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Blower Motor Circuit Indicator – Indicator dot is on whenever
a cycle is in progress.
Heat Controller Indicator – Indicator dot is on whenever the
Phase 5 microprocessor controller (computer) is calling for
the heating circuit to be active (on).
Phase 5 Microprocessor Controller
(Computer) Relay Output L.E.D. Indicators
There are three L.E.D. indicators (red lights) located at the
back side area of the Phase 5 microprocessor controller
(computer). These are identified or labeled in the illustration
as “HEAT,” “MTR” (motor), and “DOOR.” These L.E.D.s
indicate that the outputs of the Phase 5 microprocessor
controller (computer), or, in the case of the door switch input,
are functioning.
IMPORTANT: The Phase 5 microprocessor controller
(computer) has its own internal heat sensing circuit fuse
protection located on the back side of the Phase 5
computer. If a “dSFL” condition occurs, check to see if this
fuse has blown. If it has not, do not replace the entire
Phase 5 microprocessor controller (computer), replace the
fuse and do so with a 1/8-amp (Slo-Blo) fuse only.
NOTE: Once the Phase 5 microprocessor controller
(computer) detects a problem in the heat circuit, it updates
every 30-seconds. If the problem was a loose connection
in this circuit which corrected itself, the “dSFL” condition
would automatically be cancelled.
“SEFL” – Indicates rotational sensor circuit failure meaning
that there is a fault somewhere in the tumbler rotation
detection circuit, or the Phase 5 microprocessor controller
(computer) program related to this circuit is set incorrectly in
the active mode (SEn) where the dryer is not equipped with
the optional rotational sensor and should be set in the
nonactive mode (nSEn).
“Hot” – Indicates a possible overheating condition. The Phase
5 microprocessor controller (computer) monitors the
temperature in the dryer at all times. If the microprocessor
controller (computer) detects that the temperature in the dryer
has exceeded 220° F (104° C), it will disable all outputs (shut
the dryer down), the tone (bUZ) will sound for approximately
5-seconds, and the L.E.D. display will read “Hot” until the
temperature has dropped to 220° F (104° C) or lower.
L.E.D. Display Indicators
The L.E.D. indicator dots located at the top portion of the
L.E.D. display (as shown in the illustration below) indicate
the Phase 5 microprocessor controller (computer) output
functions while a cycle is in progress. These indicator dots
do not necessarily mean that the outputs are functioning.
They are only indicating that the function (output) should be
active (on).
“DOOR” L.E.D. Indicator
SHOULD BE ON ALL THE TIME (even if the dryer is not
running) unless the main door or lint drawer is open or there
is a problem (open circuit) in the door switch circuit.
NOTE: If the dryer is started (display indicator dots are on)
and there are no outputs (“HEAT” and/or “MTR” output
L.E.D.s are off) and the “DOOR” input L.E.D. is on; then
the fault is the Phase 5 microprocessor controller
(computer) itself.
If the failure was elsewhere (i.e., the dryer’s door switch
circuit), the L.E.D. display would read “door” if a keypad entry
was attempted.
If the display indicator dots are on, and the “DOOR” L.E.D.
input and the motor/heat output L.E.D.s are on, yet the motor
and/or heat is not active (on); then the problem is elsewhere
in the dryer.
“HEAT” Output L.E.D. Indicator
If the dryer is started and there is NO “HEAT,” yet the Phase
5 microprocessor controller (computer) display heat circuit
indicator dot is on, but the “HEAT” output L.E.D indicator is
off; then the fault is the Phase 5 microprocessor controller
(computer) itself.
If both the display indicator dot and the “HEAT” output L.E.D.
indicator dot are on; then the problem (fault) is elsewhere
(i.e., external to the Phase 5 microprocessor controller
[computer]).
“MTR” Output L.E.D. Indicator
If the dryer is started and the blower (impellor/fan) motor is
not operating, yet both the Phase 5 microprocessor controller
(computer) display blower (impellor/fan) motor indicator dot
and “DOOR” input L.E.D. indicator dot is off; then the fault is
the Phase 5 microprocessor controller (computer) itself.
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