Long story short, the pilot burner is the flame sensor also. The spark wire also sends another signal and when there is flame present the IID device can sense flame and proceed with the ignition process.
Long story short, the pilot burner is the flame sensor also. The spark wire also sends another signal and when there is flame present the IID device can sense flame and proceed with the ignition process.
Thanks for the reply. I'm guessing the pilot senses a pressure drop when the pilot is lit. I replaced the pilot burner tip assembly, which included a new ignitor, and the pilot tubing (I broke mine trying to remove it because it was corroded at each end) and it is working now. I'm glad that was all it needed.
gunite pool with DE filter
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