one radiator stone cold since this morning was working ok yesterday saw the previous comments about switching on and off tried that no joy its a double rad with a thermostat control
charl is right just assumed you had already tried this
deano RGI
November 2010
unscrew the trv head off it might have failed causing a restriction
deano
November 2010
try bleeding the water out! you need a radiator key and then turn the screw in the top side of the radiator until the sound of air stops and water starts coming out,then tighten it back up.It might be full of air and thats why its not heating up!