2nd Ave 7800 Series Running on slow ac Reset and sequence the relay module

7800 SERIES RELAY MODULES

Table 3. Hold and Fault Message Summary.

Fault Code	System Failure		Recommended Troubleshooting
Fault 1	No card is plugged into the	1.	Make sure the purge card is seated properly.
*No Purge Card*	purge card slot.	2.	Inspect the purge card and connector on the relay module for
			damage or contaminants.
		3.	Reset and sequence the relay module.
		4.	If the fault code reappears, replace the purge card.
		5.	Reset and sequence the relay module.
		6.	If the fault persists, replace the relay module.
Fault 2	Excess noise or device	1.	Check the relay module and display module connections.
*AC Frequen/Noise*	running on slow ac.	2.	Reset and sequence the relay module.
Fault 3	Ac line dropout detected.	3.	Check the relay module power supply and make sure that both
*AC Line Dropout*			frequency and voltage meet the specifications.
Fault 4	Device running on fast ac.	4.	Check the backup power supply, as appropriate.
*AC Frequency*
Fault 5	Low ac line detected.
*Low Line Voltage*
Fault 6	Purge card timing changed	1.	Make sure the purge card is seated properly.
*Purge Card Error*	since card was initially read.	2.	Inspect the purge card and connector on the relay module for
			damage or contaminants.
		3.	Reset and sequence the relay module.
		4.	If the fault code reappears, replace the purge card.
		5.	Reset and sequence the relay module.
		6.	If the fault persists, replace the relay module.
Fault 7	Flame sensed when flame	1.	Check wiring and correct any errors. Make sure that flame
*Flame Amplifier*	not present.		sensor wires are in separate conduits. Check for noise
			coupling into the flame detector leadwires.
		2.	Make sure that flame detector and flame amplifier are
			compatible.
		3.	Remove the flame amplifier and inspect connections. Reseat
			the amplifier.
		4.	Reset and sequence the relay module.
		5.	If the code reappears, replace the amplifier and/or the flame
			detector.
Fault 8	Flame sensed when no	6.	If the fault persists, replace the relay module.
*Flame Amp/Shutr*	signal expected during
	shutter-check or Ampli-
	Check™ versions.
Fault 9	Flame sensed when shutter	1.	Check that flame is not present in the combustion chamber;
*Flame Detected*	open and no flame is		correct any errors.
	expected during STANDBY.	2. Check wiring and correct any errors. Make sure that flame
			sensor wires are in separate conduits. Check for noise
			coupling into flame detector leadwires.
		3.	Remove the flame amplifier and inspect its connections.
			Reseat the amplifier.
		4.	Reset and sequence the relay module.
		5.	If the code reappears, replace the amplifier and/or the flame
			detector.
		6.	If the fault persists, replace the relay module.
Fault 10	Preignition Interlock fault	1.	Check wiring and correct any errors.
*Preignition ILK*	during STANDBY	2.	Check Preignition Interlock switches to assure proper
	*EC/RM7800, 7840, 7838B		functioning.
	only).	3.	Check fuel valve operation.
		4.	Reset and sequence the relay module; monitor the Preignition
			Interlock status.
		5.	If the code persists, replace the relay module.

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