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Mend Worcester Bosch 42CDi Boiler Fires

Worcester Bosch 42CDi Making Loud Noises?

When my boiler fires up it makes a loud "motorbike" type noise, which rattles the casing and vibrates throughout the house. This tends to last 5-10 seconds and doesn't seem to affect the heating and water.
We've checked the pressure and there are no error messages.
Anyone else had this problem?
Help!

Woodley
October 2013
Worcester BoschWorcester Bosch 42CDiHeating, Home Heating SystemsBosch Boiler Fires

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Find out how to mend Worcester Bosch 42CDi home heating systems