American Dryer Corp. Phase 6 Microprocessor Controls ML-190HS - Manual (Page 49)

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C. PHASE 6 OPL MICROPROCESSOR CONTROLLER RELAY OUTPUT L.E.D.
(light emitting diode) INDICATORS
There are a series of five (5) L.E.D. (light emitting diode) indicators (ORANGE LIGHTS) located at the backside
are of the Phase 6 OPL microprocessor controller (computer). These are identified or labeled (from top to
bottom in the illustration below as: FAN-BLOWER, FOR-FORWARD, REV-REVERSE, AIR-AIR-JET, HT1-
HEAT OUTPUT. There are a series of seven (7) L.E.D. (light emitting diode) indicators (RED LIGHTS)
FUSE-MAIN FUSE, LINT- LINT DOOR, MAIN-MAIN DOOR, DRUM-TUMBLER (BASKET) HI-LIMIT,
SAIL-SAIL SWITCH, BURN-BURNER HI-LIMIT, FLAME-FLAME PROBE). The L.E.D. (light emitting
diode) in the center of the board (RED LIGHT) indicates power supplied to the Phase 6 OPL microprocessor
controller (computer). These L.E.D.’S (light emitting diode’s) indicate the inputs and outputs of the Phase 6 OPL
microprocessor controller (computer) as it monitors the safety circuits.