10 = Extruder overheating (protection temperature reached)
11 = Minimum temperature of extruder 1 reached
12 = Maximum temperature of extruder 1 reached
13 = Minimum temperature of extruder 2 reached
14 = Maximum extruder 2 temperature reached
15 = Minimum bed temperature reached
16 = Maximum bed temperature reached
20 = SD card reading error
30 = Endstop error