One Radiator Cold - No TRV fitted (I think)

[3689507]

I have one radiator cold in my house (though two others are starting to do the same, I think). The house is about 3 years old.

I don't think there are any TRVs fitted (though I didn't know what one was until last night), as there is a thermostat in one room upstairs that controls the upstairs heat, and a thermostat in a room downstairs that controls the downstairs heat. The water then runs on its own pump.

If I take the cover off either end of the manual valve they both look the same, with nothing to pop up or down, hence why I think there is no TRV.

The radiator does not need bleeding; I checked and water squirted out straight away.

I can't seem to find any information that doesn't relate to "tap the TRV, it's probably stuck". Any help?

 

[grahamtheplumber]

you may have a blockage in the rad itself of in the pipework.the only way to check is to drain the rad and take it outside and flush through with a hose.then connect a hose to each of the rad valves and turn on to flush some water through.

 

[moggridgeplumbing]

As the house is just three years old we can assume the heating system is quite new! Therefore I would first check that the other valve (lockshield) is open - if so then the system may need balancing. A TRV has got a head on it with numbers written around the side.