Hi, unfortunately for me I've done no research and had a plumber 'mate' pick out and fit me one of these boilers. Now it seems to fire up briefly for say half a second when i turn the cold tap off?? Very confusing? Any idea why this maybe? It did stop for a couple of weeks but I needed to turn the water off so I could fit a shower in the bathroom and now the problems back. Any advice would e massively appreciated?
