I've got a fairly new (less than 5 years old), Beckett AFG oil burner. I bought my house last year and the unit was all sooted up. My friend, who is a commercial boiler tech, helped me change out all of the filters, nozzle, electrodes, etc and I brushed and cleaned the entire boiler. One problem we had last year, was that the unit would only run with the air supply almost completely closed. Because of this, the unit ran really rich all winter and I even have soot stains on my roof. Does anyone know why this unit would shut off when I try to add air into the mix. I think I was probably throwing money up the flue so to speak last year.
Thanks, Dave