ADC 450428 service manual To Replace Computer, To Replace Keyboard Touchpad Label Assembly

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To Replace Computer

1. Disconnect electrical 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 keyboard (touchpad) ribbon from computer.

5.Remove the two (2) hex nuts securing the computer to the sheet metal control panel. Remove the board by pulling the other two (2) corners off the clinch studs.

6.Install new computer by reversing this procedure. (refer to illustration on page 15.)

7.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).

8. Reestablish electrical power to the dryer.

To Replace Keyboard (Touchpad) Label Assembly

1.Discontinue electrical power to the dryer.

2.Unplug keyboard (touchpad) ribbon from rear of the microprocessor computer.

3.Slowly peel off and remove keyboard (touchpad) label assembly from control panel.

4.Peel paper backing off new keyboard (touchpad) label assembly.

5.Holding the new keyboard (touchpad) label assembly close to the control panel, insert the keyboard (touchpad) ribbon through the rectangular slot in the control panel. Align label assembly into position by matching the red viewing window on the label to the rectangular cutout in the panel and gently press into place.

6.Connect keyboard (touchpad) ribbon to the computer.

7.Reestablish electrical power to the dryer.

To Replace Microprocessor Temperature Sensor Probe

1.Discontinue electrical power to the dryer.

2.Remove lint drawer.

3.Remove microprocessor sensor bracket assembly from dryer. a. Disconnect sensor bracket harness connector.

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Contents ML-130 American Dryer CorporationRetain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Phase 6 OPL System Diagnostics Safety Precautions Important InformationStandards MATERIALS, GASOLINE, and Their Flammable Vapors Routine MaintenanceCleaning Adjustments LubricationElectrical and GAS Requirements Installation RequirementsENCLOSURE, AIR SUPPLY, and Exhaust Requirements Operational Service Check Procedure Page Description of Parts Control BOXDrive Motor HSI HOT Surface Ignition Module Gas Models OnlyBlower Motor and Impellor GAS Burner AssemblyIdler Assembly Tumbler Basket Main Door SwitchTumbler Basket Bearing and Pulley Arrangement HI-LIMIT Gas and Electric Models Only Sail Switch Gas and Electric Models OnlyManual Reset Thermostat Steam Damper System Lint Drawer SwitchLint Drawer Servicing IntroductionComputer Controls To Replace Computer Control PanelTo Replace Computer To Replace Keyboard Touchpad Label AssemblyTo Replace Microprocessor Temperature Sensor Probe Ignition Controls To Remove Hot Surface Ignitor refer to illustration aboveTo Remove Flame Sensor Probe HSI Ignitor Flame Sensor ProbeTo Test and Adjust Gas Water Column Pressure To Replace Main Burner OrificesTo Convert from Natural Gas to L.P. Gas Thermostats To Replace Burner TubesTo Replace HSI Hot Surface Ignition Module Page Sail Switch Assembly Gas and Electric Models Only To Replace Sail SwitchTo Adjust Sail Switch Personal Injury or Fire could ResultTo Replace Main Door Assembly To Install New Main Door GlassTo Replace Front Panel To Replace Main Door Hinge BlockTo Replace Small Idler Pulley PulleysTo Replace Tumbler Basket Pulley To Replace Large Idler Pulley To Replace Motor PulleyTumbler Basket Assembly Tumbler Basket Alignment Vertical Up and Down AdjustmentTumbler Basket Alignment Lateral Side to Side Adjustment To Replace Tumbler Basket or Tumbler Basket SupportTo Replace Front Tumbler Basket Support Pillow Block Bearing To Replace Front Idler Shaft Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block BearingBelt Tension Adjustment Tumbler Basket to Idler Belt Tension Adjustment Motor to IdlerBelts To Replace V-BeltsTo Replace Impellor Motor Fan Shaft Drive MotorsTo Replace Drive Motor Impellor Lint Drawer Assembly To Replace Lint ScreenTo Replace Lint Drawer Switch Computer will not accept keyboard touchpad entries TroubleshootingNo display on computer Dryer will not start, but computer display indicators are on Dryer operates but is taking too long to dryOverload for impellor fan motor is tripping Burner hi-limit safety thermostat is trippingThermal overload for drive motor is tripping There is excessive vibration coming from the tumbler basket Phase 6 OPL System Diagnostics Diagnostic L.E.D. light emitting diode Display Failure CodesPage E.D. light emitting diode Display Indicators E.D. Display Indicator NumberE.D. Display Indicator Number HT1 Heat Output L.E.D. Indicator FAN Blower Output L.E.D. IndicatorAIR AIR JET Output L.E.D. Indicator Optional Main Main Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorLint Lint Door Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. Indicator Power Supply Input L.E.D. IndicatorE.D. Codes 1. Display Codes ALL REVGAS only Ignition Attempt Failure GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit Computer Logic and Wiring Diagram Page No Display Condition Drive motor reverses but does not forward, blower motor runsBlower motor does not operate, drive motor runs Lint Door ConditionMain Door Condition Microprocessor ComputerManual Reset HI-LIMIT Instructions For Phase 6 ModelsTechnical Information Motor Plate High and LOW VoltageData Label Information on the Data LabelHOW to USE a Manometer Tool List ADC450428 1- 02/22/00-25