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Mend Worcester Bosch 28 CDi Home Heating Systems

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Mend Worcester Bosch 28 CDi Pressure Keeps Rising

pressure keeps rising ?

i have aworcester 28 cd i and the pressure keeps rising, every couple of hours i drain a radiator and the pressure lowers ?

maria
December 2010
Firstly, make sure the filling key is removed so that no water can enter the system by that route.
Assuming it is removed and the pressure is still rising, it'll be the domestic heat exchanger failing internally and will need replacing, had this fault on many occasions.

Carefree
December 2010
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