DIY Doctor

Only 3 radiators working out of 7

Postby philbarrow » Tue Oct 20, 2009 10:00 pm

I have a combi boiler with 7 radiators, 4 up 3 down. I lost heat to 2 downstair radiators so drained the system. since re-filling I have now lost 2 more - 1 up and 1 down. Pump is fine and working well but i am not getting any heat on the return to the boiler. Help!!!
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Simply Build It

Postby steve the plumber » Thu Oct 22, 2009 3:01 pm

Sounds like a large air lock in the system. You'll need to get a professional in.
steve the plumber
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