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Mend Alpha CB 24 Combi Boiler Low Pressure Filling Loop

low pressure on my alpha combi boiler?

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?

Nigel
April 2008
AlphaAlpha CB 24Heating, Home Heating SystemsCombi Boiler Low Pressure Filling Loop
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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Alpha CB24 Boiler Losing Pressure - Fixes