Looks like not solved this problem yet. Started sooting up again after week, still mainly around the nozzle and blackening the photocell ...lockout.. Ive checked the nozzle again and back to a small squirt at end shut down. Presume drawing air in somewhere, but it is on a tigerloop. This should bleed air out, but could air still be drawn into the nozzle oil line causing it to compress and then squirt when expanded.?
New issue today was tigerloop was empty boiler been off for day and half. No sign of leaks presume check valve passing ?. Could this draw in air..?
Phoned grant Friday for advice and the tec said the cleaning door seal could of compressed over the years and caused the door to sit further in causing the long drip plate just under the tubulators to touch the door insulation causing the an air flow restriction which end in sooting.. There is some evidence of this with a black soot line on the door insulation.
But would this cause sooting on nozzle and photocell?
Turning into nightmare...
New issue today was tigerloop was empty boiler been off for day and half. No sign of leaks presume check valve passing ?. Could this draw in air..?
Phoned grant Friday for advice and the tec said the cleaning door seal could of compressed over the years and caused the door to sit further in causing the long drip plate just under the tubulators to touch the door insulation causing the an air flow restriction which end in sooting.. There is some evidence of this with a black soot line on the door insulation.
But would this cause sooting on nozzle and photocell?
Turning into nightmare...