I have a Riello 40 fired boiler, but it's going into constant lockout. It's had a couple of emergency 20L oil drums thrown into the tank, and the oil has been bled through to within about 1ft of the boiler.
It's not exactly 'flowing' as the tank is still quite low, can the Rello lift the oil itself via the pump, or do I need to prime it right to the pump ? How ? I can't see any bleed valves or any way to get the oil further.
Is it self priming ?
I've replaced the gate valve on the tank, and there's a flow of oil coming out of the filter, so the oil level is definitely above the outlet (!)
There is also a device which I take to be an oil flow cutoff valve (it's connected to a capillary tube) and is in line with the oil feed with a label 'push buttton hard to reset', but I can't see a button to press on it :/
Any advice appreciated before I get a man in.