Not on, Gas models – American Dryer Corp. AD-385 User Manual
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P. Heating unit is not operating (no heat)...no voltage at heating unit (i.e., DSI module,) when
dryer is first started and the microprocessor controller (computer) heat indicator dot is on
but the "HEAT" relay output LED is
NOT ON.
1. Failed microprocessor controller (computer).
Q. No heat...voltage is confirmed at heating unit (i.e., DSI module,)...
Gas Models
1. Fault in Direct Spark Ignition (DSI) system...
a. Ignitor sparks but no ignition and Direct Spark Ignition (DSI) module locks out (red LED
indicator light stays on)...
1) Ignitor probe assembly is out of adjustment or has failed.
2) Severe air turbulence.
3) Failed Direct Spark Ignition (DSI) module.
4) Failed gas valve.
b. Ignitor sparks, burner lights, but goes off right away...
1) DSI ignitor flame probe is out of adjustment or has failed.
2) Sail switch is fluttering...
a) Lint screen is dirty.
b) Restriction in exhaust duct work.
c. Ignitor does not spark and Direct Spark Ignition (DSI) module locks out (red LED
indicator light stays on)...
1) Fault in high voltage (HV) wire...break or loose connection.
2) Failed ignitor probe assembly.
3) Failed Direct Spark Ignition (DSI) module.
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