I need some help getting my boiler fired up. It has a Beckett AF burner. It worked fine last week. I then ran completely out of oil. I got more oil. I purged the lines. But now it wont stay burning. It’ll burn for about 2 to 20 seconds, then flames out, but the motor continues to run, then it sometimes relights for a few seconds, eventually it times out and trips off. I’ve tried everything I can think of the last few days.
Changed the filter.
Purged the line many times.
Cleaned the nozzle and supply tubes(with cyclo)
Adjusted the electrodes
Checked the pump by allowing it to pump into a coffee can until it tripped off, it almost filled the 1lb can in the 45 seconds, also to check for water or crap in oil, which there was none.
Tested photo cell, resistance within range.
Tested transformer by swapping in a good one.
Theres a solenoid on the gun body that the feed line runs into. It clicks on and off when the flame starts and stops, but I can’t tell if its causing it or reacting to it.
I dont know what else to check. Is there something that would get damaged by it trying to run when it was out of oil? Thanks in advance if anyone can help me.
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