American Dryer Corp. AD-81 II User Manual
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3. For Direct Spark Ignition (DSI) System Models Manufactured With ADC Module Part No. 882627
a. Upon completing installation of the replacement DSI
module, reestablish power to the dryer.
b. Start the drying cycle.
c. The ignition DSI module’s light emitting diode (L.E.D.)
indicator will light “red” for up to approximately 1.5
seconds (pre-purge time).
d. The module’s indicator light will then turn “green.”
The gas valve will be energized and the ignitor probe
will spark for approximately 8-seconds. The burner
flame should now be established.
e. With the burner flame on, remove the flame sensor
wire from the FS terminal of the DSI module’s indicator
light “red.”
f. The burner flame must shut off and the ignition module
must lockout with the DSI module’s indicator light
“red.”
g. Stop the drying cycle, with the flame sensor wire still removed, restart the drying cycle.
h. The ignition module must proceed through the pre-purge, with the indicator light “red,” the ignition trial
time of approximately 8-seconds, with the indicator light “green,” and then proceed to lockout with the
indicator light “red.”
i.
Functional check of the DSI module is complete.
1) Replace the flame sensor wire from the FS terminal to the DSI module.
CAUTION: LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING THE
COMPUTER BOARD AND THE IGNITION MODULE. WIRING ERRORS CAN
CAUSE IMPROPER AND DANGEROUS OPERATION.