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Tampered thermostat radiator valve control head
One of my house mates has intentionally broke a couple of thermostat
radiator valve control heads, so that they are permanently on. I am rather furious
that he has done this because the rooms are hardly used and they leak a
large amount of heat. He has also done this on the sly hoping that i
wouldnt find out.
Fortunately, he has gone on holiday for a few weeks otherwise i would
have an argument with him and there would be tension in the house for
quite some time. I want to repair these valves before he gets back
without replacing them and without calling a plumber.
The control heads are Caleffi 200. The heads can completely rotate
between fully off and on but like i said, the radiator is always on
regardless of the setting that the valve is on.
This is a picture of the control head
And this is the good piece of documentation i have i have been able to find.
There is a good diagram of the control head on page 3.
Does anyone know how he might have broken the head? And does anyone
know how i can the remove plastic shell/housing without damaging it so i
can fix it?
Any help is much appreciated.