Hi, my oil boiler it lights with no problem and than about quarter of the way the flame goes out?

Question

than it goes back on this happens two three times in a full cycle i do not have to hit the reset button at all,the flame goes out for a few seconds and lights back up.... changed the filters, nozzle, electrodes checked all fitting ty for your time james

Answer 1

thermocoupler is bad

Answer 2

It could me that it hits the temperature it should to heat the water and then goes off. When the water cools down it goes on again.