Maytag MDE/MDG21PRA, MDE/MDG21PNA, MDE/MDG21PDA, MDE/MDG21PDD, MDE/MDG21PND manual General Information

Page 12

General Information

!WARNING

To avoid risk of electrical shock, personal injury or death from improper servicing, make sure you understand the proper procedures and usage of tools listed, before attempting any procedures described in the manual. Failure to understand and comply with safety information may result in severe personal injury or death.

TEST EQUIPMENT

The equipment required to service Maytag products depends largely upon the condition you encounter. Locating a malfunction will often require the use of electrical testing equipment such as:

Analog Test Meter

can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

Digital Test Meter

can be used to check for open or closed circuits, measure resistance, AC and DC volts, and temperature.

DESCRIPTION

PART NUMBER

Analog Test Meter

20000005

Digital Test Meter

20001001

Clamp-on Ammeter

20000002

AC Voltage Sensor

20000081

Air Test Meter

20000029

Water Column

038205

Manometer

 

Clamp-On Ammeter can be used to detect shorts. Overloads on the circuit breaker or fuse can be traced to either the dryer or circuit breaker by checking the dryer current draw.

AC Voltage Sensor

can be used to alert you if AC voltage is present so proper safety precautions can be observed. The tip of the sensor will glow bright red if voltage is between 110-600 volts AC.

Air Test Meter

can be used to check back pressure in the exhaust duct. Vent restriction can cause back pressure and disrupt normal operations of the dryer.

Water Column Manometer can be used to check gas pressure being supplied to the dryer and the outlet tap pressure on the gas valve.

8

7

6

5

4

3

2

1

0

1

2

3

4

5

6

7

8

12

16022904 Rev. 0

©2004 Maytag Appliances Company

Image 12
Contents Commercial Single Stack Dryers Important Information Table of Contents Important Safety Information About Ground Wires General Information Related PublicationsProper Grounding and Polarization of 120 Volts Wall Outlets Grounding Instructions ExplanationService Parts and AccessoriesModel Identification Commercial Dryer NomenclatureTERMINOLOGY/DEFINITIONS Term Definitions Water 1 o FAir movement measured in cubic feet per minute GAS Valve Assembly HOW IT WorksFunction of Gas Valve System Radiant Sensor Contact ClosedSafety Features Power InterruptionsGas Conversions Ignition FailuresGeneral Information General Specifications Wattage SpecificationsExhaust Ducts Electrical Troubleshooting Drive Motor CheckCentrifugal Switch Air Shutter AdjustmentMotor Test Cord Drive Motor TestHow to Use ManometersMechanical Troubleshooting Will Not Run Will Not Shut-OffWill Not Dry Noisy and/Or VibrationSingle Dryer Troubleshooting Guide Dryer Stopped with Zero Minutes Remaining Display Cannot Enter OrExit OperatorDisplay Flashes User Mode Dropped Into Machine Credited Are Eventually LostControl Does Not Respond ToKey Inputs Dryer Drum Will Not Turn Response To Coin 1 orWill Not Keep Time Of Day During Power Interruptions Will not Respond to handheldNo Decimal Point Is UsedNot Heat Dryer WillSingle Dryer Diagnostic Program Dryer Diagnostic ProgramSingle Dryer Diagnostic Code Door Sense ProblemVAC Stack Dryer Troubleshooting Guide Display Is BlankAbnormal Display Or Function Upper or Lower Dryer Has Zero Minutes Remaining DisplayControl Board DoesNot KeypadsResponse To Coin Or Coin Keep Time DayDuring InterruptionCannot Dryer Runs Without Program Selection Drum Will Not Turn Stack Dryer Diagnostic Program Stack Dryer Diagnostic Code D1 or d17 Door Sense ProblemVoltage Problem Touch Pad Assembly Control PanelMicroprocessor Board TransformerService Door Switch Coin Vault SwitchDoor Assembly Coin SensorReversing Door Assembly Door DisassemblyFront Panel Door Switch Top CoverFront Shroud Assembly Removal Outlet Duct, Shroud & Tumbler FrontLint Filter Bearing & PadsFront Seal BeltRear Shroud Assembly Installing Drive BeltBaffles Roller and Bearing Assembly Back SealBlower Assembly ThermostatsCycling Thermostat Low-cycling ThermostatBlower Exhaust Duct Pipe Assembly Breakdown Motor Switch Drive Motor AssemblyIdler Arm Assembly Gas Valve Assembly CoilsIgniter Gas Valve Combustion ConeInlet Duct Heater EnclosureService Panel and Switch Access CoverStack Dryer Sloped Front Models Microprocessor Coin DropRemove Screws Swing Out AwayStack Dryer Sloped Front PR Stack DRYER-MN ModelsPush-To-Start Switch TimerSelector Switch Machine-In-Use LightFront Shroud Assembly Stack DRYER-FLAT Front ModelsMotor & Heater Relays Appendix a Programming Procedures PricingFixed Vend Pricing SET UP Codes Steps 3. thru 9. codes are skipped if mode 2.00 is selected Money Counter Option00 7.STARTING of Special Pricing Hour Value of Coin 2 Canadian Dollar Drop White & Colors keypad Example Dryer Diagnostic Mode Dryer Help ModeAll Single Load Models Stacked Models Only