Radiator leak from top valve/nut

[tonysab]

Hi I noticed this morning our bathroom radiator had a small dribble of water down the side of it. On closer examination it seems to be coming from the large hexagonal nut at the top - not sure what this is called, its the opposite end to the bleed valve. It looks like there is a rubber seal around it and a slight bit of rust, presumably this doesn't help things. Not quite sure the best course of action here, turn the valves off, undo the large nut and replace/clean the seal?
The rad is approx 6 years old and we have had probs with it rusting at the bottom - I guess due to condensation.
Any advice gratefully received.

 

[HERTS P&D]

You have answered your own question, turn off both radiator vales, remove large nut, apply a few turns of ptfe tape. Refit the nut and open radiator valves.
Also note how many turns it takes to turn off each radiator valves.

When was the system last drained down? You could do a drain down and supply new inhibitor.

Is this radiator next to the toilet?

Andy

 

[tonysab]

Thanks for your advice. It's not directly next to the toilet but about 5-6 feet away. System prob not drained for 5-6 years when this rad was fitted, I think doing that is prob beyond my capabilities but will mention to a friend who undertakes such things. Thanks again.