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Page 21
SYMPTOM
POSSIBLE CAUSES
TROUBLESHOOTING CHART ( FOR QUALIFIED SERVICE TECHNICIAN ) -
MAIN BURNER
1. Too much primary air.
2. Noisy pilot.
3. Burr in orifice
(if it whistles or resonates).
4. Excessive gas input.
1. Blocked venting.
2. Insufficient primary air.
1. Main gas off.
2. Defective gas valve.
Noisy
Flame
Floating
Flame
Failure to
Ignite
CORRECTIVE ACTION
Flame Too
Large
1. Defective operator section
of gas valve.
2. Burner orifice too large.
3. If installed above 2,000 ft.
1. Replace complete valve.
2. Check with local gas company for proper orifice size & replace.
3. Refer to orifice chart,
Page 5.
1. Too much primary air.
Flame Pops
Back
1. Adjust air shutter.
(See Page 14).
1. Adjust air shutter.
(See Page 14).
2. Reduce pilot gas with adjusting screw on combination gas
control valve.
3. Remove burr or replace orifice
(Do not enlarge orifices).
4. See “Flame Too Large” above.
1. Too little primary air.
2. Clogged main burner ports.
3. Clogged draft hood.
4. Linted up air shutter.
Yellow
Tip Flame
(Some yellow
tipping on Propane
gas is permissible)
1. Adjust air shutter.
(See Page 14).
2. Clean main burner ports. (Do not enlarge ports).
3. Clean draft hood.
4. Check for dust or lint at air mixer opening & around the shutter. Clean as necessary.
1. Clean flue passageways to remove blockage.
2. Adjust air shutter to increase primary air supply.
(See Page 14).
1. Gas leak.
2. Chimney or flue obstruction.
3. Drafts around appliance.
Gas
Odor
1. Shut off gas service immediately. Check piping. Call gas company.
(See Page 1).
2. Clean flue.
3. Eliminate drafts.
1. Open all manual gas valves.
2. Replace gas valve.
1. Pilot flame too small.
2. Burner ports clogged near pilot.
3. Low gas pressure.
4. Pilot decreases in size when main
burners come on.
5. Air shutter open too far.
6. Drafts around appliance.
7. Bad venting.
Delayed
Ignition
1. Check pilot orifice, increase pilot gas flow if necessary by adjusting inlet pressure.
2. Clean burner ports
(Do not enlarge ports).
3. Check gas supply pressure.
4. Supply piping is inadequately sized. Consult local gas utility or competent installer.
5. Close air shutter to proper setting as outlined in these instructions
(slight yellow tipping is
allowable on Propane Gas).
(See Page 14).
6. Eliminate drafts.
7. See “Venting”.
Please follow the following corrective actions in order.
Condensation
of Water Vapor
1. Improper venting.
1. See “Venting”.
1. Defective or sticking
automatic valve.
2. Excessive gas pressure
(The supply gas pressure must not
exceed 1/2 psi or 14” water column).
Burner Won’t
Turn Off
1. Clean or replace valve.
2. To correct this situation contact the utility supplying the gas.
