my alpha cb 24 combi boiler keeps losing it`s pressure 2/3 days after i`ve topped it up with the filling loop.I`ve checked the system for leaks and can`t find any,what can i do next?
If you are sure there are no external leaks on your system then the fault must be internal - maybe with the heat exchanger itself which is allowing water out - which is turning to steam and venting through the exhaust. A service engineer could pressure test your system if you could find one willing.
John
April 2008
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