Built in oven would shut down: fault code F-4

A few years previously I had this same problem and a PROFESSIONAL had replaced the sensor.
Thus this time I knew what the failure was and obtained the sensor from Part Select. Having observed the PROFESSIONAL replace the sensor before; I followed his easy technec only to learn that when the sensor was pulled from the aft wall of the oven that the wires had deteriorated and the plastic plug melted. Therefore it was neccessary to remove the oven from the wall cabinet. Then I removed the panel from the back outside of the oven, cut back the wires and because the kit from Part Select contained additional connectors was able to splice in a replacement connector. Installed the new sensor and reinstalled the oven. LESSON LEARNED; when the PROFESSIONAL had replaced the sensor he had failed to feed the wiring and plug back past the insulated chamber, directly behind the oven, into the cool area assessable by the panel on the aft side of the oven thus the plug and wires were exposed to the heat of the oven. What would commonly be a few minutes job turned into an afternoon project.