United States Stove 9947 Trouble Shooting, Observed Problem, Possible Cause, Remedy

TROUBLE SHOOTING

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 20)	• 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	• Turn control knob to LOW position
noise when burner is lit.	position when burner is cold.	and let warm up for a minute.
		• Operate burner until air is removed
	• Air in gas line.	from line. Have gas line checked
		by local gas company.
		• Clean burner or replace burner
	• Dirty or partially clogged 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

Ifthegasqualityisbad,yourpilotmaynotstaylit,theburnersmayproducesoot andtheheatermaybackfirewhenlit. Ifthegasqualityorpressureislow,contact your local gas supplier immediately.

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