I hear what you say Simon.It sounds that the older pumps are not fit for purpose and they have a short life span and thats why they have changed to the other model. Has any body got some information saying why vaillant have changed or the pump is not reaching its expected life span. I have found...
Thanks for that info.What you have descibed fits spot on. Is this a fault with the pump. I have got our boiler man to fit a new pump and he has advised that this is common with these pumps..... Vaillant are playing on the fact that it is just over two years, So they dont want to get involved.