American Dryer Corp ADG-60 service manual Electrical Troubleshooting, No Display Condition

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SECTION IV

ELECTRICAL TROUBLESHOOTING

NOTE: Diagrams used in the section include: BB72611 and all the revisions (a revision is the letter after the number i.e. BB72611 A, B482611.)

NOTE: A volt and ohm meter is needed for this section.

A. No Display Condition

1.Check top pocket circuit breaker panel for this particular dryer. If tripped reset.

2.Check .5 amp fuse located in the control box. If blown replace.

3.Check for voltage (110, 208, 220, 230, 240) across the top motor contactor. This will have two black wires together to one point and two white wires to another point on the contactor. Take a voltage reading across these two points. For 208 volts and higher it will be two black and two red wires.

4.If no voltage, problem is a bad wire or termination between the contactor and the J9 power connector, or from the J9 connector to the incoming voltage. If voltage is present, check for voltage across block numbers 6 and 8.

5.If no voltage, problem is a bad wire or termination between the contactor and the terminal block numbers 6 and 8. If voltage is present, check for voltage across pins 1 and 4 of the computer 4 pin connector (J12).

6.If there is no voltage, the problem is a bad wire or termination between terminal block numbers 6 and 8 and the 4 pin connector (J12). If voltage is present, the problem is a faulty computer

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Contents VAC Phase Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Electrical Troubleshooting Cleaning SectionAdjustments LubricationTo remove control middle or lint lower door To remove gas valve train assemblyTo Remove Lint Drawer To Remove Front Panel To Remove and Replace Lint Drawer Switch AssemblyTo Remove Control Box To Remove and Replace Sensor Bracket and Components To Remove or Replace Belt Loctite To Remove or Replace Motor Reverse steps 1 through Loctite Belt and Idler Tension Adjustment To Remove or Replace Impellor FanFan Belt and Tension Adjustment To Replace Dual Control Microprocessor DMC ComputerTo Replace Touchpad Keypad To Replace Coin AcceptorTo Replace either Motor Relay Basket Tumbler Alignment VerticalBasket Tumbler Alignment Lateral To Replace Basket tumbler or Basket tumbler Support Loctite To Replace Basket tumbler Support Pillow Block Bearing Important Never strike the shaft directly with a hammerPage To Replace Basket Tumbler Support Flange Bearing To Replace 330º F Burner Hi-Limit Switch Thermostat To Replace Direct Spark Ignition DSI Module To Replace Sail SwitchTo Replace Main Door Switch AA. To Replace Ignitor and Probe BB. To Replace Gas ValveDiscontinue power to the dryer DD. To Replace Coin VaultGG. To Replace Main Door Gasket FF. To Install New Main Door GlassEE. To Remove Main Door HH. To Replace Main Door HingeTroubleshooting No L.E.D. DisplayDMC computer L.E.D. display reads dSFL DMC computer L.E.D. display reads Hot DMC computer L.E.D. display reads SeflIf dryer is equipped with optional battery back up Dryer operates, but is taking to long to dry Condensation on main door glassDryer is making scraping noise at basket tumbler area Excessive noise or vibrationElectrical Troubleshooting No Display ConditionNo Start Condition Motor Doesnt Turn No Heat Condition Gas DOOr Condition DSFL Condition Technical Information Data LabelUsing a Manometer HOW to USE a ManometerE.D. Display Codes ClccFill Phase 5 System Diagnostics Diagnostic L.E.D. Display Failure CodesE.D. Display Indicators DOT Phase 5 DMC Computer Relay Output L.E.D. IndicatorsPhase 5 DMC Computer Input and Output L.E.D. Indicators WR ADC450162 1- 10/15/98-50