Hi, my printer was working fine,
then when i starting printing again, the bed is heating up but not the extruder (stay at 25). I checked the wires, everything seems to be ok, i even took another thermistor, doesn't work. I need help.
Did you check the voltage at the resistor (the heating resistor - not the thermistor)
Also, just curious why you tried a different thermistor? The thermistor has nothing to do with the heating. It measures the heat being produced by the other resistor.
sorry i meant the heating resister not thermistor, now, it is strange when i move the wires, it start heating up but NEVER stops ever when i click off in pronterface!