GE DBL333, DCL333, DVL223, DBL333EY, DBL333GY Technical Service Manual
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GE Consumer Service Training
TECHNICAL SERVICE GUIDE
LARGE CAPACITY DRYERS
DBL333
DCL333
DVL223
PUB # 31-9037
IMPORTANT SAFETY NOTICE
The information in the 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 man uf acturer or seller cannot be responsib le f or
the interpretation of this information, nor can it assume any
liability in connection with it’s use.
CAUTION
T o a void personal injury , disconnect power bef ore 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, str aps , clips , nuts or w ashers 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 Service Training
Technician Service Guide
Copyright
©
1999
Table of Contents
Model Series Features
Installation Highlights
Top and Front Panel Removal
Door Gasket and Handle
Drum Glide and Upper Seal
Lower Drum Seal
Drum Removal
Drum Shaft and Bearing
Start Switch
Temperature Selector Switch
Timer
Door Switch
Control Thermostat and Heater
High Limit Thermostat
Thermal Limiter
Heat Systems
Belt Switch
Motor
Wiring Diagrams
Troubleshooting Flowcharts
Exploded Views & Part Lists
1
Model Features
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Cyc
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DBL333EY/GY - GE 5.7 Cu. Ft. Large Capacity Dryer
Features and Benefits
DCL333EY/GY - GE 5.7 Cu. Ft. Large Capacity Dryer
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= PREFERRED REGULAR SETTING
Features and Benefits
2
DVL223EY/GY - GE 5.7 Cu. Ft. Large Capacity Dryer
IN
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Features and Benefits
™
Model Nomenclature
3
Installation Specifications
Electric Dryer
Exhaust Options:
Circuit Requirements:
Electric Dryer Rating:
Note:
Installation Information:
Gas Dryer
Exhaust Options:
Circuit Requirements:
Gas Dryer Electric Rating:
Gas (BTU/HR):
4
Exhaust Ducting Length
•
DO NOT
•
NOTE: When exhausting from the side or bottom, a vent kit is available as publication
#14-A018. The vent kit replaces the existing duct inside the dryer to allow a 90° elbow
to vent the dryer out the side or bottom. The kit consists of a 6 1/2” long, 4” diameter
metal duct with attached mounted bracket and instructions. A 90° elbow is not supplied
and must be provided by the installer.
5
DRYER OPERATION
The dryer drum rotates clockwise at 48 – 54 rpm
as viewed from front. On electric models, air is
drawn into the heater housing and across the
open coils of the electric heater. On gas models,
air is drawn into the combustion chamber and over
the burner flame. The air is then pulled through
the tumbling clothes, picking up moisture and lint.
Lint is filtered out as air passes from the drum,
across the filter screen and into the blower duct,
where it is discharged out the vent. The bias
control thermostat, according to the setting of the
fabric selector switch, controls the air temperature.
The length of the drying cycle is controlled by the
number of minutes selected on the timer or automatically controlled by the timer, in conjunction
with the thermostat, for the type of fabric selected
(automatic dry cycles).
ACCESSING THE DRYER COMPONENTS
Top Panel Removal
The top panel is held in place by two spring clips
located at the front of the dryer and two tabs located
at the back. To release the clips, use a stiff putty
knife inserted between the top and front panel at
the locations shown at right. Holding the putty knif e
in a horizontal position, push in on one spring clip to
release that edge of the top. Repeat with the other
clip, lift the top at the front and disengage it from the
tabs at the rear.
2 Phillips screws
Starting at the top edge, pull the front panel forward.
3 guide clips align the front panel to the sides. Once
the clips are released, lift the front panel to remove.
Guide Clips
ORE DRY
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Front Panel Removal
The remove the front panel, disconnect power and
remove the top panel. Once the top panel is off,
remove the two Phillips screws, one on each side,
located on the top inside edge of the front panel.
Disconnect the two wires from the door switch.
Air Duct
Air Duct Seal
Front Panel Air Duct
The front panel air duct is glued to the front panel.
