Nortec Industries GS Series manual Fault List

FAULT LIST

FAULT	GIF-X	Following an ignition module fault if the	-Ensure that the ignition module is not
GAS RE-IGNITION		modules gas valve activates this fault will be	miswired or that the module is not
BURNER X		generated.	faulty by swapping it with a known
			good one. If the problem follows the
			ignition module, replace the module
			-Consult factory
FAULT	DBF	There are many time windows in the GS	-Ensure that pump is being energized
DRAIN NOT		software. If, during a drain cycle, the time	-Check for blockage in all aspects of
WORKING		window for the water level to drop is exceeded,	the drain system
DRAIN IS BLOCKED		this fault is generated	-Float board defective
			-Consult factory
FAULT	FCF	Once every 24 hours (provided the unit is	-Ensure the proper operation of the fill
FLOAT CHECK		powered and in an operating or standby	valve and drain valve via the
		condition) the controller will test the water	diagnostics screen
		level detection circuit. If the test fails this fault	-Float board is defective
		is displayed	-Consult factory
FAULT	WLF	If the controller detects two or more float level	-Miswired float board
ILLEGAL FLOAT		readings, which are not expected (ex. Switch 1	-Defective float board
COMBINATION		and 3 ON or switch 1, 2, and 3 ON) this fault	-Consult factory
		will be recorded.
FAULT	FDF	The controller monitors the water level as it	-Float board defective
FILL VAVLE ON		fills and drains. It expects to see the levels	-Contact agent for replacement float
DETECTION		increase logically (1-2-3-4-5). If the water level	board
INCONSISTENT		increases and jumps a step (1-2-4-5) this fault
		will be generated. The same holds for water
		level decreasing.
FAULT	KWF	During a keep warn cycle, if the tank	-Ensure that the tank temperature
KEEP WARM TIME		temperature sensor does not open within a	sensor is connected
OUT		certain time window, this fault is generated.	-Defective tank temperature switch
TOO LONG TO			-Contact agent for replacement switch.
HEAT
FAULT	OTF	If input TB5, # 4 on the logic board goes low	-Do not operate and consult the factory
STACK OVER		(no 24 Vac detected) this fault will be
TEMP.		generated. This could indicate either the tank
SWITCH TRIPPED		over temperature switch has opened or the
		stack over temperature switch has opened.
FAULT	HMF	In the user menu the user sets the maintenance	-Perform tank cleaning and all other
MAINTENANCE		time. Once this time expires a warning is	maintenance requirements outlined in
TIME		displayed. 72 hours later the warning changes	the manual.
HAS ELAPSED		to this fault. The maintenance time is measured
		in weighted operational hours.
		With switch 5, #4 deactivated, this fault is
		enabled
FAULT	FTF	Fill time-out fault during fill process. The GS	-Verify water supply is open
WATER FILL FAIL		software monitors the changes in water level	-Verify adequate water supply to unit
		during filling sequence. If ware level changes	(30-80psi, 10L/min, minimum ½” dia.
		do not occur within an expected time interval,	Line size)
		this fault will be generated.	-Verify wire harness and connection
			between float chamber and I/O board
			(TB)

- 61 -