1018029-E Page 20
TROUBLESHOOTING CHART ( FOR QUALIFIED SERVICE TECHNICIAN ) - MAIN BURNER
Please follow the following corrective actions in order.
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
Flame Too
Large
1. Defective operator section of gas
valve.
3. If installed above 2,000 ft.
1. Noisy pilot.
(If it whistles or resonates).
3. Excessive gas input.
Noisy Flame
(do not enlarge orices).
1. Clogged main burner ports.
2. Clogged draft hood.
3. Linted up mixer opening.
Yellow Tip Flame
(Some yellow
tipping on Propane
gas is permissible).
1. Clean main burner ports. (Do not enlarge ports).
2. Clean draft hood.
3. Check for dust or lint at air mixer opening.
1. Blocked venting.
Floating
Flame
1. Gas leak.
3. Drafts around appliance.
Gas
Odor
3. Eliminate drafts.
2. Burner ports clogged near pilot.
burners come on.
5. Drafts around appliance.
Delayed
Ignition
gas source (meter if natural gas or second stage regulator if propane - maximum 7” w.c.
for Natural and 11” w.c. for propane).
2. Clean burner ports (do not enlarge ports).
3. Check gas supply inlet pressure. Check gas outlet (manifold)
(for “step” pressure chart see “Operation”).
4. Supply piping inadequately sized or incorrect inlet pressure.
5. Eliminate drafts.
1. Gas input not checked.
Incorrect
Gas Input
toothpick. (Do not in any way enlarge or distort it).
2. Defective gas valve.
Failure to
Ignite
1. Open all manual gas valves.
1. Appliance undersized.
2. Incorrect supply pressure.
Not Enough
Heat
and compare to the appliance output (approx. 70% of input). Your gas company or
correct size unit.
2. Check supply pressure as outlined above.
1. Defective or sticking automatic valve.
2. Excessive gas pressure
(The supply gas pressure must not
exceed 1/2 PSI or 14” W.C.)
Burner Won’t
Turn O
2. To correct this situation contact the utility supplying the gas.
1. Improper venting. Condensation of
Water Vapor
1. Combination control valve
sticks open.
Too Much
Heat
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