have 2x 3pin sockets situated behind my oven.
you lied about the 3 pin holes.Socket on the left
You know what they say about a picture.
Find the trip switch in your fuse box that turns off the oven/cooker (whatever) and see if it turns off that socket as well.
If it doesnt, switch off the sockets trips in the use box until you find the one that does.
Post back.
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