My Glow Worm Easicom 28 has hot water coming out of the cold water system and the delight of a warm toilet flush. The boiler was serviced by BG in February and because I rarely use the cold water tap I MAY not have noticed the problem immediately after - only in the last couple of weeks. Glowworm say that it can't be a Easicom 28 fault as the cold water draw is not linked but nothing has been done to my pipework so am I missing something? Is there an engineer out there who knows what MAY be going on.? My BG Home Service contract doesn't apparently include boiler repair so I'm stumped either way. What on earth is going on? Pressure is normal - in the boiler AT LEAST!!!!!