RADIATOR Thermostat


Postby glenmar13 » Tue Mar 31, 2009 10:44 am

My existing thermostat doesn't seem to be working and wan't even cut off. Can you service them or how do I change it.
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Postby plumbbob » Tue Mar 31, 2009 7:25 pm

Unscrew and remove the thermostat head. In the centre of the valve still attached to the rad, you will see a small pin. This pin should move up and down when pressed. If it is not, it may be seized so tap it with a small hammer to try and free it.

Apart from this there is little you can do other than drain the system and fit a new valve.

It may be worth swapping the head with another working rad to see which bit is faulty. If it is a brand make, you may be able to replace just the head if it is faulty.
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Postby sparx » Tue Mar 31, 2009 7:33 pm

Hi, header says radiator thermostat? do you mean electrical room stat. or
a thermostatic rad valve?
If room stat. it's unusual for them to fail, normally whatever they are controlling fails to respond, depending upon system it could be a motorised valve, more info on system you have would be helpful, ie combi, 1 or 2 motorised valves etc.
regards
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Postby glenmar13 » Tue Mar 31, 2009 9:23 pm

Hi .
Its the termostatic rad valve
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