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I have a 3yr old Biasi B10-4 w a F3-40. Has run great till now. The flame drops and then it restarts does this a few times and locks out. Upon reset it acts the same. It finally proves and stays running. I’ve set the pump pressure to 170psi and have a .60 60*W nozzle. I’ve changed the oil line, have a spin on oil filter. I changed the solenoid thinking that will be the easy fix. No. Changed the control and it worked for a few months but it’s back. Thoughts?
Mount Pleasant Plumbing and Heating Inc