2nd Ave 7800 Series installation instructions Hold and Fault Message Summary, Prepurge

			7800 SERIES RELAY MODULES
	Table 3. Hold and Fault Message Summary (continued).
Fault Code	System Failure		Recommended Troubleshooting
Fault 11	Running Interlock powered at	1.	Check wiring to make sure that interlocks are connected
*Running ILK On*	improper sequence point.		properly between terminals 6 and 7. Correct any errors.
		2.	Reset and sequence the relay module.
		3.	If the fault persists, measure the voltage between terminals 6
			and G (ground), then terminals 7 and G. If there is line supply
			voltage present at terminal 6 when the controller is off, the
			controller switch may be bad or is jumpered.
Fault 12	Lockout Interlock powered at	4.	If steps 1 through 3 are correct and there is line supply
*Lockout ILK On*	improper point in sequence.		voltage present at terminal 7 when the controller is closed
			and the fault persists, check for a welded or jumpered
			Running Interlock, Lockout Interlock, or Airflow Switch.
			Correct any errors.
Fault 13	Combustion airflow interlock	5.	If steps 1 through 4 are correct and the fault persists, replace
*Airflow Sw. On*	fault during STANDBY.		the relay module.
Fault 14	High Fire Interlock Switch	1.	Check wiring and correct any errors.
*High Fire Sw.*	failure to close during	2.	Reset and sequence the relay module.
	PREPURGE.	3.	Use either the manual motor potentiometer to drive the motor
			to the High Fire position or use the Run/Test Switch option,
			if available. Sequence to Prepurge drive to High Fire and
			place in the Test position. Adjust the High Fire Switch while
			in this state to make sure that it closes properly.
		4.	Measure the voltage between terminal 19 and G (ground)
			while in the Prepurge drive to High Fire state. Line supply
			voltage should be present. If not, the switch adjustment is
			incorrect and/or the switch is defective and needs replacing.
		5.	Reset and sequence the relay module. If line supply voltage
			was present between the High Fire Switch and terminal 19,
			and the fault still persists, replace the relay module.
Fault 15	Flame sensed when no flame	1.	Check that the flame is not present in the combustion
*Flame Detected*	is expected during		chamber; correct any errors.
	STANDBY.	2.	Make sure that the flame amplifier and flame detector are
			compatible.
		3.	Check wiring and correct any errors.
		4.	Remove the flame amplifier and inspect the connections.
			Reseat the amplifier.
		5.	Reset and sequence the relay module.
		6.	If the code reappears, replace the amplifier and/or the flame
			detector.
		7.	If the fault persists, replace the relay module.
Fault 16	No-flame detected during	1.	Measure the flame signal. If one exists, make sure it meet
*Flame-Out Timer*	Pilot Flame Establishing		specifications. Make any necessary burner adjustments using
	Period.		manufacturer instructions.
		2.	Make sure that the flame amplifier and flame detector are
			compatible.
		3.	If the code reappears, replace the amplifier and/or the flame
			detector.
		4.	If the fault persists, replace the relay module.
Fault 17	Main flame failure during RUN	1.	Inspect the main fuel valve(s) and connection(s).
*Main Flame Fail*	after flame is established and	2.	Make sure that the fuel pressure is high enough to supply
	on for at least 10 seconds.		fuel to the combustion chamber.
		3.	Check the flame detector sighting for adequate flame signal
			throughout the burner firing rate.
			(continued)

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