It's odd that you seek a wiring diagram for a switch - switches are very simple - power comes in and power goes out.
You do not say why you want a wiring diagram - what particular problem the machine has.
Very often with a cleaner the wires get broken in two inside the power cable at the plug end. You might consider cutting away the plug and a few inches of cable and just fitting a new plug - cheap - quick and easy.
Good Luck...
October 2015
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