American Dryer Corp ML-79 manual Microprocessor Computer Models

Page 39

MICROPROCESSOR (COMPUTER) MODELS

A.No L.E.D. display (microprocessor 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.

4.Failed control stepdown transformer (380 volts or higher models only).

B.Drive motor not operating (does not start)

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

a.Failed drive motor contactor (relay).

2.Microprocessor (computer) motor indicator dot and “door” L.E.D. indicator are on, but motor output L.E.D. indicator is off.

C.Drive motor operates normally for a few minutes, then stops and will not restart

1.Motor is overheating and tripping internal overload protector

a.Motor air vents are clogged with lint.

b.Low voltage to motor.

c.Failed motor.

d.Basket (tumbler) is binding, check for obstruction.

D.Microprocessor controller (computer) display reads “dFSL” continuously and the buzzer (tone) sounds every 30 seconds.

1.Fault in microprocessor heat sensing circuit

a.Blown “dFSL” 1/8 amp fuse on the microprocessor (computer).

b.Failed microprocessor temperature sensor.

c.Failed microprocessor controller.

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

E.Microprocessor controller (computer) display reads “door” and microprocessor controller (computer) “door” L.E.D. indicator is off.

1.Fault (open circuit) in main door switch circuit.

a.Main door not closed all the way.

b.Main door switch is out of proper adjustment.

c.Failed main door switch.

d.Broken connection or wire in main door wiring circuit.

2.Failed 24 VAC step down transformer or fault in wiring.

F.Microprocessor controller (computer) L.E.D. display reads “door” and microprocessor controller (com- puter) “door” L.E.D. indicator is on.

35

Image 39
Contents QUE Faire SI Vous Sentez UNE Odeur DE GAZ What do YOU do if YOU Smell GASRetain This Manual In a Safe Place For Future Reference For Your Safety Pour Votre SécuritéFor Your Safety Page Table of Contents Section Routine Maintenance Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsPage Section Specifications ML-79 WET Wash Illus. No Description Component IdentificationLocation Requirements Installation ProceduresLeveling Dryer Unpacking and Setting UPDryer Enclosure Requirements Make UP AIR Requirements Page Exhaust Requirements Page Page Be centered within this opening Electrical Requirements Electrical InformationGrounding Electrical Service SpecificationsElectrical Connections Technical GAS Data GAS InformationS. Drill Material Size equivalent are as follows Page Page AIR Information Preparation for Operation and START-UP Gas Dryers Preoperational TestsShut Down Instructions Preoperational InstructionsService and Parts Information ServiceParts Returning Warranty Cards Warranty InformationPage Cleaning Routine MaintenanceDays Section Microprocessor Computer Models GAS Models Electric Models Electric Dryers Low or inconsistent gas pressurePage Page Data Label Technical InformationProcedure for Functional Check Replacement Components Page Figure #1 Aquatex Humidity Sensor InstructionsADC 07/29/99-25 12/08/00-10