Hello
Whilst investigating an intermitant fault on my central heating system (which turned out to be a faulty Potterton circuit board) the heating engineers installed a new three-way valve. Whilst the sytem now works perfectly, it regularly emits a loud banging noise when the domestic hot-water programme switches on or switches off. The noise come from the area round the new valve or pump and sounds like very loud water-hammer. (You can hear it from everywhere in the house and it regularly wakes swmbo up in the morning.......not good!).
Could this be due to either a sticking valve or perhaps air still in the system?
Any suggestions would be gratefully received. Thanks
Whilst investigating an intermitant fault on my central heating system (which turned out to be a faulty Potterton circuit board) the heating engineers installed a new three-way valve. Whilst the sytem now works perfectly, it regularly emits a loud banging noise when the domestic hot-water programme switches on or switches off. The noise come from the area round the new valve or pump and sounds like very loud water-hammer. (You can hear it from everywhere in the house and it regularly wakes swmbo up in the morning.......not good!).
Could this be due to either a sticking valve or perhaps air still in the system?
Any suggestions would be gratefully received. Thanks
