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- 24 Feb 2005
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Hi there ,
I have a potterton suprima 30 boiler. As I understand it on a fully pumped system supplying 9 radiators and hot water for my bungalow on a small bore system{pipes about thickness of litle finger at rads}. After draining and refilling the system I had a lot of banging from the boiler but that has now cleared. However Find that the 2 furthest radiators remain cold and that the boiler keeps cutting out on overheat . The pump in the loft seems a little suspect but on its high setting and by use of the bleed screw seem to be able to coax it a little bit. Tried switching off the rads that work ok so as to divert water to the blocked / airlocked rads. And also flushing the rads by removing / opening the bottom drain near control valve on radiator and also bleeding all rads{with system off but still have 2 far rads not heating}. The system is about 10 yrs old and has a significant amount of corrosion
What would you reccomend I try next?
I have a potterton suprima 30 boiler. As I understand it on a fully pumped system supplying 9 radiators and hot water for my bungalow on a small bore system{pipes about thickness of litle finger at rads}. After draining and refilling the system I had a lot of banging from the boiler but that has now cleared. However Find that the 2 furthest radiators remain cold and that the boiler keeps cutting out on overheat . The pump in the loft seems a little suspect but on its high setting and by use of the bleed screw seem to be able to coax it a little bit. Tried switching off the rads that work ok so as to divert water to the blocked / airlocked rads. And also flushing the rads by removing / opening the bottom drain near control valve on radiator and also bleeding all rads{with system off but still have 2 far rads not heating}. The system is about 10 yrs old and has a significant amount of corrosion
What would you reccomend I try next?