GE Monogram ZBD1800K Series Technical Service Manual
GE Consumer & Industrial
TECHNICAL SERVICE GUIDE
Monogram 18-In. Built-In
Comp act Dishwasher
MODEL SERIES:
ZBD1800K
PUB # 31-9123 7/04
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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.
W ARNING
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
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TABLE OF CONTENTS
Bottom Door Seal.................................................................................................19
Component Locator Views .....................................................................................7
Control Panel Features ..........................................................................................6
Detergent/Rinse Module ....................................................................................... 15
Dishwasher Components ................................................................................... 10
Dishwasher Tub Seal .......................................................................................... 20
Door Assembly..................................................................................................... 17
Door Panel ...........................................................................................................14
Door Switch and Latch Assembly ........................................................................ 12
Drain Pump Assembly .......................................................................................... 24
Fill Funnel ............................................................................................................. 21
Heating Element ...................................................................................................20
Illustrated Parts Catalog ....................................................................................... 40
Introduction............................................................................................................ 4
Motor Pump Assembly ........................................................................................ 25
Nomenclature ........................................................................................................ 5
Pressure Switch .................................................................................................. 23
Schematic ............................................................................................................ 39
Side Panels .......................................................................................................... 16
Specifications ......................................................................................................... 4
Static Dry System.................................................................................................13
Sump Assembly ................................................................................................... 27
Timer .................................................................................................................... 10
Troubleshooting.................................................................................................... 29
Troubleshooting Checklist .................................................................................... 34
Troubleshooting the Door Switch .........................................................................29
Troubleshooting the Heating Element...................................................................30
Troubleshooting the T imer.................................................................................... 31
Troubleshooting the W ash Pump Motor ............................................................... 32
Troubleshooting the W ater Fill V alve.....................................................................32
Warranty...............................................................................................................46
Washability Complaints........................................................................................38
Water V alve .......................................................................................................... 22
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Introduction
Electrical
The new Monogram 18" Built-In Compact Dishwasher has a size that
allows the unit to fit in areas as small as 18 inches (45.72 cm) wide, 22
inches (55.88 cm) long, and 34 inches (86.36 cm) high. It is compact in
size, yet delivers the performance of larger units. With a low power
®
usage, this product model meets ENERGY STAR
guidelines for
energy efficiency.
The Monogram 18" Built-In Compact Dishwasher has two wash levels,
a HEA VY W ASH cycle, NORMAL W ASH cycle, LIGHT W ASH cycle,
CHINA CRYSTAL cycle, and a RINSE ONLY cycle.
Specifications
Rating 120 Volts, 60 Hz ±10%
Separate Circuit 4.5 to 5.5 Amps
Motor (HP) 1/5
Motor (Amps) 1 ±10%
Heater Wattage – Wash/Dry 465 ±10%
Total Amps (Load Rated) 5 ±10%
Component Resistance (OHMS)
Timer Motor 1460 ±10%
Heating Element 31 ±5%
Pump Motor Windings
Drain
Wash (Blue to Red)
Run Windings – Main
(Blue to Black)
Water Valve Solenoid 1140 ±5%
Total Amps (Load Rated) 5 ±10%
Water Supply
Suggested Minimum
Incoming Water Temperature
Sump Water Temperature
With Outer Door In Place
Water Charge 2.54 to 3.27 Quarts
Pressure 20 Min./120 Max. (PSI)
Connection (NPT) 3/8 In. (0.95 cm)
Consumption (Total) 4.7 to 6.1 Gallons
Water Valve Fl ow Rate
(GPM)
Water Circulation Rate (GPM) 10 ±10%
Water Fill Time (Seconds) 30 (±1)
27 ±10%
47 ±10%
22 ±10%
120 °F to 150 °F
(49 °C to 66 °C)
145 °F ±5 °F
(63 °C ±3 °C )
(2.4 to 3.1 Liters)
138 Min./827 Max. (kPa)
(17.8 to 23.1 Liters)
1.8 ±14%
(6.81 LPM ±14%)
(37.85 LPM ±10%)
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Model Number
Nomenclature
Z B D 1 8 0 0 K 0 0 S S
Brand
Z = Monogram
Product Type
BD = Built-In Dishwasher
Model Designator
Compact 18-in.
Nomenclature
Exterior Color
BB = Black
CC = Bisque
SS = Stainless Steel
WW = White
Engineering Model Suffix
Model Year Designator
Serial Number
The first two characters of the serial number identify
the month and year of manufacture.
Example: AG123456S = January , 2001
The serial plate of your
dishwasher is located on the
tub wall, just outside the
door.
The service information sheet is
located under the control panel.
A - JAN 2005 - H
D - FEB 2004 - G
F - MAR 2003 - F
G - APR 2002 - D
H - MAY 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
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The letter designating
the year repeats every
12 years.
Example:
T = 1974
T = 1986
T = 1998
Control Timer:
Control Panel Features
St atic Vent
Door Latch Switch Control Timer
START
HEA VY WASH
NORMAL W ASH
LIGHT W ASH
CHINA CRY STAL
RINSE ONL Y
Door Latch
Switch:
Close the dishwasher door and turn the control timer knob to the desired setting.
Water fill begins and approximately 30 seconds later , the wash action begins.
This cycle is for heavily soiled dishes and glassware.
This cycle is for medium-soiled dishes and glassware.
This cycle is for everyday dishes and glassware.
This cycle is specifically designed for lightly soiled china and crystal.
For rinsing partial loads that will be washed later. Do not use detergent with this cycle.
Automatically shuts off the dishwasher whenever the dishwasher door is opened. The
dishwasher will not resume operation until the door is closed.
