Printing problem on anet a3

[User_7990]

My prints start out okay and print about 3mm of the print, then the extruder moves up about 1cm and then just try’s to print in mid air following the print pattern.

Any idaes?

Regards
Tony

[Aad_Koene]

Look into the G-code file, there you will find the faulty line.
Delete it and print again.