American Dryer AD-120ES Troubleshooting, No L.E.D. display microprocessor computer models only

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SECTION VII

TROUBLESHOOTING

IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY 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 Health Administration)

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.

WARNING: ALL SERVICE and TROUBLESHOOTING SHOULD BE PERFORMED BY A QUALIFIED PROFESSIONAL OR SERVICE AGENCY.

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

MICROPROCESSOR (COMPUTER) MODELS

A.No L.E.D. display (microprocessor [computer] models ONLY) ...

1.Service panel fuse blown or tripped breaker.

2.Blown control circuit L1 or L2 fuse.

3.Failed microprocessor controller (computer).

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

1.Failed drive motor contactor (relay).

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Contents AD-120ES Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Important Information SectionWhat to do if YOU Smell GAS Safety PrecautionsStandards Specifications Specifications / Component IdentificationADG-120ES ADE-120ES ADS-120ES Dryer Front View Component IdentificationDryer Rear View Location Requirements Installation ProceduresUNPACKING/SETTING UP Leveling Dryer Dryer Enclosure Requirements Fresh AIR Supply General Exhaust Duct Work Information Exhaust RequirementsPage Single Dryer Venting Multiple Dryer Common Venting Page ADG-120ES for GAS Models ADE-120ES for 80 KW Electric Models Page Electrical Information ADG-120ES Reversing, 3ø GAS ADS-120ES Reversing, 3ø Steam Electrical Service Specifications PER DryerADE-120ES 72 Kw Electric Reversing, 3ø ADE-120ES 80 Kw Electric Reversing, 3ø Page Page Gas Supply GAS InformationType of Gas Page Page Installation Instructions Steam Coil PH LevelSteam Requirements , High Pressure Steam Damper System Steam Damper System Operation Steam Damper AIR System ConnectionsSteam Damper AIR Piston Flow Control Operation Adjustment Preparation for Operation Natural GAS Preoperational TestsPage Page Operating Instructions Shut Down Instructions SERVICE/PARTS Information ServiceParts Returning Warranty Parts Warranty InformationReturning Warranty Cards WarrantyPage Cleaning Routine MaintenanceDays Lubrication AdjustmentsTroubleshooting No L.E.D. display microprocessor computer models onlyDrive motor not operating does not start Blower motor not operating does not start Microprocessor controller computer display reads door Microprocessor computer display reads dSFLPage No heat for Electric Models only No heat for Steam Models onlyCondensation on main door glass Dryer operates but is taking too long to dryExcessive noise and/or vibration Dryer or scraping noise at basket tumbler areaFailed reversing timer for Reversing Models only Drive motor only not operating does not startBlower impellor/fan motor only not operating does not start Dryer operates but is taking too long to dry load Heat unit not operating for only one 1 temperature selectionFailed hi-limit thermostat for GAS and Electric Models only Sail switch is fluttering for GAS and Electric Models onlyDryer scraping noise at basket tumbler area Timing Legend Reversing Timer SPIN/DWELL AdjustmentsMicroprocessor computer Board Procedure for Functional Check Replacement ComponentsDirect Spark Ignition DSI System