Lennox Oil Burner Troubleshooting
HELP.
I have a Lennox OF23Q3 oil burner. It is tripping out the safety button on the primary control erratically during operation. Sometimes it runs 20 minutes before tripping and sometimes only a few minutes. When it does trip the blower just constantly runs until the power is cut.
I have changed filter, nozzle, cad cell, adjusted the electrodes. With no help. I have also jumped the cad cell terminals as described in the service manual. It did not trip off which is supposed to eliminate the primary control as a problem.
Any idea what I should be looking at to repair it? Perhaps the blower control board?