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Mend Worcester Bosch 15CBi Boiler Overheat

How can I fix my Worcester Bosch Boiler 15CBi ?

My Worcester Bosch boiler 15CBi shows the overheat signal (continuous flashing light). All valves, pump, programmer seemto be working fine. Any ideas before I have to call in WB at great expense?

Patrick Chatt
January 2009
Worcester BoschWorcester Bosch 15CBiHeating, Home Heating SystemsWorcester Bosch Boiler Overheat

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Worcester Bosch 15CBi Overheat - Fixes & Help