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Mend Worcester Bosch 28i Junior Home Heating Systems

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Mend Worcester Bosch 28i Junior Board Flash Boiler

why does a component on pcb board flash when i turn up thermistan on boiler?

why does a component on pcb flash when i turn up stat on 28i junior boilerto full then it returns to normal after 10 seconds

barry
December 2013
Worcester BoschWorcester Bosch 28i JuniorHeating, Home Heating SystemsBoard Flash Boiler

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