If pilot or low-fire flame occurs in a boiler which one would NOT be the possible cause?

If pilot or low-fire flame occurs in a boiler which one would NOT be the possible cause?

If pilot or low-fire flame occurs in a boiler which one would NOT be the possible cause?



a. Low fire switch open.
b. Insufficient pilot or low fire flame.
c. Supply to main nozzles restricted or cut off.
d. Inoperative programmer.




Answer: A


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