Re-pressurising issue Worcester Bosch 240

14 Nov 2007
Reaction score
United Kingdom
I have put a radiator back on the system after decorating. The pressure on the boiler dropped to zero. I have attached the silver braided filling hose but when I turn the black knob to fill the system nothing happens. The black knob keeps spinning but no water comes out. I have even unattached the opposite end to the black knob to see if water comes out, but no.
Can anybody help please?
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If you turn the knob, it spins endlessly and still no water, I would guess it could potentially be an option that the valve is not working 100% correctly
Thanks for the reply.

I guessed the valve may have stuck. I tried it this morning before I came to work and it worked perfectly so I don't know what was going on with it last night.

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