If the machine does not start when you press the Start/Stop button or press the Foot controller, check the following possible causes and solutions.

• The bobbin winder shaft is pushed to the right.
  
  Slide the bobbin winder shaft to the left until it snaps into place.
  
  Refer to "How do I wind the bobbin?".
  
   
• There is no stitch selected.
  
  Select a stitch pattern.
  For details on selecting a stitch pattern, refer to "Basic procedure to sew stitches".
  
  
   
• Presser foot is not lowered.
  
  Lower the presser foot.
  
  Refer to "Basic procedure to sew stitches".
  
  
   
• Start/Stop button was pressed with the foot controller attached.
  
  When the foot controller is connected, you cannot use the Start/Stop button.
  Remove the foot controller to use the Start/Stop button, or use the foot controller to operate the machine.
  
  
   
• The Start/Stop button was pressed while the machine is set to the mode to adjust the zigzag stitch width with the speed control lever. ([Width Control] is set to [ON] in the machine's setting screen).
  
  When [Width Control] is set to [ON] in the setting screen, you cannot use the Start/Stop button.
  Set the [Width Control] to OFF in the settings screen to use the Start/Stop button, or use the foot controller to operate the machine.
  
  
  Refer to "When the speed controller is set to control the zigzag stitch width, the "Start/Stop" button does not operate." message appears on the LCD. What does it mean?".
  
   
• Start/Stop button was pressed with the buttonhole lever is down while a stitch other than a buttonhole stitch or a bar tack stitch is selected.
  
  Raise the buttonhole lever before continuing the operation.

  (1) Buttonhole lever

  
   
• Start/Stop button was pressed with the buttonhole lever is up while a buttonhole stitch or a bar tack stitch is selected.
  
  Lower the buttonhole lever before continuing the operation.

  (1) Buttonhole lever

  
   
• The operation buttons and keys are locked by being set to the presser foot/needle exchange mode.
  
  Press the Presser foot/Needle exchange key  to unlock the keys and buttons.