Maybe my prev post too long CAN A HEATER ON HOT END GO BAD??

[Bruce19]

These two feel Metalic like crimped wires. Pulled apart have same resistance of 19.5 ohms. I can imagine that close to heater they heat up a bit and move closer? I have some tapcan tape Im going to put a piece between those two. And in answering your question did this start when thermistor was changed? NO, I changes thermistor thinking it was the culprit. It started lil after changing 235 x 235 carriage bed to 300 x 300 but still used smaller bed heater (235 x 235) for the time being as didn't yet haf full size heat bed