0
Owner's of the ADC Clothes Dryer AD-464 gave it a score of 0 out of 5. Here's how the scores stacked up:
54
b. L.E.D. (Light Emitting Diode) and Neon Displays of the BCM (Burner Controller Module)
1) Operating Interlock - L.E.D. is lit when;
ALL safety interlock switches are closed, applying a 110 VAC signal to terminal #7 of the burner
controller module (BCM).
2) Operating Interlock - L.E.D. is not lit when;
One (1) or more safety interlock switches (burner doors, load door, optional unload door, gas pressure,
lint pressure, hi-temp alarm contacts, tumbler [basket] stopped, and lint drawer) are open. If any of
the safety interlocks switches are open the burner ignition sequence will not be attempted.
3) Air Failure - L.E.D. is lit if;
• Burner fan air switch is not closed within 10 seconds of start-up of blower
• Burner fan air switch is open during firing cycle.
4) System Unsafe - L.E.D. is lit if;
• A loose connection on the flame rod or spark plug.
•
ALL purge time dip switches are in the off position.
• Flame is detected out of sequence.
• Inductance is detected on sensor wires.
• Wiring fault on terminals #3, #4, and #5.
• An internal controller failure.
• Air switch closed before start-up.
5) Flame Signal - L.E.D. is lit when;
• The flame rod is in contact with the pilot flame and the burner controller module (BCM) converts
a microampere (microamp) current between the flame rod and ground into a three (3) 11 volt DC
signal that can be measured on the BCM. Inset one (1) probe of a DC volt Meter into the flame
signal port and put the other probe to ground. The meter will read out the three (3) 11 volt DC
flame signal. If the flame signal L.E.D. (light emitting diode) flickers on and off, this is a result of
a weak flame signal which can be caused by an intermittent wiring connection between the flame
rod and BCM, a faulty ground connection, bad ground of the dryer, weak pilot flame or dirty or
defective flame rod.
6) Burner Controller Power On Indicator - Neon is lit when;
• Burner Controller has its supply voltage of 120 VAC.
7) Burner for Air Switch Status Indicator - Neon is lit when:
• Air switch is closed after start-up of blower (fan) and interlocks are ALL closed.
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