I turned on my radiator after a period of 4 months for around 20 minutes. I then turned the valve off (to shut mode). Right afterwards it became stiff and now does not turn either way. What can I do. Help...Winter is on its way.
To the people that viewed but were unable to answer my query I figured a way to solve the problem. Unscrew this at the top, apply some oil around the pin, leave for 5 minutes then use a plier to gently turn in the opposite angle (to turn on). This should release the jam. You may see slight weeping of the valve so just use a cloth/ tissue to absorb the water.