450370 - 2
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17
SHORTED THERMISTOR PROBE
– This message indicates
that the S.A.F.E. system thermistor probe is damaged or the
wiring is shorted. If this condition is detected, the Phase 7
non-coin microprocessor controller (computer) will immediately
enter S.A.F.E. SYSTEM DISABLED Mode.
DISCONNECTED WATER VALVE
– This indicates that the
water valve is open or that it is not connected to the Phase 7
non-coin microprocessor controller (computer). If this condition
is detected, the Phase 7 non-coin microprocessor controller
(computer) will continue to monitor the condition for a period of
5 minutes before entering S.A.F.E. SYSTEM DISABLED Mode.
Once the condition is corrected, the Phase 7 non-coin
microprocessor controller (computer) will continue to monitor
the condition for 1 minute before exiting S.A.F.E. SYSTEM
DISABLED Mode.
SHORTED WATER VALVE
– This indicates the water valve is
shorted or the wiring to the valve is shorted. If this condition is
detected, the Phase 7 non-coin microprocessor controller
(computer) will continue to monitor the condition for a period of
5 minutes before entering S.A.F.E. SYSTEM DISABLED Mode.
Once the condition is corrected, the Phase 7 non-coin
microprocessor controller (computer) will continue to monitor
the condition for 1 minute before exiting S.A.F.E. SYSTEM
DISABLED Mode.
WATER NOT CONNECTED
– This indicates that there is no
water pressure at the water valve. This will occur if water is not
connected to the dryer or if there is low water pressure in the
water line coming to the dryer. This could also be a defective
pressure switch or wiring to the pressure switch. If this condition
is detected, the Phase 7 non-coin microprocessor controller
(computer) will continue to monitor the condition for a period of
5 minutes before entering S.A.F.E. SYSTEM DISABLED Mode.
Once the condition is corrected, the Phase 7 non-coin
microprocessor controller (computer) will continue to monitor
the condition for 1 minute before exiting S.A.F.E. SYSTEM
DISABLED Mode.
I/O Board L.E.D.
INDICATORS
Inputs (Red L.E.D.)
1. ESTOP – This L.E.D. will indicate the status of the E-STOP.
If the E-STOP has been pressed, then the L.E.D. is ON.
2. GAS_V – This L.E.D. will indicate the status of the gas
valve. If the gas valve is open (ON), then the L.E.D. is
ON.
3. BRHL – This L.E.D. will indicate the status of the burner
high limit disk. If the disk is closed (temperature below
330° F [166° C]), then the L.E.D. is ON.
4. SAIL – This L.E.D. will indicate the status of the sail switch.
If the switch is closed, then the L.E.D. is ON.
5. EXHL – This L.E.D. will indicate the status of the exhaust
high limit disk. If the disk is closed (temperature below
225° F [107° C]), then the L.E.D. is ON.
6. MAIN – This L.E.D. will indicate the status of the main
door. If the door is closed, then the L.E.D. is ON.
7. LINT – This L.E.D. will indicate the status of the lint drawer.
If the drawer is closed, then the L.E.D. is ON.
8. FUSE – This L.E.D. will indicate the status of the Phase 7
non-coin microprocessor controller (computer) voltage. If
the power on button is pressed (green button light is on),
then the L.E.D. is ON.
SAIL SWITCH CLOSED FAULT
– This routine prevents the
start-up of the dryer unless the sail switch is in the open position.
If the sail switch is in the closed position prior to starting, the
Phase 7 non-coin microprocessor controller (computer) will
display “PLEASE WAIT START UP IN PROCESS” and will allow
the Phase 7 non-coin microprocessor controller (computer)
10-seconds for the sail switch to open before faulting out on a
“Sail Switch Closed Fault”. Once the dryer faults out on the
“Sail Switch Closed Fault”, the dryer will not be allowed to start.
This routine is also monitored at every start-up, including a
start-up after being in Pause Mode. If the sail switch is in the
closed position prior to starting from a Pause Mode, the Phase
7 non-coin microprocessor controller (computer) will display,
“PLEASE WAIT RESTART IN PROCESS” and allow the Phase
7 non-coin microprocessor controller (computer) 10-seconds
for the sail switch to open before faulting out on a “Sail Switch
Closed Fault”. Again, once the dryer faults out on the “Sail
Switch Closed Fault”, the dryer will not be allowed to start.
Anytime the fault occurs, there will be an audio indication and
start/restart will be prevented.
SAIL SWITCH OPEN FAULT
– If the sail switch does not close
within 8-seconds of starting or restarting a cycle, the Phase 7
non-coin microprocessor controller (computer) will display “Sail
Switch Open Fault” condition. Or, if the sail switch opens during
a cycle, the Phase 7 non-coin microprocessor controller
(computer) will immediately shut off the heat output and monitor
how long the sail switch is open for. If the sail switch is open
for more than 30-seconds, the Phase 7 non-coin
microprocessor controller (computer) will display “Sail Switch
Open Fault” condition and go into Fault Mode with a brief audio
indication. If the tumbler temperature is above 100° F (38° C),
the Phase 7 non-coin microprocessor controller (computer) will
continue to display “Open Sail Switch Fault” while the dryer
cools by running with no heat for 3 minutes or until the
temperature drops below 100° F (38° C). Once the tumbler
temperature is below 100° F (38° C), or the 3 minutes expire,
the Phase 7 non-coin microprocessor controller (computer) will
shut off all outputs and remain in Fault Mode until the dryer is
addressed.
S.A.F.E. SYSTEM ACTIVATED
– Indicates that the Phase 7
non-coin microprocessor controller (computer) has detected a
fire and is currently extinguishing the flame.
S.A.F.E. SYSTEM WAS ACTIVATED
– Indicates that the Phase
7 non-coin microprocessor controller (computer) detected a
fire and has extinguished the flame.
S.A.F.E. System Diagnostic Conditions
In the event that the Phase 7 non-coin microprocessor controller
(computer) detects a fault in the S.A.F.E. system, the Phase 7
non-coin microprocessor controller (computer) will display the
message “S.A.F.E. SYSTEM DISABLED … READY”. To find
the reason for the S.A.F.E. system disabling, press and hold
the red “STOP/CLEAR” and green “START/ENTER” keys.
Doing so will cause the Phase 7 non-coin microprocessor
controller (computer) to display one (1) of the following
diagnostic messages:
OPEN THERMISTOR PROBE
– This message indicates that
the S.A.F.E. system thermistor probe is either not connected
or is damaged. If this condition is detected, the Phase 7 non-
coin microprocessor controller (computer) will immediately enter
S.A.F.E. SYSTEM DISABLED Mode.
