Wing Enterprises IOMWDF-1 Section Vii - Troubleshooting, System without Pilot continued, Symptom

SECTION VII – TROUBLESHOOTING

System without Pilot continued

Symptom		Cause		Remedy
C. continued	9.	Defective gas valve or actuator.	9.	Check power to gas valves. If gas
				pressure matches unit rating plate
				and valve does not open, replace
				gas valve or actuator.
	10.	Defective spark rod or out of	10.	Make sure spark rod is producing
		position. (see spark rod diagram		a sufficient spark to light off
		#P-001004)		burner, make sure porcelain is
				not cracked. Check wiring or
				replace if necessary.
	11.	Flame rod not sensing flame. (see	11.	Make sure flame rod is in flame.
		spark rod diagram #P-001003)		Make sure porcelain is not
				cracked. Check wiring or replace
				if necessary.
	12.	Defective regulator.	12.	Clean or replace regulator.
	13.	Blocked vent lines or vent	13.	Check vent lines or replace vent
		limiters.		limiters.
	14.	Low fire set too low or too high.	14.	Adjust setting on modulating valve
				or gas valve.
D. Burner will not respond to tem-	1.	For Maxitrol system.	1.	See following troubleshooting
perature.				guide for Maxitrol series 14 & 44.
	2.	For Honeywell system.	2.	See following troubleshooting
				guide for Honeywell series.

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