Hey,
I have this problem with my bedroom radiator. Whenever I turn on the heating the radiator makes this banging sound for about 20-30min until it fully heats up, then it stops. And when I turn off the heating, same sound starts again for about 20-30min. I have pulled the floorboards and saw that one of the pipes were resting on wood stud. I have put lagging around the pipe however, it did not fix the problem. The radiator has 2 pipes coming in/out. I have open both valves all the way to open position. I have tried bleeding the radiator however as soon as I open the bleeder valve water starts flowing, like there is no air.
You can listen to the banging sound by following this link => https://file.io/mDKBzUsFW20m
Does anyone have any other ideas how to fix it? Its the only radiator in the whole house that is making this sound and my landlord is hesitant in doing anything about it.
Thanks
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