Maytag MDE/MDG21PND, MDE/MDG21PRA, MDE/MDG21PNA, MDE/MDG21PDA, MDE/MDG21PDD, MLE/MLG23PDF manual Vac

Page 28

Troubleshooting Procedures

!WARNING

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

Single Dryer Diagnostic Code

d9

Voltage Problem

Less Than 90

VAC

Try to clear the

diagnostic code by

pressing the Delicates keypad for more than 1 second while the code is displayed.

Exit service mode , and pause for 10 seconds, enter service mode.

Did the

diagnostic code Yes cancel?

No

Low voltage was

sensed on the

power line, but is

now ok.

d12 Motor Sensed

Problem

Check installation to

 

 

 

 

 

insure proper power

 

 

 

 

Are other machines

going to this dryer. If

 

 

 

 

 

 

No

 

at this location giving a d9

d9 persist, check the

 

 

 

 

 

 

 

diagnostic code?

 

 

 

 

wiring or replace the

 

 

 

 

 

 

 

 

 

transformer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

If problem persists replace

the control board.

Clear diagnostic

 

 

 

 

 

 

 

 

code by pushing a

 

Does

 

 

 

 

 

Delicates keypad

 

 

 

 

 

 

 

diagnostic code

 

 

 

Yes

 

for at least 1

 

 

 

 

 

 

remain?

 

 

 

 

 

second while code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check installation

 

 

 

to insure proper

Yes

 

 

 

 

power going to all

 

 

 

 

 

 

 

 

 

of the dryers

 

 

 

 

Replace control

board

False indication

control board

d16

Check wiring between debit

Is card reader

card reader

Power down and

up machine to

Replace card

reader or

PR Models Only

installed?

No

and control

board

reset card reader

control board.

Install reader call distributor to reset control

board. PDA will not reset board.

28

16022904 Rev. 0

©2004 Maytag Appliances Company

Image 28
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 Grounding Instructions ExplanationService Parts and AccessoriesModel Identification Commercial Dryer NomenclatureWater 1 o F TERMINOLOGY/DEFINITIONS Term DefinitionsAir 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 Wattage Specifications General 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 LostRespond To Control Does NotKey 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 SensorDoor Disassembly Reversing Door AssemblyFront Panel Door Switch Top CoverFront Shroud Assembly Removal Outlet Duct, Shroud & Tumbler FrontLint Filter Bearing & PadsFront Seal BeltInstalling Drive Belt Rear Shroud AssemblyBaffles Roller and Bearing Assembly Back SealBlower Assembly ThermostatsCycling Thermostat Low-cycling ThermostatBlower Motor Switch Drive Motor Assembly Exhaust Duct Pipe Assembly BreakdownIdler Arm Assembly Coils Gas Valve AssemblyIgniter Gas Valve Combustion ConeInlet Duct Heater EnclosureAccess Cover Service Panel and SwitchStack 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