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Component Locator Views
Front View
Insulation
Control Panel
Side Panel
Access Panel
Control Panel View
St atic Vent
Door Latch Switch Control Timer
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Interior View (With Racks)
Top Rack
Bottom Rack
Detergent/Rinse Module
St atic Dry V ent
Detergent/Rinse Module Compartment View
Detergent
Compartment
Sight Glass
Rinse Agent Cap
Compartment Lid
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Interior View of Basin (With Racks Removed)
Spray Arm
Heating Element
Filter Assembly
Right Side View
(Side Panel and Insulation Removed)
Door Tension Spring
Fill Funnel
Pressure
Switch Hose
Fill Hose
Microfilter
Bottom View (Looking Up)
Clamp Nut
Sump
Motor Pump
Assembly
Drain Pump
Capacitor
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Dishwasher Components
Throughout this manual, features and appearance
may vary from your model.
Timer
WARNING: Always turn off the electric power
supply before servicing any electrical component,
making ohmmeter checks, or replacing any parts.
Note: All voltage checks should be made with a
voltmeter having a full-scale range of 130 volts or
higher. After service is completed, be sure all
safety grounding circuits are complete, all
electrical connections are secure, and all access
panels are in place.
The timer allows the user to select the various
cleaning cycles of the dishwasher. The timer
controls all stages of each cycle. All electrical
functions can be traced on the charts and
diagrams provided in this service manual.
Mark the inside of
the hole threads with
a felt-tip marker.
Removal and Installation
1. Disconnect the electric supply from the
dishwasher.
2. Remove the control timer knob from the
control panel cover .
Control Timer Knob
3. Remove the top screw and mark the hole
threads with a felt-tip marker.
4. Remove the bottom screw and mark the hole
threads with a felt-tip marker .
5. Open the dishwasher door.
6. Remove the 6 screws that connect the control
panel cover to the dishwasher door.
7. Close the dishwasher door.
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8. Release the door latch and allow the control
panel cover to hang against the dishwasher
door.
Timer
Control Panel
9. Disconnect the ground wire from the timer.
10. Disconnect the connectors. (Refer to minimanual or schematic diagram on page 39 for
reconnection.)
Note: When installing the timer, it is important to
align the threaded holes (A) and (B), marked in
steps 3 and 4, with holes (A) and (B) in the control
panel
Threaded Hole (A)
Threaded Hole (B)
Align the threaded holes
marked in steps 3 and 4
with the holes in the
control panel.
White Connector
B
A
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Door Switch and Latch Assembly
The door switch and latch assembly is located on
the door assembly behind the control panel cover .
The dishwasher will not operate until the door is
closed, the latch engages the door catch (holding
the door firmly against the seal), and the normally
open contacts of the double-pole, single-throw
door safety switch are closed.
Removal and Installation
1. Disconnect the electric supply from the
dishwasher.
2. Open the dishwasher door.
Caution: Place a cloth or cardboard between the
control panel and the dishwasher door to prevent
marring the door .
3. Remove the 6 screws that connect the control
panel cover to the dishwasher door. (See
Timer, step 6.)
4. Close the dishwasher door.
5. Release the door latch and allow the control
panel cover to hang against the dishwasher
door.
Note: There are 6 terminals on the door switch.
The top 2 terminals (1) and (2) are not used. The
middle 2 terminals are marked (3) and (4). The
bottom 2 terminals are marked (5) and (6).
7. Remove the 4 screws that connect the door
switch mounting bracket to the control panel
cover.
8. Pull the door switch assembly down far
enough so that the door latch cup clears the
door latch mounting bracket.
Switch
Assembly
Cup
Pull
Bracket
9. Remove the door switch from the door latch
mounting bracket.
10. Inspect the door latch spring. Make sure the
door latch flap fits properly in the door latch
flap hole. If the spring is misaligned, broken,
or missing, insert a new spring in the spring
post holes.
6. Tag and disconnect the 4 wire terminals from
the door switch.
Flap
Spring
– 12 –
Static Dry System
The static dry system operates through a vent
located in the control panel. The vent allows hot
air to exit the dishwasher tub and gradually
remove moisture.
Removal
1. Open the dishwasher door.
6. Inspect the gasket on the channel assembly.
If the gasket shows obvious signs of wear or
damage, replace the channel assembly.
2. Remove the 6 screws that connect the control
panel cover to the dishwasher door. (See
Timer, step 6.)
3. Release the door latch and allow the control
panel cover to hang against the dishwasher
door.
4. Remove the static vent channel cover and
assembly as shown below. Inspect the cover
for hard water/lime deposits or debris, and
clean if necessary.
Cover
Channel
Gasket
Installation
1. Insert the static vent channel through the
static vent door hole.
Hole
Channel
5. Inspect the o-ring. If the o-ring shows obvious
signs of wear or damage, replace the channel
assembly.
2. Install the static vent cover to the static vent
channel, and position the control panel cover
on the dishwasher door.
O-Ring
(Continued next page)
– 13 –
Door Panel
Note: Make sure the edge of the control panel
cover is flush with the edge of the door.
3. Align the screw holes on the control panel with
the screw holes on the dishwasher door.
Cover
Make sure the edge
of the control panel
cover is flush with
the edge of the door.
The door panel covers the door to the dishwasher
and protects the detergent/rinse module
electronics.
Removal
1. Disconnect the electric supply from the
dishwasher.
2. Open the dishwasher door.
3. Remove the 6 screws and the door panel
from the door assembly. Do not remove the 6
screws that hold the control panel cover to the
door assembly.
4. Install the 6 screws that connect the control
panel cover to the dishwasher door.
Door Panel
– 14 –
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