I noticed yesterday that the pressure on our combi was low. I discovered a leak where the lock shield valve attaches to the rad stem. In fact the nut was surprisingly loose. The question is how did this work loose? The system has been stable for months and the rad (a towel rad) has been installed for 18 months. Could the recents very cold weather up here in Scotland be the cause? It has dipped below -10 an number of times recently. Should we keep the heating on during the coldest of nights? Thanks Ian Perthshire
- posted
14 years ago