B. TROUBLESHOOTING THE DIRECT SPARK IGNITION (DSI) SYSTEM

NOTE: The troubleshooting information provided in this manual is intended for use by qualified service technicians only. OBSERVEALLSAFETY PRECAUTIONS displayed on the equipment or specified in the ML-310 Phase 7 Tilting Installation Manual (ADC Part No. 113127) included with the dryer.

IMPORTANT: UNDER NO CIRCUMSTANCES SHOULD ANY SAFETY or HEAT CIRCUIT DEVICES EVER BE DISABLED.

THE FOLLOWING PIECES OF TEST EQUIPMENT WILL BE REQUIRED TO TROUBLESHOOT

THIS SYSTEM WITH MINIMAL TIME AND EFFORT

DSI IGNITOR GAP FEELER GAUGE

(1/8” [3.175 mm])

Used For Checking Gap Between Ignitor/

MANOMETERFlame-Probe Assembly and Spark Electrode Used To Measure Gas Pressure In Inches

Of Water Column (W.C.)

Available From ADC

MULTIMETER/VOLTMETER

For Measuring Voltage

Available From ADC

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American Dryer Corp ML-310 Phase 7 Troubleshooting the Direct Spark Ignition DSI System, DSI Ignitor GAP Feeler Gauge