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Mend Worcester Bosch 12Ri Light Blue

how can i fix my worcester greenstar 12ri?

the light kept flashing, now there's nothing the blue light has gone and the boiler wont start

aidan pike
January 2010
Worcester BoschWorcester Bosch 12RiHeating, Home Heating SystemsWorcester Light Blue

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Worcester 12Ri Boiler Not Starting - Fixes