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46
4. “Hot”
a. Indicates a possible overheating condition. The Phase 5 Dual Microprocessor Controller (DMC) computer
monitors the temperature in the dryer at
ALL times. If the Phase 5 DMC computer detects that the
temperature in the dryer has exceeded 170º F (77º C), it will disable
ALL the outputs (shut the dryer
down), the tone (buzzer) will sound for approximately 5-seconds and the display will read “Hot.” The
light emitting diode (L.E.D.) display will continue to read “Hot” until the temperature sensed has dropped
to 170º F (77º C) or lower and the Phase 5 DMC computer is manually reset by closing and opening the
Program Switch (PS).
B. L.E.D. DISPLAY INDICATORS (DOTS)
The L.E.D. indicator dots located at the top portion of the display (refer to the illustration on page 44) indicate
the various microprocessor controller (computer) output functions while a cycle is in progress. These dots DO
NOT necessarily mean that the outputs are functioning. They are only indicating that the function (output)
should be active (on).
1. Heat Circuit Indicator - This indicator dot is on whenever the Phase 5 DMC computer is calling for the
heating circuit to be active (on).
2. Motor Circuit Indicator -This indicator dot is on whenever a cycle is in progress.
C. PHASE 5 DMC COMPUTER RELAY OUTPUT L.E.D. INDICATORS
There are six (6) L.E.D. indicators (red lights) located on the back side area of the Phase 5 DMC computer
(refer to the illustration on page 47), which are identified or labeled “U” (upper) and “L” (lower) for the
appropriate circuit (i.e. door, motor, or heat). These L.E.D.s indicate that the outputs of the Phase 5 DMC
computer, or in the case of the door/lint drawer circuit, the inputs are functioning.
1. “dOOr” L.E.D. Indicators
a. Should be on at ALL times (even if dryer is not running) unless the main door or lint drawer is open or
there is a problem (open circuit) in either of these circuits.
NOTE: If the dryer is started (the display L.E.D. indicator dots are on) and there are no outputs (heat
and/or motor outputs L.E.D.s are off) and the appropriate “dOOr” input L.E.D. is on, the fault
is in the Phase 5 DMC computer itself.
NOTE: If the failure was elsewhere, (i.e. dryer’s door/lint drawer circuit) the display would read
“dOOr” if a keyboard (touch pad) entry was attempted. If the display L.E.D. indicators are
on, and the door L.E.D. input and motor/heat output L.E.D.s are on, and yet the motor and/or
heat is not active (on); then the problem is not the door switch circuit or the Phase 5 DMC
computer, the problem is elsewhere in the dryer.