Fuel pump keeps tripping

[panteramatt]

I have an old Weil McClain oil burner and the fuel pump trips about twice a week. I had it serviced and its still the same. When I push in the pumps button then hit the transformer reset button it fires right up and doesnt burble too loud or have a fuel smell like it was loaded up with fuel which tells me its starving of fuel then trips. Im a novice so bear with me but could it be anything else besides the fuel pump itself? Anyway to test the pump? How hard are these to swap? I already put a new control box in it 2 years ago so I doubt its electrical.

 

[easyflow]

This could be a number of problems,
The first thing you could get your engineer to check is a partially blocked oil filtre or air in the line.
Other than that you start going onto faulty transformer loose wire connections, water in oil tank.
You need an engineer to go right through it.