I've done as your FAQ suggested, but I can't get the pin to shift. How hard dare I hit it with the hammer? What's the next move? I can't think why the pin should be out as we've never turned off this rad, which is behind a radiator cabinet.
While I dont disagree with any of the suggestions, I can personally state the pull and push method has worked on various ocasions for me. But of course it depends on WHY the pin is stuck, and other methods will work.
If you do pull the pin, don't pull too hard. You may pull the pin right out and then drop it, and water will spray out and you will be embarrassed. Not that I would know
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