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Since shortly after we had our boiler replaced and we had a Magnaclean fitted on our system the pipes have been making a very loud whining sound and vibrating shortly after water is run, the Magnaclean vibrates a lot so I wondered if it might be causing the noise on the system.

I have tried fiddling with this and the little lever jsut moves up and down freely and doesnt wind back, so i guess thats broken would this cause my other issues with the boiler not firing in cold weather?

reopening an old topic because my boiler is still doing this I have replaced the thermostat additionally when the hot water is on, for some reason it also heats the radiators, i am not sure if these issues are related it only seems to happen when the weather is cold, its driving me mad

thanks for the help

i was thinking the room thermostat was causing the issue so i could be correct

could you explain what an external control problem is please?

i am sorry if this topic has been covered before but i have a 16 year old Potterton gas fired boiler (sorry i don't really know alot more about it than that), its being replaced in the new year but we need to limp it through for another few months however in the recent cold weather (it...