Adams Condensing Oil-Fired Furnace operation manual System and General Troubleshooting

Table 1	System and General Troubleshooting
PROBLEM	POSSIBLE CAUSE	REMEDY
	Electrodes out of adjustment or defective.	Check etectrode settings. Check electrodes for dirt build-up or cracks in porcelain.
	Poor transformer high voltage connections	Check contacts between the igniter and electrodes. If OK, replace the Igniter.
Oilbumer	or defective transformer.
	Fuel oil filter cloaaed.	Replace fuel oil storage tank filter and/or fuel oil in-line filter.
sputtering at
nozzle	Defective 011 pump.	Check burner motor/fuel oil pump coupling. Check oil pump pressure. Replace fuel oil
		pump if necessary.
	Fuel oil line partially clogged or contains	Bleed air from oil line.
	air.	If Dl'obIem persists, replace oliline.
	System temperature rise too high.	"Refer to start up procedure for correct temperature rise. Check for clogged air filters.
		Check blower fan for excess dirt build-up or debris. Speed up blower fan if necessary.
	Poor "fan off' delay timing selection, (fan	Check "fan off' delay timing setting for a delay off between 390 and 600 seconds.
Check stack	stoes too soon) Fan controi timer.
temperature.	Fuel 011 leak.	Check fuel 011 line for leaks. Repair or replace if necessary.
	Stack temperature too high.	Check stack temperature. Stack temperatures will normally range from 20-42 degrees
		above ambient.
	Thermostat Improperly adjusted or in poor	Check thermostat heat anticipator setting against measured amperage draw. Increase
	location.	heat anticipator setting if necessary. If the thermostat is being influenced by drafts,
		sunlight duct work etc. relocate to more suitable location.
More than (0)	Insufficient combustion air at oil burner	Adjust oil burner combustion air to gain the highest C02 or lowest practical 02 content
		In the flue gas (see Burner Set Up).
smoke
	Heat exchanaer oartiallv blocked	Check for soot build UP In turbulators of secondary heat exchanaer
	Poor alignment of between oil burner blast	Check alignment. Blast tube should be centered with fire pot burner opening. Oil burner
Soot build up on	tube and fire pot.	head should be % Inch back from the inside surface of the fire pot.
the blast tube	Flame impingement caused by incorrect
(end coning).	nozzle angle.	Check noZ'ZIe size and anale. Check distance from head to inside surface of the fire pet.
	Defective fire DOt.	Check fire DOt. Reoair or reolace.
	Airflow blocked or dirty air filter.	Clean or replace air filter.
		Check thermostat heat anticipator setting against measured amperage draw. Increase
	Thermostat adjustments or location.	heat anticipator setting if necessary. If the thermostat is being influenced by drafts,
		sunlight, duct work, etc., relocate to more suitable location.
	Insufficient airflow.	Check all dampers. Open closed dampers including registers in unused rooms. Check
Furnace will not		system temperature rise. If temperature rise is too high, speed up blower fan.
wannhometo
desired	Defective high limit control.	Test high limit function of all limit switches. Use a duct thermometer to assess accuracy
temperature.		of limit control. Check for obstructions to airflow around limit switch bi-metal elements.
		Replace control if necessary. NOTE: A. high limit Is auto-reset. B. Auxiliary limit is
		manual re-6et.
	Under-sized nozzle.	Check nozzle. If problem is not caused by air flow problems, use larger nozzle, If
		permitted by rating Dlate.
	Blower fan motor stopping intermittently	Check blower fan motor amperage draw. Check motor ventilation ports, clean if
	on overload	necessary. Reolace motor if necessary.
	Burner motor stopping intermittently on	Check burner motor. Replace if necessary
	overload.

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