Maytag MDE/MDG21PNA manual Control Panel, Microprocessor Board, Touch Pad Assembly, Transformer

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Disassembly Procedures

!WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to unit before servicing.

Control Panel

1.Disconnect power supply to unit.

2.Remove top two screws.

Remove Two

Top Screws

3. Carefully lay control Panel forward.

Microprocessor Board

1.Disconnect power supply to unit.

2.Remove Control Panel.

3.Disconnect wiring harness connectors.

Note: Observe the positions of the harness connectors plugged into the control board.

4.Remove four nuts holding the Microprocessor Board to the standoff studs.

5.Disconnect Ribbon connector to Touch Pad.

Touch Pad Assembly

!. Disconnect power supply to unit.

2.Remove the screws securing the Facia.

3.Remove Microprocessor Board.

4.Disconnect ribbon connector.

5.Remove screws securing Touch Pad Assembly to Control Panel.

Transformer

1.Disconnect power to supply to unit.

2.Remove Control Panel.

3.Disconnect wiring harness connection.

4.Remove screws securing Transformer in place.

Meter Case

1.Disconnect power supply to unit.

2.Remove Service Access Door and Coin box.

3.Remove two 9/16” hex nuts securing Meter Case.

4.Remove Control Panel.

5.Remove 1/4” hex head screws hold Meter Case to the Console.

6.Disconnect wires for Service & Vault Switch and connector for the Coin Drop Sensor.

7.Lift Meter Case off the Top Cover.

©2004 Maytag Appliances Company

16022904 Rev. 0

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Contents Commercial Single Stack Dryers Important Information Table of Contents Important Safety Information General Information Related Publications About Ground WiresProper Grounding and Polarization of 120 Volts Wall Outlets Explanation Grounding InstructionsParts and Accessories ServiceModel Identification Commercial Dryer NomenclatureWater 1 o F TERMINOLOGY/DEFINITIONS Term DefinitionsAir movement measured in cubic feet per minute HOW IT Works GAS Valve AssemblyRadiant Sensor Contact Closed Function of Gas Valve SystemPower Interruptions Safety FeaturesGas Conversions Ignition FailuresGeneral Information Wattage Specifications General SpecificationsExhaust Ducts Drive Motor Check Electrical TroubleshootingAir Shutter Adjustment Centrifugal SwitchMotor Test Cord Drive Motor TestManometers How to UseWill Not Shut-Off Mechanical Troubleshooting Will Not RunWill Not Dry Noisy and/Or VibrationSingle Dryer Troubleshooting Guide Cannot Enter Or Dryer Stopped with Zero Minutes Remaining DisplayExit OperatorDropped Into Machine Credited Are Eventually Lost Display Flashes User ModeRespond To Control Does NotKey Inputs Dryer Drum Will Not Turn To Coin 1 or ResponseWill not Respond to handheld Will Not Keep Time Of Day During Power InterruptionsNo Decimal Point Is UsedDryer Will Not HeatDryer Diagnostic Program Single Dryer Diagnostic ProgramDoor Sense Problem Single Dryer Diagnostic CodeVAC Display Is Blank Stack Dryer Troubleshooting GuideAbnormal Display Or Function Upper or Lower Dryer Has Zero Minutes Remaining DisplayBoard Does ControlNot KeypadsKeep Time Day Response To Coin Or CoinDuring InterruptionCannot Dryer Runs Without Program Selection Drum Will Not Turn Stack Dryer Diagnostic Program D1 or d17 Door Sense Problem Stack Dryer Diagnostic CodeVoltage Problem Control Panel Touch Pad AssemblyMicroprocessor Board TransformerCoin Vault Switch Service Door SwitchDoor Assembly Coin SensorDoor Disassembly Reversing Door AssemblyFront Panel Top Cover Door SwitchOutlet Duct, Shroud & Tumbler Front Front Shroud Assembly RemovalBearing & Pads Lint FilterFront Seal BeltInstalling Drive Belt Rear Shroud AssemblyBaffles Back Seal Roller and Bearing AssemblyThermostats Blower AssemblyCycling Thermostat Low-cycling ThermostatBlower Motor Switch Drive Motor Assembly Exhaust Duct Pipe Assembly BreakdownIdler Arm Assembly Coils Gas Valve AssemblyIgniter Combustion Cone Gas ValveInlet Duct Heater EnclosureAccess Cover Service Panel and SwitchStack Dryer Sloped Front Models Coin Drop MicroprocessorSwing Out Away Remove ScrewsStack DRYER-MN Models Stack Dryer Sloped Front PRTimer Push-To-Start SwitchSelector Switch Machine-In-Use LightStack DRYER-FLAT Front Models Front Shroud AssemblyMotor & Heater Relays Appendix a Pricing Programming ProceduresFixed Vend Pricing SET UP Codes Money Counter Option Steps 3. thru 9. codes are skipped if mode 2.00 is selected00 7.STARTING of Special Pricing Hour Value of Coin 2 Canadian Dollar Drop White & Colors keypad Example Dryer Help Mode Dryer Diagnostic ModeAll Single Load Models Stacked Models Only