American Dryer ML-200 manual

Page 51

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

a.Tumbler (basket) is not rotating...

1)Broken tumbler (basket) drive V-belt(s).

2)Failure in drive motor circuit...refer to Section B, Section C, and Section D on page 42 and page 43.

b.Faulty rotation sensor.

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

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 220º F (104º C).

"Hot" display will not clear until temperature sensed has dropped to 220º F (104º C) or lower and the micro processor controller (computer) is manually reset by pressing the "CLEAR/STOP" key.

T.Gas heating unit is not operating (no heat)...no spark at burner area when the dryers is first started, and both the heat indicator dot and the "HEAT" relay output L.E.D. (light emitting diode) are on...

1.Fault in sail switch circuit...

a.Sail switch is out of adjustment or has failed.

b.Sail switch damper is not closing or is fluttering.

1)Lint drawer/screen is dirty.

2)Restriction in exhaust.

3)No exhaust airflow.

2.Fault in burner hi-limit circuit or tripped manual reset hi-limit (Gas Only) thermostat.

3.Fault in 225º F (107º C) hi-limit circuit or tripped manual reset hi-limit thermostat.

4.Failed Direct Spark Ignition (DSI) module.

5.Failed DSI igniter/flame-probe assembly.

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Contents ML-200 Non-Tilting Retain This Manual In a Safe Place For Future Reference Foryour Safety Page Table of Contents Section Procedure for Functional Check of Replacement Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsPage Component Identification Specifications GAS and Steam ModelsML-200 Dimensions and Component Location Page Reassembly of Dryer Installation ProceduresPage Page Location Requirements Fresh AIR Supply Exhaust Requirements Page Compressed AIR Supply System Electrical Requirements Electrical InformationMLG-200 Gas Hp Blower/3 Hp Drive Motor MLS-200 Steam Hp Blower/3 Hp Drive Motor Page GAS Information Type of GAS Latest Edition Page System Connections Section H, item Steam InformationPage Compressed Air Supply Air Pressure Diagram Preparation for OPERATION/START-UP Preoperational Tests Basket Coating Shut Down Instructions SERVICE/PARTS Information ServiceParts Returning Warranty Parts Warranty InformationReturning Warranty Cards WarrantyPage Cleaning Routine MaintenanceSteam Dryers only Lubrication AdjustmentsAIR Blower Drive System Component System DescriptionsTumbler Basket Drive System TUMBLER/BASKETLoad Door Switches Safety DevicesSteam Damper Actuator System No Display TroubleshootingFailed reversing contactor relay Failed microprocessor controller computer Page Blown 24 VAC control circuit fuse fuse Page For GAS Models only Excessive noise and/or vibration Tumbler basket out of alignment Procedure for Functional Check Replacement Components Page Page P O R T a N T Manual Reset HI-LIMIT InstructionsADC113142 1- 04/21/00-8