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?
Thanks,
Alex
Can anybody help please?
Thanks,
Alex