American Dryer Corp MLG-460 manual Ctrl Volt OFF, Intake, Exhaust Dsfl, Door Open, Screen Fault

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H. PLC (Programmable Logic Controller) ERROR MESSAGES

The diagnostics messages have been provides to aid troubleshooters in diagnosing and repairing dryer problems. The message are intended to direct one to a particular fault area for further testing; not to diagnose the machine for you.

NOTE: Not ALL ML-460 dryer symptoms have faults messages.

The following information describes the action the dryer will take while displaying a particular message.

ERROR M ESSAGES	ML-460 IDLING	ML-460 RUNNING

CTRL VOLT OFF	Cannot operate machine	Stops dryer

INTAKE	Cannot operate machine	Stops dryer

EXHAUST DSFL	Cannot operate machine	Stops dryer

DOOR OPEN	Cannot operate machine	Stops dryer

SCREEN FAULT	Cannot operate machine	Stops dryer

MOTOR FAULT	Cannot operate machine	Stops dryer

GAS FAULT	Not Applicable	Burner Controller stops heat

AIR FAULT	Not Applicable	Burner Controller stops heat

HEATER FAULT	Not Applicable	Burner Controller stops heat

HI-TEMP FAULT	Not Applicable	Burner Controller stop heat

DRUM FAULT	Not Applicable	Burner Controller stops heat

LEVEL FAULT	Cannot operate machine	Stops dryer

LINE FAULTS*	Cannot operate machine	Cannot operate machine

*This message is generated by the operator terminal itself; it indicates that communication between the operator terminal and PLC (Programmable Logic Controller) have discontinued.

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Contents MLG-460 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Service Parts Returning Warranty Cards Parts Returning Warranty PartsTroubleshooting TOC Section What to do if YOU Smell GAS Safety PrecautionsPage Specifications SpecificationsSpecifications Reassembly of Dryer Installation ProceduresPage Page Location Requirements Internal AIR, Electric and Water Connections Page Page Page Page Page Left Drum Motor External Supply Connections Page Page Electrical Requirements Electrical RequirementsMLG-460 Page Fresh AIR Supply Requirements Preparation for Operation PRE START-UPCleaning Routine MaintenanceMonthly Component System Descriptions Page Page Main AIR Blower and Heat Reclaimer System Page Compressed AIR System Page Page GAS Burner and Ignition System Switch #2 Intermittent Pilot Page Page Page Page Page Page Page Safety Devices Door Open Parts ServiceReturning Warranty Cards WarrantyReturning Warranty Parts Page Troubleshooting Power Malfunctions Possible SolutionsProbable Causes No Control Power Blue Light Off Machine Main Power Shuts Down Blue Indicator Off 2CRB Sprinkler Circuit Description Page Front Panel Blue Light and RED Light on Possible Solutions Unless the Water Valve to the Sprinkler is Closed General DescriptionBurner Section Input Circuit Component Description Burner Controller Input Signal ComponentsBurner Ignition IntroductionLoad Door Switch DS1B Stop Detector Relay Contact SMD no Output Signal Component DescriptionGAS Fault Message gas system only Heater Fault Message Possible Solutions Page Page AIR Fault Message HI-TEMP Fault Message Possible Solutions Drum Fault Message Page Tumbler Basket Section Electrical Components Tumbler Basket Section Electrical MalfunctionsFollowing is for 2-Door Models only Rear Panel Control Problems Probable Causes Possible Solutions PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UP Unload 1 Selection Probable CausesDoor Open Problem Drum Fault Message Malfunction Probable Causes Page Base Section Electrical Malfunctions Front Door SwitchRear Down Switch LS2 Lint Drawer Proximity SwitchesLint Chamber Pressure Switch PS3 Tumbler Basket Tilt Problems Level FaultProbable Solutions Page Lint Screen Mechanism Problem Screen Fault Lint Chamber Air Pressure Problem AIR Fault Pendant Electrical Components Pendant Control MalfunctionsVerify Pendant Electrical Signals ML-460 Pendant Assembly Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Motors Circuit Wiring to the Analog Input ModuleMotor Protection Device Descriptions Motor Actuation Problems Probable CausesAIR Fault Screen FaultMotor Fault GAS Fault