B
Brambles99
I have a worcester 15SBi boiler that keeps losing pressure with no obvious signs of a leak. I have checked every pipe in the system (Including those under the floorboards) and there appears to be no leaking water. The pressure drop occurs when the system is not in use and has been cold for a number of hours. Furthermore, when a section of the heating that feeds the conservatory in the house is isolated the problem doesnt occur. A friend who is a plumber has thoroughly checked the pipes in the conservatory and as mentioned earlier there are no signs of a leak. What are the possible causes of such a scenario? Another point worth noting is that the wall where the relief pressure water pipe empties outside the house shows signs of significant water discharge. However, at no point have I witnessed the pressure exceeding 3 bar and as stated earlier the pressure drop occurs when the system is off.