2nd Ave 7800 Series installation instructions This fault indicates Remove power to the device

			7800 SERIES RELAY MODULES
	Table 3. Hold and Fault Message Summary (continued).
Fault Code	System Failure		Recommended Troubleshooting
Fault 45	Low Fire Interlock switch failure	1.	Check wiring; correct any errors.
*Low Fire Sw. Off*	to close or stay closed.	2.	Reset and sequence the relay module.
		3.	Use either the manual motor position to drive the motor to
			the Low Fire position, or use the Run/Test Switch option, if
			available. Sequence to Run, drive to Low Fire and place in
			the Test position. Adjust the Low Fire Switch while in this
			state to make sure it is closing properly.
		4.	While in Run, drive to Low Fire state, measure the voltage
			between terminal 18 and G (ground). Line voltage should
			be present. If not, the switch adjustment is incorrect
			and/or the switch is defective and needs replacement.
		5.	If steps 1 through 4 are correct and the fault still persists,
			replace the relay module.
Fault 46	This fault indicates:	1.	Remove power to the device.
*Flame Amp Type*	a. The Flame Failure Response	2.	Reseat the flame amplifier and reset and sequence the relay
	Time (FFRT) or TYPE input		module.
	from the amplifier changed	3.	For EC/RM7890 only; make sure that Jumper JR2 is
	while the device was		completely clipped if a three-second FFRT amplifier is
	powered; or		being used. If Jumper JR2 is intact (relight option is
	b. A standard amplifier was		selected), use 0.8 second FFRT amplifier.
	used in a pilot valve	4.	For RM7838B only; make sure that a Shutter Check Flame
	application; or		Amplifier is being used with the Pilot Valve Hold option
	c. A three-second FFRT		selected.
	Amplifier was used with the
	relight option on the
	RM7890 Relay Module.
Fault 47	The configuration jumpers differ	1.	Inspect the jumper connections. Make sure that clipped
*Jumpers Changed*	from the sample taken at startup.		jumpers are completely removed.
		2.	Reset and sequence the relay module.
		3.	If fault persists, replace the relay module.
Fault 48	V2S valve terminal, used as a		WARNING
*Delayed MV On*	delayed main valve, was on when
	it should be off.		Explosion Hazard.
			Can cause explosion, serious injury or death.
			1. Remove system power, turn off fuel supply.
			2. Check wiring; correct any errors.
			3. Inspect the V2S Fuel Valve and its connections.
			Make sure the switch is working correctly and is not
			jumpered or welded.
			4. Reset and sequence the relay module.
			5. If fault persists, replace the relay module.
Fault 49	The manual open switch was on		WARNING
*Man-Open Sw. On.*	when it should be off.
			Explosion Hazard.
			Can cause explosion, serious injury or death.
			1. Remove system power, turn off fuel supply.
			2. Check wiring; correct any errors.
			3. Inspect the Manual-Open Switch and its
			connections. Make sure the switch is working
			correctly and is not jumpered or welded.
			4. Reset and sequence the relay module.
			5. If fault persists, replace the relay module.
Fault 50	The sequence logic detected a	1.	Inspect the jumpers and refer to the installation instructions
*Jumpers Wrong*	combination of jumpers that is		for compatible jumper configurations.
	illegal for the sequence eg, if it is	2.	Make sure that clipped jumpers are completely removed.
	correct to clip Jumper JR1 or	3.	Reset and sequence the relay module.
	Jumper JR2, but not both, this	4.	If fault persists, replace the relay module.
	fault would be used when both
	are clipped (RM7888 only).
			(continued)

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