Maytag MLE/MLG23MNA, MDE/MDG21PRA, MDE/MDG21PNA, MDE/MDG21PDA, MDE/MDG21PDD Response, To Coin 1 or

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Troubleshooting Procedures

!W ARNING

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

Single Dryer Troubleshooting Guide

No

Response

Is the display blank?

To Coin 1 or

Coin 2

Yes

See "Blank

Display " section.

 

 

 

Enter service mode using using

 

No

 

 

service switch. Does display

 

 

 

 

 

 

contain a diagnostic code?

 

 

 

 

 

 

Is the coin slide option

selected?

No

 

 

 

See diagnostic

Yes

 

 

 

 

code guide

 

 

 

 

 

 

 

Timings for the coin slide mode will cause coins to

not be counted . Deselect the coin slide

mode.

 

 

 

 

 

 

Coins are ignored if in

Is debit only mode

 

 

 

 

debit only mode. Select

 

Yes

 

 

selected?

 

 

 

the coin and debit or coin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

only mode.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

Is price suppression

selected?

No

Drop a coin through the coin 1 (or coin 2) drop. does the "*" in the display flash?

No

 

 

 

The price and amount

 

 

 

remaining to be added

Yes

 

 

 

 

do not display in price

 

 

 

 

 

 

 

 

 

suppression mode.

 

 

 

 

 

 

 

Go to the section

Yes

 

 

"Abnormal Display

 

 

 

 

Or Function"

 

 

 

 

 

 

 

Check the coin mechanism for proper adjustment.

Check wiring and termination

between coin 1 (or coin 2) drop and the control board.

Unplug dryer and the

coin 1 connector

If the problem still exists, replace the optic sensor.

If the problem still exists, replace the control board.

No

Clean the optic

sensor, if necessary

Is the resistance

between the red wire and the white wire in the coin 1 connector greater than 10K ohms?

No

Make sure that there is not too much ambient light. If problem still exists, replace the coin1 (or coin 2) optic sensor.

©2004 Maytag Appliances Company

16022904 Rev. 0

23

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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 InstructionsCommercial Dryer Nomenclature ServiceParts and Accessories Model IdentificationAir 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 SystemIgnition Failures Safety FeaturesPower Interruptions Gas ConversionsGeneral Information Exhaust Ducts General SpecificationsWattage Specifications Drive Motor Check Electrical TroubleshootingDrive Motor Test Centrifugal SwitchAir Shutter Adjustment Motor Test CordManometers How to UseNoisy and/Or Vibration Mechanical Troubleshooting Will Not RunWill Not Shut-Off Will Not DrySingle Dryer Troubleshooting Guide Operator Dryer Stopped with Zero Minutes Remaining DisplayCannot Enter Or Exit Dropped Into Machine Credited Are Eventually Lost Display Flashes User ModeKey Inputs Control Does NotRespond To Dryer Drum Will Not Turn To Coin 1 or ResponsePoint Is Used Will Not Keep Time Of Day During Power InterruptionsWill not Respond to handheld No DecimalDryer Will Not HeatDryer Diagnostic Program Single Dryer Diagnostic ProgramDoor Sense Problem Single Dryer Diagnostic CodeVAC Lower Dryer Has Zero Minutes Remaining Display Stack Dryer Troubleshooting GuideDisplay Is Blank Abnormal Display Or Function Upper orKeypads ControlBoard Does NotInterruption Response To Coin Or CoinKeep Time Day DuringCannot Dryer Runs Without Program Selection Drum Will Not Turn Stack Dryer Diagnostic Program D1 or d17 Door Sense Problem Stack Dryer Diagnostic CodeVoltage Problem Transformer Touch Pad AssemblyControl Panel Microprocessor BoardCoin Sensor Service Door SwitchCoin Vault Switch Door AssemblyFront Panel Reversing Door AssemblyDoor Disassembly Top Cover Door SwitchOutlet Duct, Shroud & Tumbler Front Front Shroud Assembly RemovalBelt Lint FilterBearing & Pads Front SealBaffles Rear Shroud AssemblyInstalling Drive Belt Back Seal Roller and Bearing AssemblyLow-cycling Thermostat Blower AssemblyThermostats Cycling ThermostatBlower Idler Arm Assembly Exhaust Duct Pipe Assembly BreakdownMotor Switch Drive Motor Assembly Igniter Gas Valve AssemblyCoils Heater Enclosure Gas ValveCombustion Cone Inlet DuctStack Dryer Sloped Front Models Service Panel and SwitchAccess Cover Coin Drop MicroprocessorSwing Out Away Remove ScrewsStack DRYER-MN Models Stack Dryer Sloped Front PRMachine-In-Use Light Push-To-Start SwitchTimer Selector SwitchStack 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 Stacked Models Only Dryer Diagnostic ModeDryer Help Mode All Single Load Models