Quote Originally Posted by Roxy View Post
We are near the end of RC-7. I'm not sure that I remember any thermal issues in RC-7. I do remember some issues in RC-6. The only thing concerning thermal issues lately is this thread speculating there may be a bug in the way the PID algorithm works: https://github.com/MarlinFirmware/Marlin/issues/4881 If you are having problems with your heaters doing the right thing, please let us know!!!
So far my only problems have been with the print bed heater, and I (think I) have it on a bang-bang setup, not PID. I have my bed heater connected through a relay, so I don't think PID or PWM would be a good option. The issue is somewhat rare, though. Maybe only once in 7-8 prints.