Introduction
The Brother SE400 is a versatile combination machine designed for both sewing and embroidery. It offers a wide range of features to enhance your creative projects, from basic garment construction to intricate embroidery designs. This manual provides essential information to help you get started and make the most of your machine.
Key Features
- 185 Unique Built-in Stitches: Includes 130 utility and decorative stitches, 8 styles of auto-size buttonholes, and 55 alphanumeric stitches for diverse sewing projects.
- Automatic Needle Threader: Simplifies the threading process, saving time and reducing eye strain.
- Quick-Set Drop-in Top Bobbin: Ensures smooth and jam-resistant bobbin operation.
- Backlit LCD Touch Screen Display: Provides easy access to stitch selections, design editing features, and built-in tutorials.
- Computer Connectivity: Allows for machine updates and easy import of embroidery designs using industry-standard .pes files.
- 7-Point Feed Dogs: Facilitates smooth and consistent fabric feeding.
- Brightly Lit Workspace: Illuminates the needle area for improved visibility.
- Easy Bobbin Preparation: Features a convenient bobbin-winding system for quick setup.
- 4" x 4" Embroidery Area: Provides ample space for a variety of embroidery designs.
- 70 Built-in Embroidery Designs, 120 Frame Pattern Combinations, and 5 Lettering Fonts: Offers a rich selection for personalizing projects.
Setup Guide
Unpacking and Initial Inspection
Carefully remove the machine and all accessories from the packaging. Verify that all listed accessories are present. Keep the packaging for future transport or storage.
Power Connection
Place the machine on a stable, flat surface. Connect the power cord to the machine's power input and then to a suitable electrical outlet. Ensure the power switch is in the OFF position before connecting.

Image: Rear view of the Brother SE400 machine, highlighting the power input and USB port for computer connectivity.
Threading the Machine
Follow the numbered guides on the machine for proper upper thread tension. The automatic needle threader can be engaged to quickly thread the needle. For the bobbin, use the quick-set drop-in bobbin system. Wind the bobbin according to the instructions provided in the full operation manual.

Image: Close-up view of the Brother SE400's bobbin area, showing the clear bobbin cover and the threading path diagram printed on the machine's surface.
Operating Your Machine
Basic Sewing Operations
Turn on the machine. Use the backlit LCD touch screen to select your desired stitch from the available 185 options. Adjust stitch length and width as needed. Place your fabric under the presser foot and begin sewing using the foot controller or start/stop button.

Image: A detailed view of the Brother SE400's LCD touch screen, showing various stitch patterns and settings available for selection.
Embroidery Operations
Attach the embroidery arm and hoop to the machine. Secure your fabric within the 4" x 4" embroidery hoop, ensuring it is taut. Select a built-in design or import one via USB. The machine will guide you through color changes and design progress. The bright workspace light ensures clear visibility during embroidery.

Image: The Brother SE400 machine with the embroidery arm and a 4x4 inch hoop attached, demonstrating its embroidery setup.

Image: A close-up shot of the Brother SE400 in action, embroidering a blue design onto white fabric held securely in the embroidery hoop.
Using the LCD Touch Screen
The intuitive LCD touch screen allows for easy navigation and customization. Tap on icons to select stitch types, adjust parameters like stitch length and width, and access various machine functions. The screen also provides helpful prompts and tutorials.
Video: Demonstration of the Brother SE400's LCD touch screen, showing how to select different stitch functions and adjust settings. This video highlights the user-friendly interface for both sewing and embroidery.
Video: An overview of the Brother SE400 Combination Computerized Sewing and 4x4 Embroidery Machine, showcasing its dual functionality and ease of use for various projects.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your Brother SE400 machine. Always disconnect the power cord before performing any maintenance.
- Cleaning: Regularly clean the bobbin case, feed dogs, and needle plate area to remove lint and dust. Use the brush provided in your accessory bag.
- Needle Replacement: Replace the needle frequently, especially when working with different fabric types or if the needle becomes dull or bent. Always use the correct needle type for your project.
- General Care: Keep the machine covered when not in use to protect it from dust. Avoid using harsh chemicals for cleaning; a soft, damp cloth is sufficient for exterior surfaces.
For detailed cleaning instructions and maintenance schedules, please refer to the comprehensive operation manual.
Troubleshooting Common Issues
If you encounter any issues with your Brother SE400, consult the following common troubleshooting tips. For more complex problems, refer to the full operation manual.
- Thread Breaking: Check if the machine is threaded correctly, the needle is inserted properly and not bent, and the thread tension is appropriate for your fabric. Ensure you are using quality thread.
- Skipped Stitches: This often indicates a dull or incorrect needle for the fabric. Replace the needle and ensure it is inserted all the way up.
- Bobbin Issues: If the bobbin thread is tangling or not feeding correctly, re-wind the bobbin, ensure it's inserted correctly into the bobbin case, and check for any lint buildup in the bobbin area.
- Machine Not Starting: Verify the power cord is securely connected and the power switch is on. Check if the presser foot is lowered and the embroidery arm (if applicable) is correctly attached.
Product Specifications
| Specification | Detail |
|---|---|
| Product Dimensions | 20.28 x 14.96 x 15.16 inches |
| Item Model Number | SE400 |
| Item Weight | 10.9 pounds |
| Brand | Brother |
| Color | White |
| Material | Metal |
| Power Source | Electric |
| UPC | 012502624950 |
Included Accessories
The Brother SE400 comes with a comprehensive set of accessories to support your sewing and embroidery needs:
- 4" x 4" Embroidery Hoop
- Embroidery Arm
- Soft Cover
- Accessory Feet: Buttonhole foot, Overcasting foot, Zipper foot, Button fitting foot, Monogramming foot, Blind stitch foot, Embroidery foot
- Embroidery Bobbin Thread
- USB Cable
- Power Cord
- Accessory Bag with: Seam ripper, Needle set, Cleaning brush, Screwdrivers (2), Touch pen, Spool caps (3), Scissors, Bobbins (3)
- English/Spanish Operation Manual

Image: A collection of sewing machine accessory feet, including a buttonhole foot, zipper foot, and embroidery foot, essential for various sewing tasks.
Warranty and Support
The Brother SE400 Combination Computerized Sewing and 4x4 Embroidery Machine is backed by a 25-year limited warranty. This warranty covers manufacturing defects and ensures long-term reliability for your machine.
Brother provides dedicated customer support through their "At Your Side Support" program, offering free technical assistance via online resources, live chat, or phone for the lifetime of your machine. For detailed warranty information and to access support, please refer to the official Brother website or the included operation manual.





