I have 15 gas heating radiators in my house, some of them are not warming up. I have bled them, there is no air, but I think they are blocked etc. In the past I tried tapping them with Mallet which worked, but 1) I haven't got a mallet now! 2) I haven't got time to go and buy one, 3) am not sure if it will still work or not. I am looking for you to come and check what is wrong and why it keeps happening. My radiators were power flushed three years ago.
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