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cheers folks, i found the booklet in the end and got it sorted...its not good thinking you need a plumber out when you only have £1.40 in the bank...

hiya, i just bought a flat with a valliant ecomax boiler, its been great until today when its showing F25 error and wont turn up when turned off and on again. i think i may need to refill it as the pressure is right down, but it is not on... so, how do i refill? there doesn't appear to be any...