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American Dryer Corp
WDA-385 service manual A. Burner Controls Gas
Models:
WDA-385
1
22
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Troubleshooting
Install
To Replace Main Burner Orifices See Chart On Following Page
Maintenance
NOTE If the dryer is started the L.E.D. display indicator dots are on and there are no outputs heat and/or motor output L.E.D.s are off and the dOOr input L.E.D. is on, the fault is in the Phase 5 coin microprocessor controller computer itself. If the failure was elsewhere i.e., dryers door switch circuit the L.E.D. display would read dOOr if a keyboard entry was attempted. If the L.E.D. display indicators are on and the door L.E.D. input and motor/heat output L.E.D.s are on and the motor and/or heat is not active ON, then the problem is not the door switch circuit or the Phase 5 coin microprocessor controller the problem is else where in the dryer
A. Phase 5 Coin System Diagnostics
I. Motor Assembly
C. Operational Service Check Procedure
B. Adjustments
J. Temperature Sensors
Page 22
Image 22
A. Burner Controls
(Gas)
18
Page 21
Page 23
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Contents
1996 thru
Service Manual
ADG-385/WDA-385
121396MFM/tf
Retain This Manual In A Safe Place For Future Reference
“IMPORTANT NOTE TO PURCHASER”
CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYERS
VERIFY PROPER OPERATION AFTER SERVICING
DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION
FOR YOUR SAFETY
Installation Requirements
Table of Contents
Maintenance
Important Information
Trouble Shooting
Technical Information
SECTION
A. Safety Precautions
Important Information
A. Cleaning
Routine Maintenance
SECTION
B. Adjustments
C. Lubrication
A. Enclosure, Air Supply, and Exhaust Requirements
Installation Requirements
SECTION
C. Operational Service Check Procedure
B. Electrical and Gas Requirements
Page
B. Control Box
Description of Parts
A. Control Panel
C. Coin Box and Vault
E. Lint Coop
D. Main Door Switch
F. Tumbler
G. Tumbler Bearing and Pulley Arrangement
I. Motor Assembly
H. Idler Bearing
J. Temperature Sensors
K. Sail Switch
M. Non-Reversing Contactor 3Ø Motor
L. Motor Contactor 1Ø Motor
N. Hi-Limit Thermostat
Servicing
To Replace Control Panel Assembly
SECTION
To Replace Computer
To Replace Keypad refer to illustration above
To Remove Optic Switch
To Replace Coin Acceptor
To Replace Motor Contactor 2-Pole, 24VAC
To Replace Microprocessor Temperature Sensor Probe
NOTE DO NOT remove screws
A. Burner Controls Gas
To Replace Spark Ignitor
To Replace Gas Valve
To Replace Main Burner Orifices See Chart On Following Page
To Test and Adjust Gas Water Column Pressure
To Replace Burner Tubes
NEVER TEST FOR LEAKS WITH A FLAME
To Replace DSI Module
B. Thermostats and Temperature Sensor
To Replace Hi-Limit Thermostat 330º
To Remove The Temperature Sensor or High Heat Protector
C. Sail Switch Assembly
To Replace Sail Switch
D. Front Panel and Main Door Assemblies
To Adjust Sail Switch
To Replace Main Door Switch Steel Door
TO REPLACE MAIN DOOR ASSEMBLY STEEL DOOR
TO INSTALL NEW MAIN DOOR GLASS
To Replace Front Panel
NOTE Identify location of each wire for correct reinstallation
To Replace Tumbler Pulley
E. Tumbler and Bearing Assembly Remove backguard to access assembly
NOTE Check belt alignment before operating dryer
IMPORTANT LOCTITE NOW BEING USED
To Replace Rear Tumbler Bearing
NOTE Check alignment of pulleys before operating dryer
To Replace The Front Tumbler Bearing
Remove backguard to access assembly
F. Idler and Bearing Assembly
To Replace Idler Pulley
NOTE Check tension and alignment of belts before operating dryer
To Replace Idler Bearing
G. Drive Pulley
H. Tumbler basket Tumbler Alignment vertical
Tumbler Alignment lateral
To Replace The Tumbler and/or Tumbler Support
NOTE Identify location of each wire for correct re-installation
IN PLACE. ONCE SET SCREWS HAVE BEEN
IMPORTANT LOCTITE NOW BEING USED
LOCTITE ADHESIVE HAS BEEN USED TO SECURE SET SCREWS AND BEARINGS
REMOVED, A GEAR PULLER MAY BE NECES
I. V-Belts refer to illustration in Sections I, J and K
V-Belt Tension Adjustment-Tumbler To Idler
V-Belt Tension Alignment - Motor To Idler
K. Impeller
To Replace V-Belts
J. Motor To Replace Motor
L. Lintscreen To Replace Lintscreen
Diagnostic L.E.D. Display Failure Codes
Trouble Shooting
A. Phase 5 Coin System Diagnostics
SECTION
L.E.D. Display Indicators
Microprocessor Controller Relay Output L.E.D. Indicators
NOTE If the dryer is started the L.E.D. display indicator dots are on and there are no outputs heat and/or motor output L.E.D.s are off and the dOOr input L.E.D. is on, the fault is in the Phase 5 coin microprocessor controller computer itself. If the failure was elsewhere i.e., dryers door switch circuit the L.E.D. display would read dOOr if a keyboard entry was attempted. If the L.E.D. display indicators are on and the door L.E.D. input and motor/heat output L.E.D.s are on and the motor and/or heat is not active ON, then the problem is not the door switch circuit or the Phase 5 coin microprocessor controller the problem is else where in the dryer
B. No Heat Condition
Page
C. No Start Condition
D. No Display Condition
Page
E. dSFL Display Condition
F. dOOr Display Condition
A. Data Label
Technical Information
SECTION
B. Using A Manometer
C. L.E.D. Display Codes
D. Computer Logic and Wiring Diagram
Diagrams for this book are as follows
including ALL revisions of the number listed below B672611
1- 01/08/98-50
ADC450179
2* 05/21/98-50