Recent content by durhamgasman

that is,if you read between live and neutral and you get mains voltage,or whatever voltage it should be,and the valve does not open,then the valve is faulty,not always open or short circuit,could be the diaphragm inside not lifting,etc

You would get a voltage reading across live and neutral regardless of whether the coil is open circuit or not.if you test between live and earth,you would read a voltage even if you have lost the neutral,and the valve could be ok