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Mend Worcester Bosch 28SI Boiler Overheating Pressure

how can i fix my worcester 28si?

due to building work, i have disconected the radiators on my system. my boiler now keeps overheating, and cuting out. is this because of no pressure in the heating side?

colin p
July 2010
air in the heat exchanger

b
July 2010

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