ADC ML-82 service manual Computer Logic

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C. COMPUTER LOGIC

1.Operator enters desired selections.

2.Information entered is sent to the microprocessor via the keyboard (touchpad).

3.The input information is sorted, processed and executed by the microcomputer chip.

4.The microcomputer output signal activates the contactors and HSI (Hot Surface Ignition) module which control machine functions.

The wiring diagrams used in troubleshooting are specifically for dryers manufactured at the time of publishing. Your particular model may vary slightly depending on the date of manufacturing and options available. The correct wiring diagram and number is either taped to the rear of the control door or each dryer, or placed in the control box. If your particular diagram is lost or unreadable, call ADC with the serial number of the dryer. ADC will be more than happy to send you a diagram by fax or mail.

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Contents ML-82 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Section SERVICE/PARTS Information Important Information Safety PrecautionsStandards Specifications SPECIFICATIONS/COMPONENT IdentificationSpecifications MLG-82 Gas MLS-82 Steam Component Identification Page Cleaning Routine MaintenanceLubrication AdjustmentsDescription of Parts Control Panel AssemblyDoor Switch Assembly Lint Drawer Lint Drawer SwitchTumbler Bearing Assembly Basket and Support AssemblyTemperature Sensor Bracket Assembly Blower Motor Idler ARM AssemblyDRIVE/FAN Mount Assembly Front Panel Assembly HSI HOT Surface Ignition Burner BOX AssemblySail Switch Assembly Reversing Relay Panel Introduction ServicingTo Replace Computer Board To Replace Keyboard Label AssemblyTo Replace Microprocessor Temperature Sensor Probe Computer ControlsHSI Ignitor Flame Sensor Probe Ignition ControlsTo Remove Hot Surface Ignitor To Remove Flame Sensor ProbeTo Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Replace Gas Valve Refer to burner illustration on To Convert Natural Gas to L.P. Gas To Replace Burner HI-LIMIT Thermostat GAS Models only To Replace Burner TubesTo Replace HSI Module Sail Switch Assembly GAS Models only To Adjust Sail Switch To Replace Sail SwitchTo Install New Main Door Glass To Replace Main Door AssemblyTo Replace Main Door Hinge Block To Replace Front PanelTo Replace Steam Coil Damper System Steam Controls InstallationTo Replace Steam Coil To Replace PistonTo Replace The Needle Valve To Replace the 3-Way Micro ValveTo Replace The Rear Tumbler Bearing Tumbler and Bearing AssemblyTo Replace Tumbler Pulley Reversing To Replace Idler Bearing Idler Shaft and Bearing AssemblyTo Replace The Front Tumbler Bearing To Replace Idler PulleyTumbler Alignment Vertical Drive PulleyTumbler Basket To Replace The Tumbler And/Or Tumbler Support Tumbler Alignment LateralBelts Refer to Illustrations in Sections I and K Belt Tension Adjustment-Tumbler To IdlerTo Replace V-Belts Belt Tension Alignment Motor To IdlerDiagnostic L.E.D. Display Failure Codes Phase 6 OPL System DiagnosticsPage E.D. Display Indicator Number E.D. Light Emitting Diode Display IndicatorsPage Fuse Main Fuse Input L.E.D. Indicator FAN Blower Output L.E.D. light emitting diode IndicatorAIR AIR JET Output L.E.D. Indicator Optional HT1 Heat Output L.E.D. IndicatorSail Sail Switch Input L.E.D. Indicator Lint Lint Door Input L.E.D. light emitting diode IndicatorMain Main Door Input L.E.D. Indicator Drum Tumbler HI-LIMIT Input L.E.D. IndicatorPower Supply Input L.E.D. Indicator E.D. Codes GAS only Ignition Attempt Failure Fault CodesGAS Models only Power 24 VAC is not Evident AT GAS Valve GAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT CircuitComputer will not accept keypad touchpad entries TroubleshootingThermal overload for drive motor is tripping Drive motor runs, burner is on, but basket will not turnDryer operates but is taking too long to dry Overload for impellor fan motor is tripping Burner hi-limit safety thermostat is trippingThere is excessive vibration coming from the basket Electrical Troubleshooting Drive motor reverses but does not forward, blower motor runs No Display ConditionLint Door Condition Blower motor does not operate, drive motor runsTemp Sensor Fail Check Main Door ConditionFor example Technical InformationMotor Plate High and LOW Voltage Contact American Dryer Corporation Data LabelAmerican Gas Association, Canadian Gas Association Data Label Model DryerManual Reset HI-LIMIT Instructions Computer Logic Parts SERVICE/PARTS InformationService Returning Warranty Parts Warranty InformationReturning Warranty Cards Page ML-82 Tool List ADC 450404 1- 12/21/99-50