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Ender 3 Quit working. Help?!

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So yesterday I had a print stop mid way thru. Like the printer froze, pressing the button/wheel did nothing. Same thing happens tonight, Freezes up after maybe 1 minute of printing. Now, it will not recognize my sd card (tried a different sd card also) and the fan above the sd card slot turns on and off randomly. I wonder if the pcb in there is defective? I have had this machine for 6 months with no issues. Any advice? Thank you

First thing to do is open up the case and check that nothing has come loose, same with the power supply

Don't see anything out of the ordinary. The connectors all have a bead of glue holding them tight. I guess I just wait and see if customer service replies to me.