How to put it right; The sewing ; machine does - Page 48

Brother ST371HD Use and Care Manual

Table of Contents

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APPENDIX   

47

TROUBLESHOOTING

If the machine stops operating correctly, check the following possible problems before requesting service. You can 
solve most problems by yourself. If you need additional help, the Brother Solutions Center offers the latest FAQs and 
troubleshooting tips. Visit us at “ http://solutions.brother.com ”. If the problem persists, contact your dealer or the 
nearest authorized service center.

Symptom

Possible cause

How to put it right

Page

The sewing 

machine does 

not work.

The main power switch is turned off.

Turn on the main power switch.

7

The bobbin winder shaft is pushed to the 

right.

Move the bobbin winder shaft to the 

left.

16

You have not used the foot controller 

properly.

Use the foot controller properly.

7

Fabric being 

sewn with the 

machine 

cannot be 

removed.

Thread is tangled below the needle plate.

Lift up the fabric and cut the threads 

below it, and clean the race.

45

The needle 

breaks.

The needle is incorrectly installed.

Correctly install the needle.

7

The needle clamp screw is loose.

Use a disc-shaped screwdriver to firmly 

tighten the screw.

8

The needle is bent or blunt.

Replace the needle.

7

The upper thread was not threaded 

correctly.

Correct the upper threading.

20

You have not used the right combination of 

fabric, thread and needle.

Choose a thread and needle that are 

appropriate for the type of fabric. 

26

The presser foot you are using is not 

appropriate for the type of stitch that you 

want to sew.

Attach the presser foot that is correct 

for the type of stitch that you want to 

sew.

The upper thread tension is too tight.

Loosen the upper thread tension.

31

You are pulling the fabric too much.

Lightly guide the fabric.

You have not fitted the spool properly.

Fit the spool properly.

16, 29

The area around the hole in the needle 

plate or the presser foot is scratched.

Replace the needle plate.

Contact your retailer or the nearest 

authorized service center.

The bobbin case is scratched.

Replace the bobbin case.

Contact your retailer or the nearest 

authorized service center.

You have not used a bobbin that has been 

designed for this machine.

Use a bobbin that has been designed 

for this machine.

15

The upper 

thread 

breaks.

You have not threaded the upper thread 

properly. (For example, you have not fitted 

the spool properly, or the thread has come 

out of the guide above the needle.)

Correct the upper threading.

20

There are knots or tangles in the thread.

Remove any knots or tangles.

The needle is not appropriate for the thread 

you are using.

Choose a needle that is appropriate for 

the type of stitch. 

26

The upper thread tension is too tight.

Loosen the upper thread tension.

31

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