American Dryer Corp AD-95 service manual Lint Door Condition, Main Door Condition

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

If there is no voltage across the two BS1 terminals, check for voltage across the two AS1 termi- nals.

If there is voltage across the two AS1 terminals and there is no voltage between the two BS1 terminals, replace the arc suppressor board.

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

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. input light "LINT" on the component side of the computer. If the light is on, replace the computer.

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

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 J8 and J8 to the lint switch no. 20 and 21.

D.If no voltage is present at J7 9-pin connector no. 3 to ground, then voltage should not be present at no. 5 to ground. Replace the board.

6. Main 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. input light "MAIN" on the component side of the computer. If the light is on, replace the computer.

B.Check voltage (24 VAC) from J7 9-pin connector no. 5 to ground. If voltage is present, check no. 6 to ground. If voltage is present, replace board.

C.If no voltage is present at J7 9-pin connector no. 6 to ground, but voltage is present at no. 5 to ground. The problem is a bad switch, bad wires or terminations J7 to J8. J8 to J5 and J5 to main door switch no. 31 and no. 32.

7."No Heat" drive and blower motors run, display reads normal (gas models).

A.Check L.E.D. input light "HT1" on the component side of the computer. If the light is on replace the board.

B.If the L.E.D. input light "HT1" on the component side of the computer is on and there is no voltage to the HSI module "w" the display will read "BURNER CONTROL FAIL." The problem is bad wires or terminations between microprocessor and HSI module.

C.If voltage is present on the HSI module "w" to ground. Check voltage at the gas valve if voltage is present across the two yellow wires at the gas valve and the gas supply is on then the fault is that of the gas valve.

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Contents AD-95/ML-95 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Troubleshooting Section Safety PrecautionsWeekly CleaningDays MonthsAdjustments Seven Days after Installation and every 6 MonthsLubrication Electrical and Gas Requirements Enclosure, Air Supply, and Exhaust RequirementsOperational Service Check Procedure As of February 11 Prior to February 11 Control Panel MicroprocessorWith fuses With circuit breaker Reversing Relay PanelHSI Module Gas Models Gas Burner AssemblyBlower Motor and Impeller Drive MotorTaperlock Trantorque Drive Shaft Assembly Transtorque Taperlock Idler Shaft AssemblyBasket Tumbler Main Door SwitchHi-Limit Gas Models Only Sail Switch Gas Models OnlyLint Screen Automatic Reset ThermostatLint Drawer Switch Computer Controls ServicingTo Replace Keyboard Label Assembly Ignition Controls To Remove Flame Sensor ProbeHSI Ignitor Flame Sensor Probe To Test and Adjust Gas Water Column Pressure To Replace Gas Valve See burner illustration onTo Replace Main Burner Orifices To Replace Burner Tubes To Convert Natural Gas to L.P. GasTo Replace HSI Module Discontinue power to the dryerSail Switch Assembly Gas Models Only To Replace Sail SwitchTo Adjust Sail Switch To Replace Main Door Assembly To Replace Main Door SwitchTo Install New Main Door Glass as of October 24 Front Panel and Main Door AssembliesAs of October 24 Prior to October 24 To Install new Main Door Glass prior of October 24 To Replace Front PanelTo Replace Main Door Hinge Block To Replace Drive Motor Pulley Pulleys To Replace Drive Shaft PulleyPage Tumbler Wheel Replacement on IdlerAssembly taper lock models To Replace Blower Shaft Pulley Tumbler Wheel Replacement on IdlerAssembly trantorque modelsTo Replace Blower Motor Pulley Basket AssemblyTo Replace Drive Assembly Pillow Block Bearing Belt Adjustment Motor to Drive AxleTo Replace Idler Shaft Pillow Block Bearing To Replace Drive Motor V-Belts MotorsTo Replace Impeller Motor Fan Shaft Drive To Replace Front Thruster Wheels To Replace Blower Motor V-beltsImpeller Rear AccessLint Screen Assembly To Replace Lint Door SwitchTo Replace Lint Screen Computer will not accept key pad entries No display on computerDryer will not start, but computer display indictors are on Drive motor runs, burner is on, but basket will not turnBurner hi-limit safety thermostat is tripping Thermal overload for drive motor is trippingOverload for impeller fan motor is tripping There is excessive vibration coming from the basket Phase 6 OPL System Diagnostics Page E.D. Display Indicators E.D Display Indicator Number FAN Blower Output L.E.D. Indicator AIR AIR JET Output L.E.D. Indicator OptionalFuse Main Fuse Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. Indicator E.D. Codes DRUM Safety Fail BURNER Safety FailBURNER Control Fail BURNER Flame Fail Computer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs Drive motor reverses but does not forward, blower motor runsMain Door Condition Lint Door ConditionMicroprocessor Which Must be Reset Manually For example Technical InformationData Label HOW to USE a Manometer AD-95/ML-95 Tool List ADC450188 1- 01/14/99-25
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