Maytag MDG-50 Installation Manual
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e. Open main door. The dryer must stop and ALL output indicator lights on the back side of the
microprocessor controller (computer) board must go out. (Refer to the illustration on the previous
page.)
f. Try to restart the dryer with the main door open.
g. The microprocessor controller (computer) board's light emitting diode.(L.E.D.) display must read "DOOR."
h. Close the main door and restart the dryer.
i. Functional check of microprocessor controller (computer) board is complete.
2. For Models With Johnson Controls Direct Spark Ignition (DSI) Module (G760)
Theory Of Operation:
Start the drying cycle. When the gas burner ignites within the chosen trial for ignition time (6-seconds), the
flame sensor detects gas burner flame and signals the DSI module to keep the gas valve open...as long as
there is a call for heat. The DSI module will “LOCKOUT” if the gas burner flame is not sensed at the end
of the trial for ignition period. The trial for ignition period will be repeated for a total of three (3) retries/trials
(the initial try and two [2] more retries/trials). If the flame is not sensed at the end of the third retry/trial
(inter-purge period of 30-seconds) the DSI module will “LOCKOUT” (light emitting diode [L.E.D.] flashes).
A steady L.E.D. indicator indicates normal operation.
No L.E.D. indicator indicates a power or an internal failure has occurred.