Have you confirmed that it won't run as-is? Stranger things have happened...
Scottsman wrote:Wow. Sounds like this will set me back a bit. Maybe just as much $$ to replace the whole burner unit?
It will be about $200 for a new control and motor (that assumes your local supply house doesn't murder you on the price). The motor is not a 5 minute install, if you have to pay someone to replace it...you might want to just buy a new F5 chassis and have someone do the final combustion adjustments. I am a big fan of Riello burners, but you can also look around for a used Beckett or Carlin and swap it on.
What model is the boiler?