Working on a Heil Propane furnace with electronic ignition.
First symptom was that the pilot flame was sooty, yellow, like burning kerosene, about 6" long. I removed and cleaned the whole pilot assembly inside and out with steel wool, compressed air etc. Adjusted the pilot pressure (VR8440) down until the flame was normal sized, but it is still a lazy sooty yellow flame like a candle. The pilot assembly is a Honeywell Q345ALB 8730 , the pilot flame puts soot on the pilot assembly.
Do these pilot/ignitor assemblies go bad? What would cause such a sooty flame? When the burners light they burn ok.
Any ideas? Ive been pondering this a while.