Louisville Tin and Stove BBT103 Trouble Shooting Chart, Symptom Possible Causes Corrective Action

TROUBLE SHOOTING CHART

SYMPTOM	POSSIBLE CAUSES			CORRECTIVE ACTION
Flame too large	1. Defective operator section of valve.		1. Replace valve.
	2.	Burner orifice too large.	2. Check with local gas company for proper
				orifice size and replace.
	3.	If installed above 2,000 ft.	3. See burne orifice section, Page 12.
Yellow burner flame	1. Clogged burner ports.		1.	Remove burners and check for
				obstructions in throats, ports, and
				orifices. Clean - but do not enlarge ports
				or orifices.
	2.	Obstruction around vent cap.	2.	Make sure area around vent cap is clear,
				be sure vent system is sealed.
Gas odor	1. Gas leak.		1.	See Page 1.
Delayed Ignition	1. Low gas pressure.		1.	Check gas supply pressure.
	2.	Igniter not properly located.	2.	Check ignitor location and correct if
				necessary.
Failure to ignite	1. Main gas off.		1.	Open all manual gas valves.
	2.	Thermostat not set high enough to call	2.	Set thermostat to higher temperature.
		for heat.
	3.	Clogged burner orifice.	3. Clean burner orifice (do not enlarge).
	4.	Incorrect wiring.	4.	Check wiring diagram.
	5.	Defective valve.	5.	Replace valve.
	6.	No power to unit.	6.	Check power supply.
	7.	Defective pressure switch.	7.	Replace pressure switch.
Burner won’t turn off	1. Defective or damaged thermostat wire,		1.	Cean be checked by removing wire from
		or thermostat.		control board terminal. If burner goes off,
				replace thermostat.
	2.	Thermostat location.	2.	Re-locate thermostat out of drafts, hot, or
				cold spots.
	3.	Defective or sticking valve.	3. Replace valve.
	4.	Excessive gas pressure.	4.	Contact utility supplying gas.
	5.	Defective or damaged thermostat.	5.	Replace thermostat.
Incorrect gas input	1. Gas input not checked.		1.	Re-check gas input.
	2.	Clogged orifice.	2. Clean orifices with a smooth wood
				toothpick, do not enlarge.
Not enough heat	1. Furnace undersized.		1.	This is especially true when a dwelling
				or room is enlarged. Have the heat loss
				calculated and compare to furnace
				output. Your gas company can supply
				you with this information. If furnace is
				undersized, replace with correct size unit,
				or add up to two more heaters.
	2.	Temperature dial set too low.	2.	Raise temperature setting.
	3.	Incorrect supply pressure.	3.	Check supply pressure.
Too much heat	1. Temperature dial set too high.		1.	Lower temperature setting.
	2.	Combination control valve stuck open.	2.	Replace combination control valve.
Main burner goes out	1. Defective flame sensor.		1. Check voltage and replace if low.
during normal operation	2.	Input too high.	2.	Check input rate.
	3.	Cover around pilot lighter hole not air	3.	Tighten screws securing sight glass.
		tight.		Check and replace gasket if needed.
	4.	Vent tubes not properly installed or	4.	Follow instructions. Check both
		sealed.		exhaust and air intake tubes, and vent
				cap. Be sure all gaskets are in place and
				properly sealed. Use only tubes and
				vent cap supplied. Do not alter vent
				tubes or cap. Check wall thickness and
				tube lengths.
	5.	Limit switch opens.	5. Check rate - remove any obstructions to
				circulating air.
	6.	Exhaust or air intake tubes blocked.	6.	Remove obstruction. Check for snow.

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