It can be really annoying to find that one radiator out of the whole house is not getting hot. This is why we have produced a brief video telling you the possible causes and solutions.

Make sure there is no air in the radiator. Using a radiator key and a cloth, release any air trapped in the radiator. Remember to top the heating system up with water should it be a pressurised (sealed) system.

If the radiator is cold at the bottom it could be sludge in the radiator. Close the valves on the radiator, remove it and then clean out the inside with a hose until the water runs clear.

Always remember to check the lockshield valve on the radiator is open and that the TRV pin is not stuck down.