American Dryer Corp MDG-75 manual Microprocessor Computer Models

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MICROPROCESSOR (COMPUTER) MODELS

A.No L.E.D. (light emitting diode) display (for microprocessor [computer] models ONLY)...

1.Service panel fuse blown or tripped breaker.

2.Blown control circuit L1 or L2 1/2-amp (Slo Blo) fuse.

3.Failed microprocessor controller (computer).

4.Failed control step down transformer (for 380 volts or higher models ONLY).

B.Drive motor is not operating (does not start)...

1.Microprocessor controller (computer) motor indicator dot and relay output L.E.D. (light emitting diode) indicator dots are on ...

a.Failed drive motor contactor (relay).

b.Failed arc suppressor (A.S.) board (for Reversing Models ONLY).

c.Failed drive motor.

2.Microprocessor controller (computer) motor indicator dot and relay output L.E.D. (light emitting diode) indicator dots are on, but motor output L.E.D. indicator is off ...

a.Failed microprocessor controller (computer).

C.Drive motor (Reversing Models ONLY) operates in one direction only...stops and restarts in the same direction...

1.Failed reversing contactor (relay).

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

3.Failed microprocessor controller (computer)...check output indicator.

D.Drive motor operates okay for a few minutes, then stops and will not restart...

1.Motor is overheating and tripping out on internal overload protector ...

a.Motor air vents clogged with lint.

b.Low voltage to motor.

c.Failed motor.

d.Tumbler (basket) is binding...check for an obstruction.

e.Failed idler bearings or tumbler bearings.

f.Failed blower (impellor and fan)...out of balance (for Non-Reversing Models ONLY).

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Contents MDG-75 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Section Important InformationSafety Precautions What to do if YOU Smell GASPage SPECIFICATIONS/COMPONENT Identification SpecificationsSpecifications Component Identification Dryer Rear View Illus. No Installation Procedures Location RequirementsUNPACKING/SETTING UP Dryer Enclosure Requirements Fresh AIR Supply Exhaust Requirements Not be Reduced Anywhere Down Stream of the Dryer Page Page Electrical Information MDG-75 GAS Page 3+$6 ‘ /&75,&$/&211&7,216/$6 Page Page GAS Information 48, 3523$1 Page Page Preparation for OPERATION/START-UP Preoperational Tests Gas DryersPage Preoperational Instructions Shut Down Instructions Parts SERVICE/PARTS InformationService Warranty Information Returning Warranty CardsRoutine Maintenance CleaningDays Adjustments Days After Installation and Every 6 Months ThereafterProcedure for Functional Check Replacement Components Page Page Reversing Timer Spin and Dwell Adjustments 1* /*1’Technical Information Data LabelApplicable Approval Seals Troubleshooting From the Machine Toallowaccess for CLEANING,ADJUSTING70 3$ Microprocessor Computer Models Blower and Fan motor is not operating does not start Loose connection in main door switch circuit Page GAS Models Failed microprocessor controller computer Dryer operates but is taking too long to dry Page AA. Condensation on main door glass Timer Models Blower/Fan motor is not operating does not start Page Dryer operates but is taking too long to dry Page Condensation on main door glass Page 01/07/998-50