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10) Before module goes into a lock-out,
check voltage across MV and MV/
PV. If no 24V is present, replace
module. If 24V is present, replace
gas valve.
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 in-
sects.
3) Clean gas line or increase gas line
piping.
1) Refer to installation instructions re-
garding combustion air require-
ments.
2) Refer to installations instructions.
3) See yellow flame section above.
10) Defective ignition module or
defective gas valve.
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.
3)Pilot Outage.
(Standing pilot models)
4)Yellow lazy flame.
5)Sooting