I have an old but good Trianco EuroStar 50-60 (S) oil fired boiler with a Riello RBL G5 BF burner which has been well maintained and regularly serviced by me. I am not a professional but have a reasonably good working knowledge of the boiler and acces to a Brigon test kit.
I am recently finding that when it's cold the burner is taking quite a long time to establish a flame. It will ignite for maybe 10 seconds, stop, re-ignite and so on for a period of several minutes and multiple re-ignitions before the flame is permanently established. It does not lock out. Once everything is warmed up it will establish a flame immediately.
I fitted a new Danfoss nozzle last July during the annual service. The oil pump is a little noisy but the pressure is running at the specified 70 psi. The two oil filters are clean. No water in oil tank (tested with water finding paste). I haven't used a combustion analyser or smoke pump for some time but the flame looks about right.
Before I take a closer look I will appreciate comments on possible causes of the problem. I'm considering the photoelectric cell, the oil pump solenoid coil or possibly the control box.
Any comments much appreciated. J.
I am recently finding that when it's cold the burner is taking quite a long time to establish a flame. It will ignite for maybe 10 seconds, stop, re-ignite and so on for a period of several minutes and multiple re-ignitions before the flame is permanently established. It does not lock out. Once everything is warmed up it will establish a flame immediately.
I fitted a new Danfoss nozzle last July during the annual service. The oil pump is a little noisy but the pressure is running at the specified 70 psi. The two oil filters are clean. No water in oil tank (tested with water finding paste). I haven't used a combustion analyser or smoke pump for some time but the flame looks about right.
Before I take a closer look I will appreciate comments on possible causes of the problem. I'm considering the photoelectric cell, the oil pump solenoid coil or possibly the control box.
Any comments much appreciated. J.