** it does have a push in switch on the door opening, doesn't work, i dont see how it will come out **
Typical oven door light switches snap into place from the front. An existing one can usually be pried out from the front using a putty or butter knife between its base and the oven liner(once power has been removed from the range!). The wires just attach to the switch with push on spade connectors.
You can see a popular G.E. range oven door light switch at the following link: