@tinken I was able to replace the Capton tape and tape the thermistor under the bed, very carefully (Blue arrow on right). I didn't want to cut up the bed surface to access those two center mounting screws.
I also made a strain-relief (Blue arrow on left) because those wires kept pulling back, and then the thermistor would come loose. This happened six months ago, and now I know electrical tape will not hold up under a heated bed!