How do I bleed an airlock out of my Warmflow oil combi?

Hi there,

I have a Warmflow combi oil fired boiler and we ran out of oil and although the tank is full again it won't restart.

I am guessing I need to bleed the air out of the oil feed pipe but don't know how to do this.

The boiler is either a B1 series, it is definitely a Riello RDB 2.2 Burner but I just don't know how to approach it.
I do have the manual but this is no help to an amateur like me.

Michael
April 2012

Thanks Karl.
I had the same problem and fixed it in 5 minutes!!!!

Bob
March 2009

Apologies for not feeding back sooner, and thank you for the suggestions.

I found how to remove the cover from the burner and a bleed nipple was underneath this. All I had to do then was use an alun key to open the bleed nipple, fire up the boiler by pressing the red button on the burner and as soon as only oil was coming out of the bleed nipple, I closed it and the boiler worked just fine.

Karl
February 2009

hi,

call me and I will tell you

077900 38328

gordon

Gordon at fix my oil boiler. com
December 2008

I have no experience with oil powered heating, but if it is anything like a diesel engine, you need to let the air out of the pipework.
Can you find the oil pump? If you can, i would follow the output pipe as far as i can and then slacken off the connection at the furthest end away from the pump. I would have thought you would need to have the pump running to get the pressure up to force the air out. I have no idea what the operating pressure is so i don't know how dangerous this would be, or how much oil would come out. If you dribble diesel onto your drive outside it isn't much of a problem. Onto your carpet or up your wall i can see as being a little annoying.
That is how i would approach the problem if your boiler was mine. There may even be a bleed nipple which needs to be opened to let the air out.
If you have to prime the pump itself, i would have thought there would be a manual way of lifting oil into it with a manual lever somewhere between the pump and the tank. Or maybe a plastic/rubber bulb. As is used to squeeze to move the diesel on some cars.

Rob
December 2008