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Old Thorn EMI Boiler Banging and clanking noises!!!!!!!!!

Postby WHYDIY » Mon Dec 21, 2009 8:02 pm


I have a rather old (approx 25yrs) Thorn EMI gas boiler that just does my central heating.

I do intend to swap it for a new one next summer (obviously fitted by a CORGI contractor).

However its currently making very loud clanking and banging noises when it shuts off.

Why does it do it??????

Cheers in advance and have a great christmas!
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Simply Build It

Postby plinty » Wed Jan 06, 2010 1:08 pm

Hi my system is the same, Does your system clang n bang more when its been running at high temp then when switched off?
I have looked up this problem before for myself and was led to believe it was gunk and rubbish floating about in the system and to flush the system out.
I have not done it yet myself so i cant tell you if its the remedy.. Sorry!
But its a start for you to look at... Good Luck! :wink:
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