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

[Gambo]

That the heater warmed up at all puzzles me 0 ohms is a short circuit should shut the power supply down !So can that measurement be in error, if not change the heater unit . If the measurement is in error the only likely thing is a curruption of the heater control software is my view

[Bruce19]

JUST FYI Hot end heater if set it for 160 or anything less heats up as it should. When it gets above 161 danger zone LOL So Im thinking if a short then it would give warning from 1 degree. If its temp sensitive when some part heats up spmethin stops because heating stops rising and few sconds later "heater Failed Printer Stopped Please reset" I think Ill order new heater barrel