Power Supply Input L.E.D. Indicator | American Dryer Corp ML-170

12.“FLAME” (bURNER CONTROL FAIL) Input L.E.D. Indicator

a.This routine monitors the ignition control’s gas valve output response. If the valve output signal is not present from the ignition control within the valve time limits the microprocessor determines the ignition control has failed. If this occurs when the cycle is active the “FLAME” output L.E.D. (light emitting diode) indicator will go out and the display will read “bURNER CONTRL FAIL.” The machine will run with no heat for three (3) minutes or until the temp drops below 100º F (38º C). Then the machine will shut down still displaying “bURNER CONTRL FAIL” with an audio indication.

13.“POWER SUPPLY” Input L.E.D. Indicator

a.Should be on at ALL times (even if the dryer is not running). The power supply L.E.D. (light emitting diode) output indicator will not be on if the power supply fuse to the Phase 6 OPL microprocessor is not present. If the power supply fuse is faulty the L.E.D. output will be off and there will be no display or keyboard (touchpad) function. The “FUSE,” “LINT,” and “DRUM” output L.E.D. indicators will remain on.

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American Dryer Corp ML-170, ML-145 Flame bURNER Control Fail Input L.E.D. Indicator, Power Supply Input L.E.D. Indicator

Contents

ML-145 / ML-170 American Dryer Corporation Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Section Technical Information Safety Precautions Important Information Standards Routine Maintenance Cleaning Adjustments Lubrication ENCLOSURE, AIR SUPPLY, and Exhaust Requirements Installation RequirementsElectrical and GAS Requirements Operational Service Check Procedure Gas 10.5 inches water column 26.1 mb Description of Parts Control Panel MicroprocessorControl Panel NON-MICROPROCESSOR Control BOX GAS Burner Assembly HSI HOT Surface Ignition ModuleGas Models only Drive Motor Blower Motor and Impellor GAS and Steam Idler AssemblyTumbler Basket Bearing and Pulley Arrangement Sail Switch Gas Models only Main Door SwitchTumbler Basket HI-LIMIT Gas Models only Automatic Reset ThermostatLint Drawer Lint Drawer Switch Temperature Sensor Bracket NON-COMPUTERSteam Damper System Compressed AIR Requirements Servicing IntroductionComputer Controls To Replace Computer To Replace Keyboard Touchpad Label Assembly To Replace Microprocessor Temperature Sensor Probe Ignition Controls To Remove Flame Probe AssemblyTo Replace Gas Valve Refer to above burner illustration To Test and Adjust Gas Water Column Pressure To Replace Main Burner Orifices To Convert from Natural Gas to L.P. Gas To Replace Burner Tubes Thermostats To Replace HSI Hot Surface Ignition ModuleTo Replace Burner Hi-Limit Thermostat Gas Models Only Sail Switch Assembly Gas Models only To Replace Sail Switch To Adjust Sail Switch To Replace Main Door Assembly To Install New Main Door Glass To Replace Front Panel Pulleys To Replace Main Door Hinge BlocksTo Replace Tumbler Basket Pulley To Replace Small Idler Pulley To Replace Large Idler Pulley Tumbler Basket Alignment Vertical Up and Down Adjustment Tumbler Basket AssemblyTo Replace Motor Pulley Tumbler Basket Alignment Lateral Side to Side Adjustment To Replace Tumbler Basket or Tumbler Basket Support Important Never strike the shaft directly with a hammer To Replace Front Tumbler Basket Support Pillow Block Bearing To Replace Front Idler Shaft Pillow Block Bearing To Replace Rear Idler Shaft Pillow Block Bearing Belt Tension Adjustment Tumbler Basket to IdlerBelts Refer to illustrations in section F Pulleys Belt Tension Adjustment Motor to Idler To Replace V-BeltsMotors To Replace Drive Motor Impellor Lint Drawer Assembly To Replace Lint Screen To Replace Lint Drawer Switch Troubleshooting Computer will not accept keyboard touchpad entries Display is reading Rotation Sensor Fail Display is reading no Airflow Display is reading Sail Switch Fail Display is reading Drum Safety FailDisplay is reading Burner Safety Fail Display is reading No Heat Display is reading Burner Control Failure Display is reading Burner Flame FailureDisplay is reading Main Door Display is reading Lint Door Dryer operates but is taking too long to dry Display is reading HotThermal overload for drive motor is tripping Overload for impellor fan motor is tripping There is excessive vibration coming from the tumbler basket Electrical Troubleshooting Phase 6 OPL System Diagnostics Diagnostic L.E.D. light emitting diode Display Failure CodesPage E.D. light emitting diode Display Indicators E.D. Display Indicator Number E.D. Display Indicator Number AIR AIR JET Output L.E.D. Indicator Optional FAN Blower Output L.E.D. light emitting diode IndicatorHT1 Heat Output L.E.D. Indicator Fuse Main Fuse Input L.E.D. Indicator Lint Lint Door Input L.E.D. IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler Basket HI-LIMIT Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. Indicator Power Supply Input L.E.D. Indicator D. DISPLAY/CODES E.D. Display Operating Status Phase 6 OPL Microprocessor L.E.D. Displays E.D. Codes 1. Display Codes ALL REV GAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS only Ignition Attempt Failure Computer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs No Heat Drive and Blower Motors Run Gas Models No Heat Drive and Blower Motors Run Steam Models Door Condition Technical Information Motor Plate High and LOW Voltage Data Label Information on the Data Label Using a Manometer How to Use a Manometer ML-170 Tool List ADC 450429 1- 02/18/00-25