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absurdbird
frankenbike
Yeah, when I completely remove the valve the radiator comes on. That is when the little pin in the radiator is fully up. So to switch the radiator off, the central plunger part in the the thermostat thing pushes the radiator pin down (when you turn the thermostat valve to cold).
I am inclined to think that the metal pins on the valve adjust the height of the plunger thing in the centre, and that it's set to the maximum depth (28). But not sure.