I have an Ideal Classic boiler with a sealed system which was installed 14 years ago. In the last 3 years I have replaced all 6 radiators at least once due to leaking. I have also replaced the pressure gauge, the actuator, the pump etc etc in the same time period. I have just had the boiler serviced and yet I have a major problem in that the pressure gauge is hitting 6 bar and the radiators are over heating. Can anyone tell me what the problem is please?

ellieg, October 2011

i think your pressure vessle might have gone ifyou cant pressurise it with a bike pump its had it

nick, October 2011

Ellieg you can open bleed nipple on a radiator and let water into a pan until pressure drops to a safe level of 1.05 bar.

Peter Ball, October 2011

Ellieg, you need to check you have not left filling loop valve open or valve faulty and the system is filling slowly take loop off to prove this is not happening

peter Ball, October 2011

Problem is with expansion tank need recharging need cycle pump empty system pump to 1'5 bar

Ltd, October 2011