Maytag MLE/MLG23PDF, MDE/MDG21PRA General Information Related Publications, About Ground Wires

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Important Safety Information

!WARNING

To avoid personal injury or death from improper servicing, make sure you read and understand the descriptions and meaning of various safety symbols, words and labels used in this manual, before attempting any procedures described in the manual. Failure to understand and comply with safety information may result in severe personal injury or death.

General Information

This Service Manual describes the operation, troubleshooting, disassembly, and repair of Maytag® dryer. It is intended for use by authorized technicians who troubleshoot and repair these units.

NOTE: It is assumed that users of this manual are familiar with the use of tools and equipment used to troubleshoot and repair electrical, and mechanical systems; and understand the terminology used to describe and discuss them.

Related Publications

This is a base service manual, covering a range of similar models. It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering the specific model being serviced.

Electrical Service Information

Proper Grounding and Polarization of 120 Volts Wall Outlets

For the safety of our customers and the Service Technician ALL appliances have a three–prong power cord and MUST be connected to a properly polarized AND grounded wall outlet.

This information was written for those who do not understand grounding and polarization of a wall outlet. A 120 volt wall outlet must always be wired as shown below.

 

Ground

L1

Neutral

 

Neutral

 

side

0

115±12

V.A.C.

V.A.C.

Round

 

grounding

115±12

V.A.C.

prong

 

About Ground Wires

In the event of an electrical short circuit, a ground wire reduces the risk of electric shock by providing an escape wire for the electric current.

Standard accepted color coding for ground wires is green or green with a yellow stripe.

Grounding wires and wires colored like grounding wires are NOT to be used as current carrying conductors.

!WARNING

To reduce the risk of fire, electric shock, serious injury or death, all wiring and grounding must conform with the latest edition of the National Electric Code, ANSI/ NFPA 70, or the Canadian Electrical Code, CSA C22.1, and such local regulations as might apply. It is the customer’s responsibility to have the wiring and fuses checked by a qualified electrician to make sure your home has adequate electrical power to operate the dryer.

!WARNING

To avoid risk of personal injury or death due to electrical shock:

Observe all local codes and ordinances.

Disconnect electrical power to unit before servicing.

Ground appliance properly.

Check with a qualified electrician if you are not sure this appliance is properly grounded.

DO NOT ground to gas line.

DO NOT ground to cold water pipe if pipe is interrupted by plastic, nonmetallic gaskets, or other insulating (nonconducting) materials.

DO NOT modify plug on power cord. If plug does not fit electrical outlet, have proper outlet installed by qualified electrician.

DO NOT have a fuse in the neutral or ground circuit. A fuse in the neutral or ground circuit could result in an electrical shock.

DO NOT use an extension cord with this appliance.

DO NOT use an adapter plug with this appliance.

DO NOT pinch power cord.

©2004 Maytag Appliances Company

1602904 Rev. 0

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Contents Commercial Single Stack Dryers Important Information Table of Contents Important Safety Information Proper Grounding and Polarization of 120 Volts Wall Outlets About Ground WiresGeneral Information Related Publications Explanation Grounding InstructionsParts and Accessories ServiceModel Identification Commercial Dryer NomenclatureAir movement measured in cubic feet per minute TERMINOLOGY/DEFINITIONS Term DefinitionsWater 1 o F HOW IT Works GAS Valve AssemblyRadiant Sensor Contact Closed Function of Gas Valve SystemPower Interruptions Safety FeaturesGas Conversions Ignition FailuresGeneral Information Exhaust Ducts General SpecificationsWattage Specifications 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 ModeKey Inputs Control Does NotRespond To 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 SensorFront Panel Reversing Door AssemblyDoor Disassembly Top Cover Door SwitchOutlet Duct, Shroud & Tumbler Front Front Shroud Assembly RemovalBearing & Pads Lint FilterFront Seal BeltBaffles Rear Shroud AssemblyInstalling Drive Belt Back Seal Roller and Bearing AssemblyThermostats Blower AssemblyCycling Thermostat Low-cycling ThermostatBlower Idler Arm Assembly Exhaust Duct Pipe Assembly BreakdownMotor Switch Drive Motor Assembly Igniter Gas Valve AssemblyCoils Combustion Cone Gas ValveInlet Duct Heater EnclosureStack Dryer Sloped Front Models Service Panel and SwitchAccess Cover 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