Have a house full (about 10) radiators with Mistral II TRVs. As far as I am aware most work fine, casual testing done. But two rads. wont shut off. Heat is always on when boiler is on thus wasting heat. One of them is in a spare room and the other the bathroom which I would like to shut off. Both say off but heat up. I have had the thermostatic head off and the pin depressed a few millimetres and everything seems working. I see you can get replacement heads would that be the problem or something else. Thanks for any help.
Mistral II TRV wont turn off
- Thread starter banger696
- Start date
DIYnot Local
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