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American Dryer Corp WDA-385 service manual E. dSFL Display Condition

Models: WDA-385

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E. "dSFL" Display Condition

E. "dSFL" Display Condition

When the display reads "dSFL" this condition indicates a fault in the microprocessor controllers heat circuit. This circuit includes the microprocessor controller, microprocessor temperature sensor (located in lint compartment) and wires to and from these two (2) points.

1.Check to see if microprocessor controller has 1/8 amp fuse on the board, if it does check with out ohm meter. If no continuity replace with ADC P/N: 136048. If fuse repeatedly burns out go to step 4.

2.Check for loose connection at the microprocessor sensor bracket harness connector (located in lint compartment), and the microprocessor 15 position connector at the microprocessor controller.

3.Discontinue power to dryer. Disconnect the microprocessor 15 position connector from microprocessor controller and locate connector holes no. 10 and 15. Disconnect sensor harness from sensor bracket assembly (located in the lint compartment). Check for continuity across each wire from harness connector in lint compartment to appropriate microprocessor 15 position connector hole (10 and 15). If no continuity, problem is break in wire or termination.

4.Check for continuity across each microprocessor sensor wire (microprocessor 15-position connector hole no. 10 and 15) to ground. If continuity is evident, problem is wire pinched to ground somewhere behind the front panel area.

5.If above procedures check out okay, problem is a defective microprocessor temperature sensor.

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American Dryer Corp WDA-385 service manual E. dSFL Display Condition

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 InformationImportant Information A. Safety PrecautionsSECTION SECTION Routine MaintenanceA. Cleaning B. Adjustments C. LubricationSECTION Installation RequirementsA. Enclosure, Air Supply, and Exhaust Requirements C. Operational Service Check Procedure B. Electrical and Gas RequirementsPage B. Control Box Description of PartsA. Control Panel C. Coin Box and VaultF. Tumbler D. Main Door SwitchE. Lint Coop H. Idler Bearing I. Motor AssemblyG. Tumbler Bearing and Pulley Arrangement J. Temperature Sensors K. Sail SwitchN. Hi-Limit Thermostat L. Motor Contactor 1Ø MotorM. Non-Reversing Contactor 3Ø Motor SECTION To Replace Control Panel AssemblyServicing To Replace Computer To Replace Keypad refer to illustration aboveTo Remove Optic Switch To Replace Coin AcceptorNOTE DO NOT remove screws To Replace Microprocessor Temperature Sensor ProbeTo Replace Motor Contactor 2-Pole, 24VAC 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 FLAMETo Replace Hi-Limit Thermostat 330º B. Thermostats and Temperature SensorTo Replace DSI Module 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 reinstallationNOTE Check belt alignment before operating dryer E. Tumbler and Bearing Assembly Remove backguard to access assemblyTo Replace Tumbler Pulley NOTE Check alignment of pulleys before operating dryer To Replace Rear Tumbler BearingIMPORTANT LOCTITE NOW BEING USED 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 Alignment - Motor To Idler V-Belt Tension Adjustment-Tumbler To IdlerI. V-Belts refer to illustration in Sections I, J and K 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 SECTION Technical InformationA. Data Label 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 B6726112* 05/21/98-50 ADC4501791- 01/08/98-50