hi guys, wen runnin the shower i seam to get a smell commin from the electric cuboard just where the live feed comes from the main 100 amp fuse also this fuse(service head fuse) gets quite hot at time and makes a cracklin noise. i no ive got to call the lecky board but can any one tell me why its happening.? ps checked the wires on the shower (pull cord switch and found the neg wire had gone black and was loose at the terminal screw after fixing it, it was ok and smell went for a couple of weeks but as come bk ??