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1) Adjust inlet gas pressure as
shown on rating plate.
2) Clean pilot orifice.
3) Replace thermocouple.
1) Adjust manifold pressure as
shown on rating plate.
2) Clean burners free of debris or
insects.
3) Clean gas line or increase gas line
piping.
1) Refer to installation instructions
regarding combustion air
requirements.
2) Refer to installations instructions.
3) See yellow flame section above.
3)Pilot Outage.
(Standing pilot models)
4)Yellow lazy flame.
5)Sooting
1) Too low or too high gas
pressures.
2) Restricted pilot.
3) Weak thermocouple.
1) Too low gas pressure.
2) Restricted burner intake ports.
3) Restricted gas line.
1) Insufficient combustion air.
2) Improper venting.
3) Severe yellow burner flames.