What should I do if a radiator isn’t heating at all?

Question

I’ve got central heating on but one radiator doesn’t warm up. Checked the rest and they're all heating fine. Is there anything I can try myself before calling someone?

Sam · Answer

If the radiator is warm at the bottom and the top is cold then this indicates that there is air in the radiator and it needs to be vented by the vent key
If the radiator is cold at the top and cold at the bottom, then there is potential other issues which would then require an engineer

Rob · Answer

Try bleeding radiator to check if it is full of air, if all other rads working OK turn them off to force water to this radiator only to remove any potential blockage from pipework. Remove trv (if it has one) and check if pin is stuck into the valve shutting it off. Release pin if stuck. If these don't work potentially need to book engineer

Gary · Answer

Turn off all other trvs on radiators to push flow to that one radiator once it heats up turn all radiators back on

Andrew · Answer

Step one, make sure the valves are open.

Step two, once you have established that the valves are open, bleed the radiator.

Step three, if you valve carried out 1 & 2 and no improvement contact a heating engineer.

Hope this helps

Mohamed Abdallah · Answer

You will need to balance the heating system. Close the lockshield of the radiators close to boiler then wait if the radiator that's not working to heat. Once it's working, start by opening the lockshield

What should I do if a radiator isn’t heating at all?

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