Thanks for all the help guys. The customer is happier now, still abit annoyed about hot water boost button not working.
I think I will have to travel down to Vaillant at Elland to have some training on these weather compensaters not only for installation purposes but so I know all the ins and outs of the device, so I look like I know what I'm talking about.
Also I think Vaillant need to make it a bit more clearer that all function will not work if a standard cylinder is used
I think I will have to travel down to Vaillant at Elland to have some training on these weather compensaters not only for installation purposes but so I know all the ins and outs of the device, so I look like I know what I'm talking about.
Also I think Vaillant need to make it a bit more clearer that all function will not work if a standard cylinder is used