American Dryer ML-200 manual Troubleshooting, No Display

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SECTION VIII

TROUBLESHOOTING

IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFOREANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and HealthAdministration) STANDARDS.

The information provided will help isolate the most probable component(s) associated with the difficulty described. The experienced technician realizes, however, that a loose connection or broken/shorted wire may be at fault where electrical components are concerned ... and not necessarily the suspected component itself. Electrical parts should always be checked for failure before being returned to the factory. The information provided should not be misconstrued as a handbook for use by an untrained person making repairs.

IMPORTANT: When replacing blown fuses, the replacement must be of the exact rating as the fuse being replaced. For information provided should not be misconstrued as a handbook for use by an untrained person in making repairs.

WARNING: ALL SERVICE and TROUBLESHOOTING SHOULD BE PERFORMED BYA QUALIFIED PROFESSIONALor SERVICE AGENCY.

WARNING: WHILE MAKING REPAIRS, OBSERVEALLSAFETY PRECAUTIONS DISPLAYED ON THE DRYER or SPECIFIED IN THIS MANUAL.

A.No Display...

1.Service panel fuses blown or tripped breaker.

2.Blown F1 (fuse 1) or F2 (fuse 2) on left hand control panel.

3.Failed microprocessor controller (computer).

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

*Microprocessor controller (computer) relay output indicator (either forward "FWD" or reverse "REV") is on.

1. Blown drive motor conductor fuse(s)/overload(s).

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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 Section Important InformationSafety Precautions What to do if YOU Smell GASPage Specifications GAS and Steam Models Component IdentificationML-200 Dimensions and Component Location Page Installation Procedures Reassembly of DryerPage Page Location Requirements Fresh AIR Supply Exhaust Requirements Page Compressed AIR Supply System Electrical Information Electrical RequirementsMLG-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 Steam Information System Connections Section H, itemPage Compressed Air Supply Air Pressure Diagram Preparation for OPERATION/START-UP Preoperational Tests Basket Coating Shut Down Instructions Service SERVICE/PARTS InformationParts Warranty Warranty InformationReturning Warranty Cards Returning Warranty PartsPage Routine Maintenance CleaningSteam Dryers only Adjustments LubricationTUMBLER/BASKET Component System DescriptionsTumbler Basket Drive System AIR Blower Drive SystemSafety Devices Load Door SwitchesSteam Damper Actuator System Troubleshooting No DisplayFailed 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 Manual Reset HI-LIMIT Instructions P O R T a N TADC113142 1- 04/21/00-8