Chapter 10 Troubleshooting

Symptom

Measures

 

 

Lower shaft motor overcurrent error

• Is the red LED for the BC PCB off?

occurs.

If not, refer to the block diagram showing the cable connections and

 

check to see if the connection from the BC PCB to the main PCB is

 

proper.

•Check to see if connection from the lower shaft motor to the BC PCB of the bed on BC PCB whose red LED is off is proper.

Replace the harness or the lower shaft module if a short circuit occurs due to line insertion.

•Measure the resistance values of pin 1 and pin 2, pin 2 and pin 3, pin 3 and pin 4, pin 4 and pin 5, and pin 5 and pin 1 at the connector of the

lower shaft motor with the tester and check to see if they are approximately 2.6Ω.

Replace the faulty lower shaft module with a new one.

•Replace the BC PCB with a new one.

Thread trimming motor zero point

• Is lint clogged between the travelling blades?

error occurs.

Remove it.

•Is the thread trimming motor operating?

If so, refer to the block diagram showing the cable connections and check to see if connection from the thread breakage sensor to the main PCB is proper. Also adjust the thread breakage sensor PCB. (Refer to "Replacing thread breakage sensor PCB.)

•If it is not operating, refer to the block diagram showing the cable connections and check to see if connection from the thread trimming motor to the main PCB is proper.

•Check to see if connection from connector P3 of the main PCB to connector P9 of the power supply PCB in the control box is proper.

•Check fuse F6 on the power supply PCB in the control box.

If it is blown, replace it with a new one. If it is blown again, replace the power supply PCB.

Power frequency error occurs.

• Check to see if connection from connector P16 of the main PCB to

 

connector P10 of the power supply PCB in the control box is proper.

 

• Refer to the block diagram showing the cable connection and check to

 

see if connection from connector P26 of the power PCB in the control

 

box to connector P7 of the power supply PCB in the power supply base

 

is proper.

 

• Check fuse F3 on the power supply PCB in the power supply base.

 

If it is blown, replace it with a new one. If it is blown again, there is

 

a fault somewhere in the 24v system circuit.

Wiper out error occurs.

• Does the wiper on the error head remain projected?

 

If the wiper is tangled with a thread, remove it. If the wiper does not

 

return smoothly, adjust it.

•Enter the solenoid test mode and check the displayed value on the panel.

If it is not S-00, check to see if connection from the wiper sensor to the head PCB is proper. Replace the wiper sensor with a new one. Replace the head PCB with a new one.

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BES-941BC • BES-1241BC

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BES-941BC specifications

The Brother BES-941BC is a cutting-edge embroidery machine that showcases the perfect blend of innovation and user-friendly design. Geared towards professional embroiderers and serious hobbyists alike, this machine is engineered to enhance productivity while ensuring top-quality results.

One of the standout features of the BES-941BC is its impressive embroidery area of 10.2" x 7.9", allowing users to work on larger projects without the hassle of constant repositioning. This spacious work area is complemented by an advanced, high-speed embroidery capability that can reach up to 1,000 stitches per minute, making it possible to complete intricate designs in a fraction of the time.

Incorporating state-of-the-art technology, the Brother BES-941BC features a color touchscreen interface that provides intuitive navigation through its extensive menu options. Users can easily select designs, customize colors, and preview their creations before starting the embroidery process. Additionally, this machine supports wireless connectivity, enabling effortless file transfers from a computer or mobile device.

The BES-941BC comes pre-loaded with a diverse selection of built-in embroidery designs and fonts, catering to a wide range of styles and preferences. For those who wish to personalize their projects further, the machine also supports USB connectivity, allowing users to import additional designs from external sources.

Another noteworthy characteristic is the machine's advanced thread trimming and auto needle threading functions. These features minimize manual intervention, allowing users to focus more on creativity and less on tedious tasks. Furthermore, the BES-941BC is equipped with automatic tension adjustment, ensuring consistent quality and reducing the risk of errors during intricate stitching.

With its robust construction and reliable performance, the Brother BES-941BC is designed to handle high-volume embroidery tasks, making it suitable for small businesses as well as individual crafters. The machine is backed by a comprehensive warranty and customer support, providing peace of mind for users.

In conclusion, the Brother BES-941BC stands out as a versatile and powerful embroidery machine. With its ample embroidery area, high-speed stitching capabilities, advanced technology features, and ease of use, it is ideal for anyone looking to elevate their embroidery projects to the next level. Whether you're creating custom apparel, promotional items, or personalized gifts, this machine offers the tools necessary for achieving professional-quality results.
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