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Trianco Oil Boiler start-up plumbing question
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.

Trianco Oil Boiler start-up

This has been posted to our plumbing forum, click Trianco Oil Boiler start-up to reply to this plumbing question.
 
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