Last week I cleaned the shower (Bristan Bliss) and the shower stopped working in the main bathroom. I have checked all the fuses in the fuse box and all are OK. There is one fuse marked as ‘shower’ which is fine. When I remove the fuse the shower in the other shower room stopped working too. I presume they are on the same fuse. I have checked the line in the shower and it’s dead. I have checked both lines going through the ceiling pull switch and both aren’t live. What might have happened in the line? It’s live at the fuse box (ground floor), if it’s the same line, it’s live at the shower room on the first floor, but not live by the time it gets to the 2nd floor. I can’t for the life of me figure out what might have gone in the line. It’s all the correct diameter cable etc. other things I tried in the tests - replacing the pull switch. I tested all fuses with a multimeter, and all the lines with a voltage tester (touch not distance).