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American Dryer Corp WDA-385 service manual Servicing, To Replace Control Panel Assembly, Section

Models: WDA-385

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Servicing

SECTION V

Servicing

ALL electrical/mechanical service or repairs should be made with the electrical power to the dryer disconnected (power off).

WARNING: PERSONAL INJURY COULD RESULT

The information provided in this section should not be misconstrued as a device for use by an untrained person making repairs. Service work should be performed by competent technicians in accordance with local, state, and federal codes.

When contacting the factory for assistance, always have the dryer model and serial numbers available.

CAUTION: Observe ALL safety precautions displayed on the dryer or specified in this manual before and while making repairs.

Before considering replacement, make sure that ALL connectors are in place and making proper contact. Check input voltages and temperature sensor. After replacing any parts or performing adjustments or service run through a complete cycle.

To Replace Control Panel Assembly

1. Disconnect power to the dryer.

2. Disconnect main power harness from rear of computer by squeezing locking tab and pulling connector straight back.

3. Disconnect the green ground wire from the computer.

4. Disconnect coin acceptor optic switch connector from 15 pin harness.

5. To remove control panel assembly from the control box, gently tap the bottom of the control panel upward and lift off the hinges.

6. Install new control panel assembly by reversing this procedure.

7. Be sure to check or reset programs.

NOTE: Use caution when handling MP Controller. Easily damaged by static electricity.

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American Dryer Corp WDA-385 service manual Servicing, To Replace Control Panel Assembly, Section

Contents

1996 thru Service ManualADG-385/WDA-385 121396MFM/tfRetain 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 SERVICINGDRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATIONFOR YOUR SAFETY Installation Requirements Table of ContentsMaintenance Important InformationTrouble Shooting Technical InformationA. Safety Precautions SECTIONImportant Information Routine Maintenance A. CleaningSECTION B. Adjustments C. LubricationInstallation Requirements A. Enclosure, Air Supply, and Exhaust RequirementsSECTION C. Operational Service Check Procedure B. Electrical and Gas RequirementsPage B. Control Box Description of PartsA. Control Panel C. Coin Box and VaultD. Main Door Switch E. Lint CoopF. Tumbler I. Motor Assembly G. Tumbler Bearing and Pulley ArrangementH. Idler Bearing J. Temperature Sensors K. Sail SwitchL. Motor Contactor 1Ø Motor M. Non-Reversing Contactor 3Ø MotorN. Hi-Limit Thermostat To Replace Control Panel Assembly ServicingSECTION To Replace Computer To Replace Keypad refer to illustration aboveTo Remove Optic Switch To Replace Coin AcceptorTo Replace Microprocessor Temperature Sensor Probe To Replace Motor Contactor 2-Pole, 24VACNOTE DO NOT remove screws A. Burner Controls Gas To Replace Spark Ignitor To Replace Gas ValveTo Replace Main Burner Orifices See Chart On Following Page To Test and Adjust Gas Water Column PressureTo Replace Burner Tubes NEVER TEST FOR LEAKS WITH A FLAMEB. Thermostats and Temperature Sensor To Replace DSI ModuleTo Replace Hi-Limit Thermostat 330º To Remove The Temperature Sensor or High Heat Protector C. Sail Switch Assembly To Replace Sail SwitchD. Front Panel and Main Door Assemblies To Adjust Sail SwitchTo Replace Main Door Switch Steel Door TO REPLACE MAIN DOOR ASSEMBLY STEEL DOORTO INSTALL NEW MAIN DOOR GLASS To Replace Front Panel NOTE Identify location of each wire for correct reinstallationE. Tumbler and Bearing Assembly Remove backguard to access assembly To Replace Tumbler PulleyNOTE Check belt alignment before operating dryer To Replace Rear Tumbler Bearing IMPORTANT LOCTITE NOW BEING USEDNOTE Check alignment of pulleys before operating dryer To Replace The Front Tumbler Bearing Remove backguard to access assembly F. Idler and Bearing AssemblyTo Replace Idler Pulley NOTE Check tension and alignment of belts before operating dryerTo Replace Idler Bearing G. Drive PulleyH. Tumbler basket Tumbler Alignment vertical Tumbler Alignment lateralTo Replace The Tumbler and/or Tumbler Support NOTE Identify location of each wire for correct re-installationIN PLACE. ONCE SET SCREWS HAVE BEEN IMPORTANT LOCTITE NOW BEING USEDLOCTITE ADHESIVE HAS BEEN USED TO SECURE SET SCREWS AND BEARINGS REMOVED, A GEAR PULLER MAY BE NECESV-Belt Tension Adjustment-Tumbler To Idler I. V-Belts refer to illustration in Sections I, J and KV-Belt Tension Alignment - Motor To Idler K. Impeller To Replace V-BeltsJ. Motor To Replace Motor L. Lintscreen To Replace LintscreenDiagnostic L.E.D. Display Failure Codes Trouble ShootingA. Phase 5 Coin System Diagnostics SECTIONL.E.D. Display Indicators Microprocessor Controller Relay Output L.E.D. IndicatorsNOTE 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 Technical Information A. Data LabelSECTION 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 B672611ADC450179 1- 01/08/98-502* 05/21/98-50