Should the air duct need to be replaced, an air duct
seal will also be required. The foam air duct seal is
gluded to the air duct and seals between the duct
and the opening for the blo wer wheel on the blo wer
housing. To replace the air duct or install a replacement front panel, remove the front panel, remove
the lint filter, remove the 2 Phillips screws from the
lint trap cover and remov e the lint tr ap cov er . Using
a sharp knife, cut the adhesive between the air duct
and the front panel. If reinstalling the original front
panel, use a putty knife to remove as much of the
old adhesive as possible. Apply adhesive along the
edge of the air duct and position it on the front panel.
6
Apply a bead of WH60X20 adhesive on the air duct
seal and position it on the air duct. Reinstall the lint
trap cover and filter, front and top panel.
Door Gasket
The door gasket is secured to the door panel by
tabs. To replace the gasket, pull the old gasket off
the inner door panel, align the new gasket tabs with
the slots in the door and press the gasket into place.
Door Handle
The door handle is secured to the outer door panel
by tabs. To replace the door handle, remove the
door from the front panel and remove the screws
from the sides and bottom of the door. Separate
the inner and outer door panels. Release the tabs
that secure the door handle to the front panel.
Rear Access Panel
The rear access panel allows access to view the
motor, centrifugal s witch, idler pulley assembly, belt
and belt switch. The panel is secured to the back b y
two Phillips screws.
Mini Manual
Heat Deflector Shield
Drum Glide and Upper Seal
The drum glide is glued to the top outer edge of the
door opening and is a part of the felt upper drum
seal. To replace the drum glide/upper seal assembly ,
raise the top panel, remove the two Phillips screws
on the front panel and pull the front panel towards
you. Remove the old seal assembly and glue the
new seal in place using WH60X20 adhesive.
Reinstall the front and the top panels.
Drum Glide and Upper Seal
Rear Access Panel
NOTE: Located on the rear of the dryer is a heat
deflector shield. The purpose of the shield is to
prevent someone from coming in contact with the
hot part of the cabinet near the heater. If y ou remove
the shield for any reason, make certain to reinstall
the shield upon dryer reassembly.
Lower Drum Seal
The lower drum seal is glued in place around the
outer lower edge of the door opening on the front
panel. To replace the lower seal, remove the top
panel and the front panel. Remo ve the old seal and
glue a new seal in place. Reinstall the front and top
panels.
7
Dryer Drum Removal
Drum Bearing
To remove the dryer drum, disconnect power and
remove the top and front panels. Next, remove the
yellow spacer/bumper attached to the top cross
brace by a Phillips screw.
Drum Spacer/Bumper
Remove the drive belt from the motor drive pulley
by reaching under the drum from the front or through
the rear access opening. Once the belt is loose , the
drum must be lifted
straight up to disengage
the drum shaft from the
drum bearing. Once the
shaft ball is above the
drum bearing cup, pull the
Drum
Shaft
Drum
Bearing
drum forward through the
cabinet opening.
The drum bearing mounts to the inside rear of the
dryer cabinet by means of a sheet metal bracket
secured by two 5/16” screws. To replace, remove
the two screws holding the bearing to the back of
the dryer. Note: A small steel ball is used to keep
the shaft aligned in the bearing. Thoroughly lubricate
the new bearing with lithium grease and reassemble.
Drum Shaft
The drum shaft is attached to the drum by three
Torx screws. To replace the drum shaft, align the
mounting holes and use a piece of tape to hold the
shaft in place while installing the Torx screws from
inside the drum. Thoroughly lubricate the shaft ball
with Lubriplate or a high quality lithium grease.
Drum V anes
All three dryer drum vanes are replaceable. Each
vane is attached to the drum by two Phillips screws.
NOTE: If necessary, the drum shaft and bearing are
available as a kit under the part# WE25X10001. The
kit contains the drum shaft, shaft bearing, mounting
brackets , a steel ball, screws and a tube of Lubriplate,
a high quality lithium grease.
8
Dryer Controls
Timer
To access the dryer controls, disconnect power and
remove the four Phillips screws at the top of the
switch trim. Grasp the trim at the top and pull forward.
Three tabs at the bottom fit into slots on the top panel.
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Start Switch
The start switch energizes the start windings on the
drive motor. It is a momentary contact, rotary switch.
