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Propane TT PS 60 E02

in Gas Heating
About 2 months ago my TT PS60 started having hard lockout on E02, not lighting. I pulled the ignitor and went ahead and serviced the boiler. The ignitor looked fine but I cleaned the electrodes with a fine file anyway. In the last couple days it's doing it again I haven't pulled the ignitor yet and I've went ahead and ordered a new ignitor. I didn't have a combustion test done yet. I installed this boiler about 2012 and never had any problems with it. Does anyone have any suggestions. Also when I reset it it will try to lite once and then always on the 2nd try it fires fine.
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Comments
Without first establishing that the combustion numbers are correct, it's a guessing game after that, not a diagnosis.
Have you checked to make sure the condensate line is clear including the collector at the bottom of the heat exchanger?
You can choose to do what you want, but you cannot choose the consequences.
I went to the TT school in 2010.
Albert Einstein
Have you cleaned the burner side of the H/E?
How is the light off? rough? delayed?
How does the venturi look? any black dust inside?
D
You can choose to do what you want, but you cannot choose the consequences.