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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. OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment

or specified in the AD-310 Phase 7 Tilting Installation Manual (ADC Part No. 1 1311 1)

included with the dryer.

IMPORTANT: UNDER NO CIRCUMSTANCES SHOULD ANY SAFETY or HEA T

CIRCUIT DEVICES EVER BE DISABLED.

THE FOLLOWING PIECES O F TEST EQUIPMENT W ILL BE REQUIRED T O TROUBLESHOOTTHIS SYSTEM WITH MINIMAL T IME AND EFFORT
Available From ADC
MANOMETER
Used To Measure Gas Pressure In Inches
Of Water Column (W.C.)
DSI IGNITOR GAP FEELER GAUGE
(1/8” [3.175 mm])
Used For Checking Gap Between Ignitor/
Flame-Probe Assembly and Spark Electrode
Available From ADC
MULTIMETER/VOLTMETER
For Measuring Voltage