Anycubic I3 Mega (problem powering on and auto-rebooting solved)
After printing 4kg of filament the printer stopped and turned off. The power DC regulated switching power supply adaptor was still working, because I could hear the fan, but the rest of the printer turned off (mainboard, LCD screen, etc.). I opened the printer and found out that when I was moving the thermistor wires it started working again. After a while the machine either turned off or rebooted. Finally, I replaced the wires with silicone flexible ones and seems like the problem has been solved. The printer didn’t power off or reboot anymore after printing a large object for 6 hours.
After printing 4kg of filament the printer stopped and turned off. The power DC regulated switching power supply adaptor was still working, because I could hear the fan, but the rest of the printer turned off (mainboard, LCD screen, etc.). I opened the printer and found out that when I was moving the thermistor wires it started working again. After a while the machine either turned off or rebooted. Finally, I replaced the wires with silicone flexible ones and seems like the problem has been solved. The printer didn’t power off or reboot anymore after printing a large object for 6 hours.