Heatbed/Extruder Starts Heating When Printer is Powered On

Updated 11 days ago ​by Tomáš Chvalina

If the heatbed and extruder starts heating instantly after the printer is powered and can't be turned off from the LCD menu, it indicates improper wiring. The power supply connectors are plugged into the heatbed and extruder Power output and vice - versa. It is an easy fix, just see the proper wiring diagram.

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