my burner knocks on and off every 45 seconds or so

johno, June 2009

HI.
THE PHOTO CELL COULD BE DIRTY OR SOOTED UP.
YOU MAY ALSO HAVE POOR COMBUSTION CAUSED BY A FAULTY OR PART BLOCKED NOZZLE OR FAULTY OIL PUMP? THE CELL ISSUE IS REALLY THE ONLY THING YOU CAN ATTEMPT TO CLEAN BUT IF IT IS SOOTED THERE WOULD BE A REASON FOR THAT. THE BEST THING YOU CAN DO IS RING AN OIL SERVICE ENGINEER . BUT MAKE SURE YOU HAVE PLENTY OF OIL IN THE TANK FIRST?

TERRY, June 2009