American Dryer Corp AD-170 service manual Door condition

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6."No Heat" drive and blower motors run, display reads normal (Steam Models).

A.Check for voltage across terminal block nos 3 and 7.

If no voltage is present, problem is bad wire(s) or termination(s) between terminal block 3 to MP harness connector pin 4.

B.If voltage is present, check for voltage across terminal block nos. 4 and 7.

If no voltage is present, problem is bad wire(s) or termination(s) from terminal block 3 to tumbler hi-limit switch and back to terminal block 4, or faulty tumbler hi-limit switch.

C.If voltage is present across terminal block nos 4 and 7, check for voltage across the Pneumatic Steam Damper Solenoid (red & green wires).

If no voltage is present, problem is bad wire(s) or termination(s) between terminal block nos. 4 and 7 and the Damper Solenoid.

If voltage is present, problem is faulty Damper Solenoid.

7."Door" condition

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

Check LED input light "door" on component side of the computer. If light is on, replace computer.

A. Check voltage (24 VAC) across terminal block nos. 5 and 7.

If voltage is present, problem is bad wire(s) or termination(s) between terminal block 5 and computer 15 pin connector 2, or faulty computer.

If no voltage is present, check for voltage across the 15 pin modular connector nos. 1 and 2 against ground.

If voltage is evident at both points, problem is bad wire(s) or termination(s) between terminal block 5 and pin 2 of the 15 pin modular connector or pin 1 of that same connector to the in-line connector on the output of the 24 volt XFMR located in the computer box area.

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Contents AD-170 Retain This Manual In a Safe Place For Future Reference AD-170Page For Your Safety Table of Contents Sail Switch Assembly Safety Precautions Important InformationRoutine Maintenance CleaningAdjustments LubricationInstallation Requirements Enclosure, Air Supply, and Exhaust RequirementsOperational Service Check Procedure Electrical and Gas RequirementsControl Box Computer Panel AssemblyDescription of Parts DSI Module Gas Models OnlyBlower Motor and Impellor Hz Gas Models Only Gas Burner AssemblyDrive Motor Blower Motor and Impellor 50Hz, 60Hz Steam & 50Hz GasTumbler Bearing and Pulley Arrangement Idler AssemblyBasket Tumbler Sail Switch Gas Models only Main Door SwitchHi-Limit Gas Models Only Lint Drawer Automatic Reset ThermostatLint Drawer Switch Steam Damper SystemServicing IntroductionTo Replace Keyboard Label Assembly Computer Controls To Replace ComputerTo Replace Microprocessor Temperature Sensor Probe Page To Replace Gas Valve see burner illustration on To Replace Main Burner OrificesTo Test and Adjust Gas Water Column Pressure To Convert from Natural Gas to L.P. Gas To Replace Burner Tubes To Replace DSI Module Sail Switch Assembly Gas Models Only To Replace Sail Switch To Adjust Sail SwitchTo Replace Main Door Assembly To Install New Main Door GlassTo Replace Front Panel To Replace Main Door Hinge PadPulleys To Replace Tumbler Pulley To Replace Small Idler PulleyTo Replace Large Idler Pulley To Replace Motor PulleyPage Basket Alignment Lateral Side to Side Adjustment To Replace Tumbler Basket or Tumbler Basket SupportImportant Never strike the shaft directly with a hammer To Replace Front Basket Support Pillow Block Bearing To Replace Front Idler Shaft Pillow Block BearingTo Replace Rear Idler Shaft Pillow Block Bearing Belt Tension Adjustment Basket to IdlerBelts See illustrations in section F Pulleys To Replace V-Belts Belt Tension Adjustment Motor to IdlerMotors To Replace Drive Motor Page To Replace Lint Drawer Switch Lint Drawer Assembly To Replace Lint ScreenImpellor No display on computer TroubleshootingComputer will not accept key pad entries Dryer will not start, but computer display indicators are on Drive motor runs, burner is on, but basket will not turnDryer operates, probe sparks, but gas does not flow Dryer operates but is taking too long to dryThermal overload for drive motor is tripping Dryer is cycling on burner hi-limit safety thermostatOverload for impellor fan motor is tripping Dryer does not start. Display reads door Display reads dSFL. Dryer Sensor Circuit FailureThere is excessive vibration coming from the basket Electrical Trouble Shooting Phase 5 OPL System Diagnostics Diagnostic LED Display Failure CodesLED Display Indicators Page Page LED Display/Codes Cycle StatusLED Display Codes CY FFill Fault Codes Computer Logic and Wiring DiagramPage No Display Condition Page Blower motor does not operate, drive motor runs Door condition Microprocessor reads Dsfl Technical Information Motor Plate High and Low VoltageData Label Contacting American Dryer Corporation ADC Information on the Data LabelUsing a Manometer HOW to USE a ManometerAD-170SE Tool List ADC450400 1- 02/27/98-50