¶ Reason: When you click to print, the nozzle and heating bed will be heated, so possible reasons include firmware problems, insufficient power, short circuit of the heating rod or the heating bed.
¶ 3. Separately heated nozzles and heated beds
¶ (1) If the nozzle is heated alone, the screen will remain blank. When the hot bed is heated alone, the screen will remain blank, which means the heating rod is short-circuited. First disconnect the heating rod cable on the motherboard, and then heat the nozzle separately. If the touch screen does not go out, replace the heating rod.
¶ (2) When heating the hot bed alone, the screen remains blank. When the nozzle is heated alone, the screen remains blank. It is likely that the hot bed is short-circuited or the power supply is insufficient. Disconnect the hot bed cable on the motherboard and try again. For example If the touch screen no longer goes out when heating the hot bed alone, the hot bed is damaged or short-circuited and needs to be replaced.
