American Dryer Corp ADG-464 manual Possible Solutions

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b)POSSIBLE SOLUTIONS;

1b) For Air Flow problems refer to SECTION III - Item D (External Supply Connections) - paragraph #4 (Exhaust Air Ducting) on page 20 and page 21.

NOTE: An illuminated “RED” L.E.D. (light emitting diode) indicator on the HI-TEMP CONTROLLER indicates that the Hi-Limit control relays is in “ALARM” and an internal relays is “OPEN”.

If anyone of the HI-LIMIT Temperature SENSORS sense an over temperature condition. It will open its control relay. (Refer to the AD-464 Ladder Diagram for the effect of this relay).

If a “HI-TEMP FAULT” message is displayed, open the main electrical enclosure, and notice which channel has cycled. This will lead one in the direction of the fault.

HLS1 = MAXIMUM INTAKE TEMPERATURE

HLS2 = MAXIMUM OVER BURNER TEMPERATURE HLS3 = MAXIMUM EXHAUST TEMPERATURE

The HI-TEMP controller channel that has a “GREENL.E.D. (light emitting diode) “ON,” indicates the RTD (Resistive Temperature Device) that caused the message (HI-TEMP FAULT) to be displayed.

Let the dryer cool and verify that “GREEN” L.E.D.’s resume scanning. Reset the controller by pressing the “REST” on the controller. This will verify that an over temperature condition occurred and the controller is operational.

Go to paragraph #1b above and check air flow.

If the HI-LIMIT controller does not reset go to paragraph #3b on page 72.

2b) If either RTD (Resistive Temperature Device) 1, 2, 3 were to open or become disconnected, the associated temperature channel, of the hi-temp controller located on the Main Electrical Panel, will sense the open and react by opening its respective control relay and never reenergize until the RTD was replaced. Once a HI-LIMIT controller problem has been isolated to a particular device, and a RTD temperature sensor is suspected:

Check the resistance of the RTD (Resistive Temperature Device) at its connector, located in the right hand cable through.

If 0 ohms (0 Ω) is measured;

Check RTD (Resistive Temperature Device)

Check wiring to the RTD (refer to the main panel wiring diagram)

Check wiring to the HI-LIMIT temperature controller (refer to the AD-464 Main Panel Wiring Diagram).

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Contents ADG-464 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 SPECIFICATIONS/DIMENSIONSDimensions 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 RequirementsElectrical Service Specifications PER Dryer 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 Additives or Solvents Compressed AIR SystemPage Page GAS Burner and Ignition System Switch #1 Recycling Mode Page Page Page Page Page Page Page Safety Devices Level Fault 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 If no, go to 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 Wiring Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Motors Circuit Wiring to the Analog Input ModuleMotor Protection Device Descriptions Motor Actuation Problems Probable CausesBurner Controller stops heat PLC Programmable Logic Controller Error Messages