Turn on the machine after power on, and the hot bed automatically heats up.
Make sure the firmware is correct, and re-flash the firmware (make sure the mainboard firmware and the screen firmware are refreshed together). If the first step is invalid, it is mostly an issue with the motherboard, and you can directly replace the motherboard.
Turn on the machine after power on, and the nozzle automatically heats up.
- Make sure the firmware is correct, and you can re-flash the firmware (make sure the mainboard firmware and screen firmware are refreshed together)
- Without a heating command, measure whether there is 24V voltage on the heating tube pin on the mainboard (unplug the cable and measure directly to see if there is 24V); if there is 24V, replace the mainboard (in most cases, the MOS line of the mainboard is damaged). If there is 24V when the cable is plugged in, replace the cable.
There is no response when the machine is turned on after power on
- Check whether the power supply is normal, whether the fuse is burnt out; if it is burnt out, replace the power supply.
- Check whether the nozzle dissipation fan of the nozzle rotates. The rotation indicates that the main board is normal; in that case, check whether the cable is tightly inserted in place.
- Remove the bottom plate of the machine, check whether the internal wiring of the machine is loose, and check whether the power light is on. If it is on, it is normal. If it is not on, measure whether there is voltage (115/220V) at the AC port. If not, it is a power problem. Replace the power supply. Then check whether the mainboard signal blue light is on normally. If it is on, proceed to measure the V pin and G pin of the display interface on the mainboard side to see if there is 5V voltage; if there is, the problem lies in the screen and wiring, replace them; if there is no 5V voltage, the problem lies in the motherboard, replace it. If the main board signal light is not on, measure whether there is 24V voltage at the power port of the main board; if not, replace the main board (generally there is a “24V” sign near the port).