Hi there, please could you advise if running a combi boiler for only hot water with zero pressure for an extended period (4/5 weeks) could cause any damage to the boiler ? This was done whilst a few of the radiators were taken off the walls for decorating. Upon re-pressurizing the boiler after fixing the radiators back on the boiler developed a serious leak from the unit and had to be replaced - it was roughly 5/6 years old.
Any advice would be greatly appreciated.
Any advice would be greatly appreciated.