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FIRE SUPPRESSION SYSTEM DIAGNOSTICS MESSAGES
OPEN THERMISTOR PROBE – This message indicates that the fire suppression system thermistor probe
either is not connected or is damaged. If this condition is detected, the Phase 7 non-coin microprocessor
controller (computer) will immediately enter F.S.S. DISABLED mode.
SHORTED THERMISTOR PROBE – This message indicates that the fire suppression 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 F.S.S. DISABLED mode.
DISCONNECTED WATER VALVE – This message indicates that the water valve is open or that it
is not
connected to the 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 F.S.S. DISABLED mode. Once the condition is corrected, the microprocessor controller (computer)
will continue to monitor the condition for 1 minute before exiting F.S.S. DISABLED mode.
SHORTED WATER VALVE – This message indicates that the water valve is shorted or that 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 F.S.S. DISABLED mode. Once the
condition is corrected, the microprocessor controller (computer) will continue to monitor the condition for 1
minute before exiting F.S.S. 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 signify a defective pressure switch or defective 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 F.S.S. DISABLED mode. Once the condition is corrected,
the microprocessor controller (computer) will continue to monitor the condition for 1 minute before exiting F.S.S.
DISABLED mode.
STARTING A CYCLE
WHEN COMPUTER IS IN “F.S.S. IS DISABLED” MODE
When the fire suppression system is disabled, the user can still start a cycle. However, when a cycle is started,
the microprocessor controller (computer) will display the following message: “F.S.S. IS DISABLED. PRESS
‘START’ TO CONTINUE.” This message will be displayed every time a cycle is started, until the disabling
condition has been corrected.