Louisville Tin and Stove BBT104 - Manual (Page 21)

Page 21
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.