ADC AD-410 service manual

Page 37

If the dryer repeatedly has DSI (Direct Spark Ignition) module "LOCK-OUT" failures, the cause may be due to high voltage not getting into the DSI module ignitor probe assembly.

(1)Check to insure that the red high voltage wire (between the ignitor spark electrode and the DSI [Direct Spark Ignition] module) is not wrapped around the sensor probe wire (the wire between the DSI module FP terminal and the ignitor and flame-probe assembly). If the wires are touching one another, separate and secure in place AWAY FROM ONE ANOTHER.

(2)Check to insure that the dryer is properly grounded and that the ground connections (GND) to the DSI (Direct Spark Ignition) module are secure.

(3)If the problem persists, it is most likely to be in the external components (not the DSI [Direct Spark Ignition] module), or wiring , due to a "FLAME-OUT" ... proceed as follows:

NOTE: Preliminary steps - DO NOT OMIT - to minimize the time required to troubleshoot this system.

(a)Discontinue the electrical service to the dryer.

(b)Visually check the DSI (Direct Spark Ignition) module components for visual damage.

(c)Check wiring for loose connections, nicks or cracking at the ceramic insulator, or shorting of the sensor to the burner.

(d)Inspect the DSI (Direct Spark Ignition) ignitor and flame-probe assembly...

...check electrode for visible cracking at the ceramic insulator or shorting of sensor to burner

...check to insure that the flame sensor rod is positioned over the flame area

...check for carbon deposits on the flame sensor rod

...check to insure that there is a 1/8" gap between the ground rod and the ignitor spark electrode

b.After preforming these inspections and making corrections - if any - restore power to the dryer ... start the dryer and operate through one (1) complete cycle to insure that ALL components are functioning properly. If a no heat condition persists refer to the Troubleshooting Flow Charts on page 35, page 36, and page 37.

1)To effectively use this information or the flow charts, each step must be completed in sequence, performing whatever test are suggested. After the completion of each test, the guide will direct the Service Technician to the next logical step in the troubleshoot sequence based on the outcome of the previous check.

2)Components should be replaced only after each step has been completed and replacements after each step has been completed and replacement is suggested in the flow chart. However, the experienced technician realizes that a loose connection or broken or shorted wire may be at fault where electrical components are concerned... and not necessarily the suspected component itself.

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Contents American Dryer Corporation Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section Troubleshooting AD-410 Reference Guide Base Section AD-410 Machine Operational Summary AD-410 Operator CONTROLS/INDICATORSControl Power On END of Cycle / Heater Fault Indicator / AIR JET AIR JET AD-410 Machine Operation Troubleshooting InformationLoad Tilted Unload TiltedDRY GAS Pressure If Both AIR Flow Switches are not Open AT this TimeImportant Information ONE 1 Burner will not Ignite AT the Beginning of a Cycle System Ladder DiagramONE 1 Burner will not Ignite During a Drying Cycle Solenoid Control Optional Sprinkler Control SignalsLint Drawer / Guard Status Page What to do if YOU Smell GAS Explosion could ResultNational Electric Code ANSI/NFPA no -LATEST Edition StandardsSuggested Cleaning Schedule CleaningLiquids Monthly Lubrication Days After Installation and Every 6 Months Thereafter AdjustmentsGas Dimensions AD-410 with Inlet AIR Adapter Enclosure / AIR Supply / Exhaust Requirements Installation RequirementsElectrical Requirements and GAS Requirements Operational Service Check ProcedureDirect Spart Ignition DSI System COMPONENTS/FUNCTIONS Heat Section24 VAC Direct Spark Ignition DSI Module Repairable ADC Direct Spark Ignition DSI Operation Flow Chart Manometer Troubleshooting the Direct Spark Ignition DSI SystemMAN0677 Page If not, refer to the Second Visual Check on First Visual Check Second Visual Check Third Visual Check Are no Retries Leaks with a Flame Continuously Page Page Create a Potential Safety Hazard Page General Overview Steam Coil System OperationPage Page Page Page Sprinkler System Description Require any adjustment Page Page Supplies Before Servicing the Dryer MAN3169 Tilting System Description Page Tilting Pistons Page Page Page Page AIR JET Assembly Page Blower Squirrel Cage Fan Motor Assembly Leave enough movement for V-belt adjustment Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page Filter and Regulator Assembly Door Systems Page Page Page Page Allow a full 72 hours for the silicone to cure Page Control and Electrical System Page Button does not Disable the High Voltage to the Dryer If the Opposite Side is not LEVEL, the Dryer will not Tilt ºC + Page Page Page Page Page Page MAN3405 Page Page Page Tumbler Basket System Important do not Over Tighten Turnbuckle Install new V-belts Tighten turnbuckle For Gear Reducer removal refer to Section d on page 99 Page Do not tighten 101 102 103 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 107 108 Dryer operates but is taking too long to dry Excessive noise and vibration Dryer will not level from a tilt position Procedure for Functional Check Replacement Components 113 ADC450414 1- 05/27/99-25