United States Stove A9740N Troubleshooting, Continued, Observed Problem, Possible Cause, Remedy

TROUBLESHOOTING, CONTINUED...

OBSERVED PROBLEM	POSSIBLE CAUSE	REMEDY
ODS/Pilot lights, but flame goes out	Thermocouple connection loose at	Hand tighten until snug, then
When control knob is released.	control valve.	tighten 1/4 turn more.
(continued from page 17)	Pilot flame not touching thermocouple,	Contact local gas company.
	which allows thermocouple to cool,
	causing pilot flame to go out. This
	problem could be caused by either
	low gas pressure, or a dirty or partially
	clogged ODS/pilot.
	Thermocouple damaged.	Replace thermocouple.
	Control valve damaged.	Replace control valve.
One or both burner do not	Burner orifice is clogged.	Clean burner or replace burner
light after ODS/pilot is lit.	Burner orifice diameter is too small.	orifice.
		Replace burner orifice.
	Inlet gas pressure is too low.	Contact qualified service person.
Burner backfires during	Manifold pressure is too low.	Contact local gas company.
combustion.	Burner orifice is clogged.	Clean burner or replace burner
		orifice.
Slight smoke or odor during	Burner orifice is clogged or damaged.	Clean burner or replace burner
initial operation.	Burner is damaged.	orifice.
		Replace burner.
	Gas regulator defective.	Replace gas regulator.
Logs appear to smoke after	Vapors from paint or curing process	Problem will stop after a few hours
initial operation.	of logs.	of operation. Run the heater with
		the damper open if you have one,
		or open a window for the first few
		hours.
		Log heater is intended to be
		smokeless. Turn OFF heater and
		call qualified service person.
Heater produces a whistling	Turning control knob to HIGH (3)	Turn control knob to LOW (2)
noise when burner is lit.	position when burner is cold.	position and let warm up for a
	Air in gas line.	minute.
		Operate burner until air is removed
		from line. Have gas line checked
	Dirty or partially clogged burner	by local gas company.
		Clean burner or replace burner
	orifice.	orifice.
No gas to pilot.	LP-regulator shut down due to inlet	Verify LP tank regulator is
	pressure too high.	installed and set to 11" to 13"w.c.
		Replace regulator on heater.

WARNING

If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or pressure is low, contact your local gas supplier immediately.

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