Hi,
This problem does not really affect my prints, but my curiosity would come down if I understand why this is happening.
I am currently using a P3Steel printer running with Arduino Mega, RAMPS 1.4 and Marlin Firmware.
When my extruder is cold, the min temp showed on the LCD display is always 76º. It´s never going below that even if I unplug the thermistor, but when it gets hot the temperature is shown correctly, printing with good quality.
I guess this is a marlin configuration I dont have correct, but I´ve searched and looked into the code and still not knowing why this is happening. I am affraid that eventualy the thermistor cable will fail and the MINTEMP error wont´t work, giving me an extreme heat to the extruder and the consecuences after that...
Thanks in advance!
This problem does not really affect my prints, but my curiosity would come down if I understand why this is happening.
I am currently using a P3Steel printer running with Arduino Mega, RAMPS 1.4 and Marlin Firmware.
When my extruder is cold, the min temp showed on the LCD display is always 76º. It´s never going below that even if I unplug the thermistor, but when it gets hot the temperature is shown correctly, printing with good quality.
I guess this is a marlin configuration I dont have correct, but I´ve searched and looked into the code and still not knowing why this is happening. I am affraid that eventualy the thermistor cable will fail and the MINTEMP error wont´t work, giving me an extreme heat to the extruder and the consecuences after that...
Thanks in advance!