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Remodeling Contractor
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3,590 Posts
Discussion Starter · #1 ·
What is the most likely control causing an oil burner's reset to trip. Already had boiler cleaned. Filters are new, old was clean. New nozzle installed. So I think fuel is not the problem. But I can have a good flame and suddenly it just trips and goes off. Will not stay running without occasionally tripping. Boiler service man was here twice and cannot find the problem.
 

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Hvac Pro
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23,688 Posts
Cad cell (fire eye) not seeing the flame properly, dirty or weak cell, improperly positioned cell are a couple possibilities.
 
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