Makerbase Mks Dlc V21 Manual Link |best| Info

| Symptom | Likely Cause | Manual Reference (section) | |-----------------------------|-----------------------------------------------|----------------------------| | USB not detected | Missing STM32 DFU driver or USB cable | §4.1 – USB interface | | TMC2209 not stepping | Wrong UART address or RSENSE setting | §6 – Jumper config | | Hotend won’t heat | Incorrect TEMP_SENSOR pin or MOSFET blown | §5 – Heater wiring | | BLTouch fails to deploy | Wrong servo pin mapping | §8 – Probe pinout | | ESP8285 Wi-Fi not working | Firmware baud rate mismatch (default 115200) | §9 – Wi-Fi module | | Random resets during print | Underpowered PSU or noisy 5V rail | §2 – Power requirements |

See – The board uses a PTC fuse rated for 15A total. Do not exceed this. With a 24V power supply, your bed heater should not draw more than 10A-12A, leaving headroom for motors and hotend. makerbase mks dlc v21 manual link