labor in your home to repair or replace any part
of the range that fails because of a
manufacturing defect.

LIMITED FIVE-YEAR WARRANTY
For five years from the date of original purchase,

we will provide, free of charge, replacement gas
surface burners if they fail in normal household
use. (The grill, griddle and oven burners are not
included.) Y ou p ay for the service trip to your
home and all service labor charges.

• Service trips to your home to teach you how
to use the product.

• Discoloration of the griddle plate.

• Chipping of porcelain enamel grates.

This warranty is extended to the original
purchaser and any succeeding owner for products
purchased for ordinary home use in the 48
mainland states, Hawaii and Washington, D.C. In
Alaska the warranty is the same except that it is
LIMITED because you must pay to ship the
product to the service shop or for the service
technician’s travel costs to your home.

All warranty service will be provided by our
Factory Service Centers or by our authorized
Customer Care® servicers during normal working
hours.

Should your appliance need service, during
warranty period or beyond, in the U.S.A. call

800.444.1845. In Canada: 888.880.3030.

• Damage to the product caused by accident,
fire, floods or acts of God.

• Failure of the product if it is used for other
than its intended purpose or used
commercially.

• Replacement of house fuses or resetting of
circuit breakers.

• Incidental or consequential damage caused
by possible defects with this appliance.

• Damage after delivery.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and
you may also have other rights which vary from state to st ate. To know what your legal rights are in
your state, consult your local or state consumer af fairs office or your state’s Attorney General.
Warrantor: General Electric Company. If further help is needed concerning

Natural Gas Models

ZDP48N4G
ZDP48N6R
ZDP48N6D
ZDP36N6
ZDP36N4R
ZDP36N4D
ZDP30N4

• Improper installation, delivery or maintenance.
If you have an installation problem, contact
your dealer or installer . Y ou are responsible
for providing adequate electrical, gas,
exhausting and other connecting facilities as
described in the Installation Instructions
provided with the product.

Liquid Propane Models

ZDP48L4G
ZDP48L6R
ZDP48L6D
ZDP36L6
ZDP36L4R
ZDP36L4
DZDP30L4

– 30 –