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Mend Worcester Bosch Central System Pump

How can I fix my Worcester Bosch central heating system?

The circulation pump short circuited and blew the boiled supply fuse.
I replaced the pump but now the pump runs continuously even though the boiler comes on and goes off at the preset times and when it reaches the correct temperature.

BOB AMBURY
January 2010

Worcester Bosch Heating, Home Heating Systems Central System Pump

I'm just guessing, but many boilers power the pump via the circuit board in the boiler. This is so that the pump can typically run for a few minutes after heating/ hot water demand has ceased. Could be that your pump has wrecked this part of the circuit, so you need a replacement/ repaired circuit board, expensive. There are online suppliers e.g. cetltd, who'll supply a refurbished one.
Remember, I'm only guessing, thoguh trying to help!

Colin
January 2010

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Worcester Bosch Pump Running Continuously - Fix