Loads of air in central heating.

[Chris12345678]

Evening,

I am getting a lot of air in my central heating system.
After turning the heating off, the header tank (in loft) is refilling for maybe 5 minutes, and you can hear the air passing through one of the upstairs radiators for a further 5 minutes.
I can't find any leaks and nothing is coming out of the overflow on the header tank?

Thanks.

 

[Chris12345678]

Oh, and the CAPTCHA thing on registration doesn't work on 'What is next day after Tuesday?'

 

[rpm]

Oh, and the CAPTCHA thing on registration doesn't work on 'What is next day after Tuesday?'

Just another day?

 

[ShaunCorbs]

Any work gone on with the system?

 

[Chris12345678]

Any work gone on with the system?

No, nothing at all.
I've always had air getting into it, and having to bleed maybe twice a winter, but this is silly!

 

[townfanjon]

Old system , pics of boiler and pipework may help .

 

[ShaunCorbs]

Could be corrosion producing hydrogen

 

[Chris12345678]

This might take a few attempts:

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[Harvest Fields]

Evening,

I am getting a lot of air in my central heating system.
After turning the heating off, the header tank (in loft) is refilling for maybe 5 minutes, and you can hear the air passing through one of the upstairs radiators for a further 5 minutes.
I can't find any leaks and nothing is coming out of the overflow on the header tank?

Thanks.

Any water leaking from the overflow outside when the heating is on?

 

[Chris12345678]

No, nothing from overflow at all.