American Dryer Corp MD-170 manual Failed microprocessor controller computer

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G.Both drive motor and blower (impellor/fan) motor are not operating (do not start)...microprocessor controller (computer) motor indicator dots and relay output L.E.D. indicator dots are on...

1.Failed arc suppressor (A.S.) board.

2.Failed contactors (both blower and drive).

3.Failed motors (both blower and drive).

H.Both drive motor and blower (impellor/fan) motor is not operating (do not start)... microprocessor (computer) motor indicator dots and "door" L.E.D. indicator are on but relay output L.E.D. indicators are off (L.E.D. [(light emitting diode] display does not read "door")...

1.Failed microprocessor controller (computer).

I.Both drive motor and blower motor run a few minutes and then stop...microprocessor controller (computer) display continues to read time or percent of extraction and ALL indicator dots are off...

1.Fault in main door switch circuit ...

a.Main door switch out of adjustment.

b.Loose connection in door switch circuit.

2.Fault in lint drawer switch circuit ...

a.Lint drawer switch out of proper adjustment.

b.Loose connection in the lint drawer switch circuit.

J.Microprocessor controller (computer) display reads "dSFL" continuously and the buzzer (tone) sounds every 30-seconds......

1.Fault in microprocessor heat sensing circuit ...

a.Blown 1/8-amp ("dSFL") fuse on microprocessor controller (computer).

b.Failed microprocessor temperature sensor.

c.Failed microprocessor controller (computer).

d.Broken wire or connection somewhere between the microprocessor controller (computer) and the micro- processor temperature sensor.

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Contents Maytag Co MD-170 Installation/Operators ManualRetain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsGAS Supply or the Steam Supply Before ANY Covers or Specifications GAS and Steam Specifications / Component IdentificationSpecifications MDG-170 Gas MDS-170 Steam Component Identification Page Location Requirements Installation ProceduresUNPACKING/SETTING UP Round duct can now be connected to the dryer Dryer Enclosure Requirements Fresh AIR Supply Create a Potential Fire Hazard Exhaust RequirementsPage Page Page Page Page Electrical Information MDG-170 Gas MDS-170 Steam Page Page GAS Information Type of GAS Latest Edition Page Steam Requirements High Pressure Steam InformationSteam Damper System 621 kPa DiagramPage Preparation for OPERATION/START-UP Switch Otherwise the Dryer will not StartPreoperational Tests Natural Gas Inches W.C .5 millibars Basket Coating Shut Down Instructions621 kPa Compressed AIR RequirementsService SERVICE/PARTS InformationParts Returning Warranty Cards Warranty InformationCleaning Routine MaintenanceClean the lint drawer or screen every third or fourth load Createa Potentialfire Hazard Lubrication AdjustmentsDrive motor is not operating does not start TroubleshootingFailed blower impellor/fan drive shaft bearings Blower impellor/fan motor is not operating does not startFailed microprocessor controller computer Failed keyboard touchpad label assembly GAS Models Steam Models Dryer operates but is taking too long to dry Gas Models Condensation on main door glass AA. Excessive noise and/or vibration Dryer or scraping noise at tumbler basket areaFailed drive motor contactor relay Failed motor Failed blower impellor/fan drive shaft bearings Steam Models Gas Models Steam Models Condensation on main door glass Excessive noise and/or vibration Timing Legend Reversing Timer SPIN/DWELLADJUSTMENTSData Label Location / Information GAS Manifold Pressure for GAS Dryers Data LabelMicroprocessor computer Board Procedure for Functional Check Replacement ComponentsModels manufactured with ADC module Part No Theory Of Operation P O R T a N T ADC P/N114501 02/16/00-25 2- 02/25/00-250