i have lost the wiring picture for my oven ?

the earth wire is green and yellow

mm
October 2011

makes and models come in handy when asking questions like this!
how many wires have you got.Main oven if of the fan type tend to have only 3.
1 earth,1 live, 1 neutral.the live and neutral can go either way and to identify the earth wire it should be the one connected to the earth terminal or the chassis at some point.this connects to the body of the element

ck
October 2011