When I get within 10 degrees of my target temperature, the heated bed stops heating, and then I get the error mentioned in the title.
my config files are attached to this thread. Also running marlin 2.0 nightly build on a ramps and arduino mega 2560.
I noticed that the value of the constant PID_FUNCTIONAL_RANGE in my configuration is 10 (by default), and that is the same value as the gap between the actual temperature and the target temperature when I get the error.
