ADC 450428 Servicing, Introduction, Computer Controls, To Replace Computer Control Panel

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SECTION V

SERVICING

INTRODUCTION

ALL electrical and 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.

A. COMPUTER CONTROLS

To Replace Computer Control Panel

1. Discontinue electrical power to the dryer.

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

3. Disconnect the “green” ground wire from the computer.

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

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

6.When replacing the computer, the “A” and “B” factors must be reprogrammed. (refer to Phase 6 OPL User’s Manual [ADC Part No. 113022].)

NOTE: The “A” and “B” factors are printed on a label located on the rear of the control panel. (refer to illustration above.)

7. Reestablish electrical power to the dryer.

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Contents American Dryer Corporation ML-130Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Phase 6 OPL System Diagnostics Important Information Safety PrecautionsStandards Cleaning Routine MaintenanceMATERIALS, GASOLINE, and Their Flammable Vapors Lubrication AdjustmentsENCLOSURE, AIR SUPPLY, and Exhaust Requirements Installation RequirementsElectrical and GAS Requirements Operational Service Check Procedure Page HSI HOT Surface Ignition Module Gas Models Only Description of PartsControl BOX Drive MotorIdler Assembly GAS Burner AssemblyBlower Motor and Impellor Tumbler Basket Bearing and Pulley Arrangement Main Door SwitchTumbler Basket Manual Reset Thermostat Sail Switch Gas and Electric Models OnlyHI-LIMIT Gas and Electric Models Only Lint Drawer Lint Drawer SwitchSteam Damper System To Replace Computer Control Panel ServicingIntroduction Computer ControlsTo Replace Microprocessor Temperature Sensor Probe To Replace Keyboard Touchpad Label AssemblyTo Replace Computer To Remove Hot Surface Ignitor refer to illustration above Ignition ControlsHSI Ignitor Flame Sensor Probe To Remove Flame Sensor ProbeTo Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Convert from Natural Gas to L.P. Gas To Replace HSI Hot Surface Ignition Module To Replace Burner TubesThermostats Page Personal Injury or Fire could Result Sail Switch Assembly Gas and Electric Models OnlyTo Replace Sail Switch To Adjust Sail SwitchTo Install New Main Door Glass To Replace Main Door AssemblyTo Replace Main Door Hinge Block To Replace Front PanelTo Replace Tumbler Basket Pulley PulleysTo Replace Small Idler Pulley To Replace Motor Pulley To Replace Large Idler PulleyTumbler Basket Alignment Vertical Up and Down Adjustment Tumbler Basket AssemblyTo Replace Tumbler Basket or Tumbler Basket Support Tumbler Basket Alignment Lateral Side to Side AdjustmentTo Replace Front Tumbler Basket Support Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block Bearing To Replace Front Idler Shaft Pillow Block BearingTo Replace V-Belts Belt Tension Adjustment Tumbler Basket to IdlerBelt Tension Adjustment Motor to Idler BeltsTo Replace Drive Motor MotorsTo Replace Impellor Motor Fan Shaft Drive To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint ScreenImpellor No display on computer TroubleshootingComputer will not accept keyboard touchpad entries Dryer operates but is taking too long to dry Dryer will not start, but computer display indicators are onThermal overload for drive motor is tripping Burner hi-limit safety thermostat is trippingOverload for impellor fan motor is tripping There is excessive vibration coming from the tumbler basket Diagnostic L.E.D. light emitting diode Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. light emitting diode Display IndicatorsE.D. Display Indicator Number AIR AIR JET Output L.E.D. Indicator Optional FAN Blower Output L.E.D. IndicatorHT1 Heat Output L.E.D. Indicator Lint Lint Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorMain Main Door Input L.E.D. Indicator Power Supply Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. IndicatorALL REV E.D. Codes 1. Display CodesGAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS only Ignition Attempt Failure Computer Logic and Wiring Diagram Page Drive motor reverses but does not forward, blower motor runs No Display ConditionLint Door Condition Blower motor does not operate, drive motor runsMicroprocessor Computer Main Door ConditionFor Phase 6 Models Manual Reset HI-LIMIT InstructionsMotor Plate High and LOW Voltage Technical InformationInformation on the Data Label Data LabelHOW to USE a Manometer Tool List ADC450428 1- 02/22/00-25