American Dryer Corp ML-145, ML-170 service manual D. Display/Codes, E.D. Display Operating Status

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SECTION IX

L.E.D. DISPLAY/CODES

The L.E.D. (light emitting diode) display informs the operator of cycle status, program verification, and displays important diagnostic codes and fault codes.

A.L.E.D. DISPLAY OPERATING STATUS

1.Cycles in Progress

a.While the dryer is operating, the L.E.D. display will read which cycle is in progress. For example, in Drying Cycle (Mode), the L.E.D. display will read “dRYING” and in the Cool Down Cycle (Mode) the L.E.D. display will read “COOL.”

2.Cycle Status

a.While a cycle is in progress, the L.E.D. display will show the progress of the cycle (load) that is being processed.

1)Automatic Drying Cycle

a)While a cycle is in progress the cycle status, elapse time and dRUM TEMP will be displayed with [PL5] FLASH active (NFLASH active the “ENTER/START” key must be pressed to display dRUM TEMP). Approximately half way through the drying cycle, the cycle status portion of the L.E.D. will display (i.e. dRY LEVEL 68 PcT). The display will change and count upward until the percentage of extraction programmed is reached.

2)Timed (Manual) Drying Cycle

a)While a cycle is in progress the cycle status, time remaining and dRUM TEMP will be displayed with [PL5] FLASH active (NFLASH active the “ENTER/START” key must be pressed to display dRUM TEMP).

3.Alternate Display Programs

a.Programming allows for the L.E.D. display to read just the tumbler (basket) temperature or flash back and forth from Cycle in Progress or Tumbler (Basket) Temperature while the dryer cycle is in progress. Unless otherwise specified at the time of ordering the dryer, the Phase 6 OPL microprocessor controller (computer) is programmed not to flash and to read the Cycle in Progress.

NOTE: Refer to the illustration on the following page for details.

4.Indicator Dots (refer to page 50)

a.Located at the top of the L.E.D. display is a series of dots which indicate the various Phase 6 OPL microprocessor controller (computer) output functions while a cycle is in progress.

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Contents American Dryer Corporation ML-145 / ML-170Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Section Technical Information Important Information Safety PrecautionsStandards Cleaning Routine MaintenanceLubrication AdjustmentsElectrical and GAS Requirements Installation RequirementsENCLOSURE, AIR SUPPLY, and Exhaust Requirements Operational Service Check Procedure Gas 10.5 inches water column 26.1 mb Control Panel Microprocessor Description of PartsControl Panel NON-MICROPROCESSOR Control BOXHSI HOT Surface Ignition Module GAS Burner AssemblyGas Models only Drive MotorTumbler Basket Bearing and Pulley Arrangement Idler AssemblyBlower Motor and Impellor GAS and Steam Tumbler Basket Main Door SwitchSail Switch Gas Models only Lint Drawer Automatic Reset ThermostatHI-LIMIT Gas Models only Temperature Sensor Bracket NON-COMPUTER Lint Drawer SwitchSteam Damper System Compressed AIR RequirementsIntroduction ServicingComputer Controls To Replace ComputerTo Replace Microprocessor Temperature Sensor Probe To Replace Keyboard Touchpad Label AssemblyTo Replace Gas Valve Refer to above burner illustration To Remove Flame Probe AssemblyIgnition Controls To Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Replace Burner Tubes To Convert from Natural Gas to L.P. GasTo Replace Burner Hi-Limit Thermostat Gas Models Only To Replace HSI Hot Surface Ignition ModuleThermostats To Replace Sail Switch Sail Switch Assembly Gas Models onlyTo Replace Main Door Assembly To Adjust Sail SwitchTo Replace Front Panel To Install New Main Door GlassTo Replace Tumbler Basket Pulley To Replace Main Door Hinge BlocksPulleys To Replace Large Idler Pulley To Replace Small Idler PulleyTo Replace Motor Pulley Tumbler Basket AssemblyTumbler Basket Alignment Vertical Up and Down Adjustment To Replace Tumbler Basket or Tumbler Basket Support Tumbler Basket Alignment Lateral Side to Side AdjustmentImportant Never strike the shaft directly with a hammer To Replace Front Idler Shaft Pillow Block Bearing To Replace Front Tumbler Basket Support Pillow Block BearingBelts Refer to illustrations in section F Pulleys Belt Tension Adjustment Tumbler Basket to IdlerTo Replace Rear Idler Shaft Pillow Block Bearing To Replace V-Belts Belt Tension Adjustment Motor to IdlerMotors To Replace Drive MotorImpellor To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint ScreenComputer will not accept keyboard touchpad entries TroubleshootingDisplay is reading no Airflow Display is reading Rotation Sensor FailDisplay is reading Drum Safety Fail Display is reading Sail Switch FailDisplay is reading Burner Safety Fail Display is reading No HeatDisplay is reading Burner Flame Failure Display is reading Burner Control FailureDisplay is reading Main Door Display is reading Lint DoorThermal overload for drive motor is tripping Display is reading HotDryer operates but is taking too long to dry There is excessive vibration coming from the tumbler basket Overload for impellor fan motor is trippingElectrical Troubleshooting Diagnostic L.E.D. light emitting diode Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. light emitting diode Display IndicatorsE.D. Display Indicator Number HT1 Heat Output L.E.D. Indicator FAN Blower Output L.E.D. light emitting diode IndicatorAIR AIR JET Output L.E.D. Indicator Optional Lint Lint Door Input L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler Basket HI-LIMIT Input L.E.D. IndicatorPower Supply Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. IndicatorE.D. Display Operating Status D. DISPLAY/CODESPhase 6 OPL Microprocessor L.E.D. Displays ALL REV E.D. Codes 1. Display CodesGAS only Ignition Attempt Failure GAS Models only Power 24 VAC is not Evident AT GAS ValveGAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit Computer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs No Heat Drive and Blower Motors Run Steam Models No Heat Drive and Blower Motors Run Gas ModelsDoor Condition Motor Plate High and LOW Voltage Technical InformationInformation on the Data Label Data LabelHow to Use a Manometer Using a ManometerML-170 Tool List ADC 450429 1- 02/18/00-25