Hello,
I moved in to my flat And i have had no issue with the Boiler Until 2 weeks ago.
The Hot water is not firing up, It will however fire up for the C.heating.
The pressure is fine,
One thing i have noticed is, If the C.H is on and warming up, As soon as i turn a H.W tap it will cut off,
Then i turn the Tap off, & It fires up again,

Any Ideas?

Steve, November 2012