Radiators won't heat up?

[Kristian]

We have a oil burner and recently got a back boiler stove plumber in. The pipes were already there for the stove but have been dormant for 8 years until I got the stove plumbed in. It created a massive air lock in the system. The radiators are ran on 2 loops (living area and bedrooms) I got the air out of the living system but only 1 of the 4 radiators in the bedroom area are warming up. I've tried bleeding them all an got no air. Was up in the attic and the one radiator which is getting warm there's a T to another radiator an the pipes coming off this are only warm for about a foot before going cold, tried bleeding and no joy.. Any help or suggestions be greatly appreciated

 

[ShaunCorbs]

Who plumbed in the solid fuel stove and what brand ?

 

[CLC plumbing]

Will the rads heat on either system burner or back boiler? Check the circulating pump by removing the screw on the top, sometimes air gets trapped there and this can be an easy fix. A gravity-fed system can be tricky to get back circulating if there are lots of radiators. You can try to close off the rad valves leaving the furthest one open with the central heating on. Check also if the back boiler heats up from the boiler.