ADC ML-82 service manual Blower motor does not operate, drive motor runs, Lint Door Condition

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If there is voltage across the two BS3 terminals and no voltage across the coil of the reversing contactor (A1 and A2), the problem is bad wires or terminations between BS1 and the contactor coil.

d.If there is no voltage between the two (2) BS3 terminals on the arc suppressor board, check for voltage across the two (2) AS3 terminals on the board.

If there is voltage across the two (2) AS3 terminals and no voltage across the two (2) BS3 terminals, replace the arc suppressor board.

If there is no voltage across the two (2) AS3 terminals, the problem is bad wires or terminations between the arc suppressor board and the computer 9-pin connector no. 9 or a faulty computer.

4.Blower motor does not operate, drive motor runs

a.Check for voltage across terminals A1 and A2 of the impellor contactor. This is the single contactor in the reversing control box.

If voltage is present check for voltage across the blower motor. If there is voltage at the blower motor replace the motor.

If there is no voltage at the blower motor, the problem is bad wires or terminations between the contactor and the motor.

b.If there is no voltage present at A1 and A2 of the contactor, check for voltage across the two (2) BS1 terminals of the arc suppressor (A.S.) board.

If there is voltage present at the two (2) BS1 terminals, the problem is bad wires or terminations between the two (2) BS1 terminals and the coil (A1 and A2) terminals.

If there is no voltage across the two (2) BS1 terminals, check for voltage across the two (2) AS1 terminals.

If there is voltage across the two (2) AS1 terminals and there is no voltage between the two (2) BS1 terminals, replace the arc suppressor (A.S.) board.

c.If there is no voltage across the two (2) AS1 terminals, the problem is bad wires or terminations between the two (2) AS1 terminals and the computer board J7 9-pin connector no. 7 or faulty computer.

5.Lint Door Condition

NOTE: Make sure main door and lint door are closed. Also, if checking either switch, the plunger must be depressed.

a.Check L.E.D. (light emitting diode) input light “LINT” on the component side of the computer. If the light is on, replace the microprocessor controller (computer).

b.Check voltage (24 VAC) from J7 9-pin connector no. 3 to ground. If voltage is present check no. 4 to ground if voltage is present replace microprocessor controller (computer).

c.If no voltage is present at J7 9-pin connector no. 4 to ground, but voltage is present at no. 3 to ground. The problem is a bad switch, wires or termination between J7 to J11 and J11 to the lint switch.

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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 AdjustmentsDoor Switch Assembly Control Panel AssemblyLint Drawer Lint Drawer Switch Description of PartsTumbler 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 Microprocessor Temperature Sensor Probe To Replace Keyboard Label AssemblyComputer Controls To Replace Computer BoardTo Remove Hot Surface Ignitor Ignition ControlsTo Remove Flame Sensor Probe HSI Ignitor 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 The Needle Valve To Replace PistonTo Replace the 3-Way Micro Valve To Replace Steam CoilTo Replace The Rear Tumbler Bearing Tumbler and Bearing AssemblyTo Replace Tumbler Pulley Reversing To Replace The Front Tumbler Bearing Idler Shaft and Bearing AssemblyTo Replace Idler Pulley To Replace Idler BearingTumbler 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 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. IndicatorMain Main Door Input L.E.D. Indicator Lint Lint Door Input L.E.D. light emitting diode IndicatorDrum Tumbler HI-LIMIT Input L.E.D. Indicator Sail Sail Switch Input L.E.D. IndicatorPower Supply Input L.E.D. Indicator E.D. Codes GAS Models only Power 24 VAC is not Evident AT GAS Valve Fault CodesGAS/ELECTRIC only BURNER/OVEN Open HI-LIMIT Circuit GAS only Ignition Attempt FailureComputer 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
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