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1.Direct Spark Ignition (DSI) Troubleshooting Terms (definitions)
a.DSI (Direct Spark Ignition) MODULE "RED" L.E.D. (Light Emitting Diode) INDICATOR LIGHT
This "red" L.E.D. (light emitting diode) light is located in the upper right corner of the DSI (Direct Spark Ignition) module (refer to the top illustration on page 30). This is a diagnostic indicator that simplifies the operational and troubleshooting procedures of the DSI system.
b.
c.
d.RECYCLE - flame has been sensed but lost. Initiate a new sequence (THERE ARE NO RETRIES).
2.Troubleshooting and System Basic Diagnosis
a.Preliminary Steps
The following steps must be preformed to minimize the time required to isolate cause of fault.
1)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator light is off (no "red" or "green" light).
a) Check for voltage (approximately 24 VAC) across the
DSI model terminals "TH" and "GND...
If voltage (approximately 24 VAC) is evident, then, there is a malfunction within the DSI module itself, and it must be replaced.
If there is no voltage present, then problem is not the DSI module or the ignition system, the problem elsewhere in the dryer (i.e., dryers' heat circuit [sail switch,
2)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "red" for approximately 1.5 seconds (prepurge). This indicates that ALL the controls (including ALL the safety circuits) are functioning and power is being supplied to the DSI module.
3)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "green." This indicates a normal heating cycle. This also indicates that the preliminary diagnostics of the module has confirmed that the DSI module is functional.
4)DSI (Direct Spark Ignition) module L.E.D. (light emitting diode) indicator lights "red" continuously...
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