We have a combi in the loft at home which was fitted feb last year by British Gas (previous owners removed night storage and had gas c/h fitted). We're having some issues with it now though - hot taps on their own are fine but if you also turn on cold, the hot tap pressure drops and the water goes stone cold. And the boiler makes some nasty sounding noises
I thought it might be pressure related, possibly the cold forcing its way back through the hot pipes somewhere so will check the gauge later tonight. Any other things i should check as well?
annoyingly and very unsurprisingly the BG 5yr warranty isn't worth the paper its written on as they say thats only valid with the people who lived here before