To test the switch, remove the wires and check for
continuity between the switch terminals. There
should be continuity only while turning the switch
clockwise. Once released, the terminals should read
open. Should the switch need to be replaced, turn
the switch clockwise (as viewed from the back) to
release it from the switch trim.
The timer is an electromechanical control with a 120v
drive motor. Depending upon the model, the timer
will control cycles for timed fluff (no heat), timed dry ,
automatic cottons and/or automatic permanent
press. On a timed cycle, the timer motor receives
120 volts continuously for the number of minutes
selected for the cycle. When an automatic cycle is
chosen, the time will vary based of the quantity of
clothes and their moisture content. When the heat
source is on, the timer motor does not receive power .
When the clothes warm and the control thermostat
is satisfied, the heat is turned off and voltage is then
supplied to the timer motor. When the thermostat
cools, the heat is again turned on and the timer stops.
As the clothes dry, the control thermostat reaches
temperature faster and the timer motor receives
power more often until the end of cycle is reached.
Temperature Selector Switch
The rotary temperature selector switch, one of the
controls on the model DBL333, allows the customer
to select different temperature settings for drying.
The switch contains a 3K ohm resistor on the electric
model and a 2.4K ohm resistor on the gas model.
On the “Medium” setting, the selector switch
activates a control thermostat bias heater, which is
in series with the resistor on the switch. To check
the switch, disconnect power , remove the wires from
the switch and check
for continuity. With the
4
switch set on “Regular”
setting, there should be
continuity only between
terminals 1 and 2. On
the “Medium” setting,
there should be
continuity only between
terminals 3 and 4. On a “Fluff” setting, there should
be no continuity between either set of terminals.
3
Resistor
5
21
Timer Bar Chart
T o diagnose the timer , use the timer bar chart located
on the mini manual behind the switch trim. Rotate
the timer to a point in the particular cycle you want
to check. Find the appropriate location the timer
pointer is set in the cycles across the first column.
Read vertically down the chart from that point. At
each point you cross a shaded row, the contacts
listed at the left on the same row should have
continuity. Note the shaded areas are proportional
to the total time, so take several continuity
measurements at different points within the cycle
before determining the timer needs replacement.
9
Depending on the dryer model, the timer can have
one or two resistors connected to it. Refer to the
wiring diagram with the dryer.
Automatic Dry
Resistor
Medium Heat
Resistor
On electric model dryers with an automatic dry cycle,
a 4.4K ohm resistor is used in series with the heater
to reduce the 240 volts to 120 volts and run the timer
motor when the control thermostat is open.
NOTE: The automatic dry cycle resistor resembles
a jumper wire between the terminals TM and R on
the timer.
Door Switch
The door switch is a normally open switch wired in
series with the drive motor. When the door is closed
and the motor running, a circuit is completed through
the motor’s run winding. To test the switch, remove
the top panel and wires from the switch. When the
door is closed, the switch should read continuity.
When the door is open, the switch should read open.
To replace the switch, squeeze the retaining clips
together and pull the switch from the front of the
dryer.
Control Thermostat and Bias Heater
The control thermostat regulates the temperature
inside the dryer drum. It is a single pole, single throw
switch wired in series with the high limit (or safety)
thermostat and the heat source. It is mounted on
the front of the blower housing. The control
thermostat also contains a bias heater. The purpose
of the bias heater is to apply a small amount of heat
to the control thermostat when the fabric selector
switch is set to the medium temperature setting. This
small amount of heat causes the thermostat to open
sooner to maintain a lower drum temperature.
MEDIUM HEAT
RESISTOR
4.4K OHM RESISTOR
A second type resistor will be used on gas or electric
model dryers with a medium heat setting. This
resistor is wired in series with the bias heater on the
control thermostat to cycle the thermostat at a lower
temperature.
To replace the timer, remove the timer knob and the
two Phillips screws under the knob .
THERMOSTAT
TERMINALS
BIAS HEATER
TERMINALS
NOTE:
The control thermostats are not interchangeable
between an electric and a gas dryer. The resistance
of the bias heater is 28K ohms on the electric dryer
and 7K ohms on the gas dryer.
10
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