American Dryer Corp MDG-75 manual

Page 53

O.Microprocessor controller (computer) locks up and L.E.D. (light emitting diode) display reads erroneous message(s) or only partial segments...

1.Transient power voltage spikes...disconnect the electrical power to the dryer, wait one (1) minute and reestablish power to the dryer. If problem is still evident ...

a.Failed microprocessor controller (computer).

b.Failed keyboard label (touchpad) assembly.

P.Dryer stops during a cycle, microprocessor controller (computer) buzzer (tone) sounds for 5-seconds, and then the L.E.D. display reads “dSFL” for approximately 30-seconds, and then returns to “FILL”...

1.Loose connection somewhere between the microprocessor controller (computer) and the microprocessor temperature sensor.

2.Loose "dSFL" 1/8-amp fuse on the microprocessor controller (computer).

Q.Dryer stops during a cycle, microprocessor controller (computer) buzzer (tone) sounds for 5-seconds, and then the L.E.D. (light emitting diode) returns to “FILL”...

1.Loose connection somewhere in the main power circuit to the microprocessor controller (computer).

R.Microprocessor controller (computer) L.E.D. (light emitting diode) display reads “SEFL”...

1.Rotational sensor circuit failure...fault somewhere in the tumbler (basket) rotation or circuit ...

a.Tumbler (basket) not rotating ...

1)Broken or loose V-belts.

2)Failure in drive motor circuit...refer to Section B, Section C, and Section D on page 46.

b.Failed rotational sensor.

c.Broken wire or connection between rotation sensor and microprocessor controller (computer).

d.Microprocessor controller (computer) is programmed incorrectly for Rotation Sensor Option and dryer is not equipped with this option.

S.Microprocessor controller (computer) L.E.D. (light emitting diode) display reads “Hot”...

1.Possible overheating condition...microprocessor controller (computer) has sensed a temperature which has exceeded 220° F.

“Hot” display will not clear until temperature sensed has dropped to 220° F or lower and the micro- processor controller (computer) is manually reset by pressing the “CLEAR/STOP” key.

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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 Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsPage Specifications SPECIFICATIONS/COMPONENT IdentificationSpecifications Component Identification Dryer Rear View Illus. No Location Requirements Installation ProceduresUNPACKING/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$1 Page Page Preparation for OPERATION/START-UP Gas Dryers Preoperational TestsPage Preoperational Instructions Shut Down Instructions Parts SERVICE/PARTS InformationService Returning Warranty Cards Warranty InformationCleaning Routine MaintenanceDays Days After Installation and Every 6 Months Thereafter AdjustmentsProcedure for Functional Check Replacement Components Page Page 1* /*1’ Reversing Timer Spin and Dwell AdjustmentsData Label Technical InformationApplicable Approval Seals From the Machine Toallowaccess for CLEANING,ADJUSTING Troubleshooting70 3$ 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