DIY at my friends house, his pull cord stopped working for bathroom light, so i went over and the wires that are coming out the roof was 3 wires and thats neutral, live and earth. got a new pullcord panel, put the earth in the box terminal, neutral into com and live into L1. turned the breaker switch on and pull cord doesn't work still. There's a switch fuse outside the bathroom aswell which I opened up all connections are tight tested with a voltage pen and it lit up perm red showing that theres voltage, but on the pull cord switch i tried it there and nothing comes up. any help? could this be something in the fuse board that tripped but isn't on? i forgot to check that! will check it tomorrow.