Any OFTEC (Oil Firing Technical Association) registered company or technician will tell you, it's not just a case of cleaning out the combustion chamber and changing the nozzle in a service.
There's oil pump pressure, CO2, CO and Efficiency tests carried out on a proper service.
To not service a boiler once a year is false economy. The nozzle wears so you start using more fuel and thats just for starters.
With regards to the "lockout light". Is the photocell clean? Why did the blast tube need replacing? Is the blast tube installed correctly (some types can be fitted 180 degrees out)? Are the electrodes clean? Is the air intake clean?
Hope some of this helps
Martin
Martin
October 2007