I would appreciate if someone could help me with this issues.
1 - Why when I hit the Set button in Pronterface the heat does not heat? The LCD show the value setted but the Ramps do not start send current to heat. BTW, if I use the LCD fuction Preheat PLA or Preheat ABS it works.
2 - I am using a 12V 40W heater. When I use the function Preheat ABS (setted to 250 C max) the heat start heating and the sensor shows the progress but when the temperature hit 250°C the setted value goes to zero and the heat temperature continues rise up to 350 (when I shutted it down). Why the firmware do not stop the heat when it hit the presseted value?
Thank in advance.