Wing Enterprises IOMWDF-1 specifications Valve does not open, replace

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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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Contents IOMWDF-1 Section II General Information Section I ForwardSection III Installation Location of AccessoriesLocating the Unit Locating Temperature Controls Field Wiring and Remote Control InstallationElectrical Connections Field PipingPre Start-Up Suggested Tools and Instruments Section IV PRE START-UPSetting Main Flame Setting BurnerSafety Controls Check Section V Unit START-UPSuggested Control Settings Section VI Unit ShutdownExtended Shutdown Emergency Shutdown only System without Pilot Symptom Cause Remedy Section VII TroubleshootingValve does not open, replace 001004 001003 Troubleshooting Guide Series 14 Discharge Temperature ControlSymptom Possible Cause Field Test Remedy Fire Electronics Remote Temperature Consult factory for other Series 44 Room Temperature Control Series 44 Room Temperature Control Check Safety Shutdown Performance Maintenance Schedule Speed Temperature Cleanliness Interval Lubrication Instructions Manufacturer Bearing TypeAir Filters 4.6 Belt Tension and Adjustment8.6 GasketsSection IX Maxon NP-I Airlo Burners Inspection and Maintenance of Gas PortsHigh Fire Manifold Adjustments Low Fire or Bypass AdjustmentsMR212 Valve Section Preliminary Circuit Analysis SystemSection XI Replacement Parts Section XII Recirculation For Canadian Installations only