1: The yarn feeder switcher does not return.
1: Check whether the electromagnet slides normally.
Two: No needles.
1: Check whether the groove of the needle plate is too tight, check whether the needle selector of the needle selector is biased and need to be corrected, and whether the needle is deformed or lost.
Three: black screen.
1: Check whether the connection of the display is normal and whether the display is broken.
Four: Intermittent yarn feeder does not feed yarn.
1: Check whether the switch of the yarn feeder can be turned on and whether the yarn feeder is broken.
Five: The fuse is burned out.
1: Change the fuse.
Six: The main motor shaker has no ready signal.
1: Check whether the power supply of the main servo is normal, whether the connection between the main control board and the main server is normal, and turn it off and restart it.
1: Change the signal line of the monitor and change the main control board.
Eight: The machine head CPU is invalid.
1: Increase the reversal distance, turn it off and start it again.
Nine: Chip bus error.
1: Check whether the head +5V is normal, and change the head signal line.
Ten: The chip sends data overtime.