Maytag MDE/MDG21PNA, MDE/MDG21PRA manual Gas Valve, Combustion Cone, Inlet Duct, Heater Enclosure

Page 49

Disassembly Procedures

!WARNING

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

Gas Valve

1.Disconnect power supply to unit

2.Remove Front Panel.

3.Shut off gas supply and disconnect supply line to valve.

4.Disconnect wire harness at valve coils.

5.Disconnect wires from radiant sensor.

6.Loosen brass nut attaching angle connector to gas valve.

7.Remove two screws holding valve and burner assembly to base.

8.Slide valve bracket out of slot in base and remove valve and burner assembly.

9.Remove two screws holding gas valve to bracket on underside.

Combustion Cone

1.Disconnect power supply to unit.

2.Remove Front Panel.

3.Remove burner and igniter. Be careful igniter is fragile.

4.Remove wires from hi-limit thermostat.

5.Remove screw in front of cone holding it to base.

6.Remove screw at back of combustion cone holding cone tab to inlet duct.

7.Pull combustion cone out of dryer.

Inlet Duct

1.Disconnect power supply to unit.

2.Remove Front Panel.

3.Remove Front Shroud Assembly, belt and tumbler.

4.Remove screws securing heat cone to base and to inlet duct.

Inlet Duct

Retaining

Clip

Radiant

Sensor

Combustion

Cone

Hi-Limit

Thermostat

5. Remove tumbler back assembly.

Note: Four screws are accessible from behind dryer.

5.Remove three screws securing inlet duct to the tumbler back assembly. The two lower screws are under the felt seal of the tumbler back assembly.

Note: For proper inlet duct to tumbler back assembly alignment when reinstalling, align inlet duct to large hole in the tumbler back assembly and fasten top screw first.

Heater Enclosure

1.Disconnect power supply to unit.

2.Remove Front Panel and Door.

3.Remove screw holding Heater Enclosure shield to base. Remove Heater Shield from dryer.

4.Remove screw in back of enclosure holding tab to inlet duct.

Heater Enclosure

Thermal Fuse

Hi-Limit

Thermostat

Terminal

Insulator

5.Remove wires from the Thermal Fuse and heater terminal on left side of enclosure. Remove purple wire from Hi-Limit Thermostat.

6.Pull heater assembly out of dryer.

Note: Terminal insulators are used on each end of the element which attaches to spade connectors. These spade connectors are "crimped" to the wire and held in the insulator by small barbs on each side of the terminal. The barb must be bent parallel with each terminal before element package can be removed from the enclosure. Three screws hold the element package to the enclosure.

©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
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