APPENDIX——————

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 main power switch is turned off.

Turn on the main power switch.

7

 

 

 

 

The sewing

The bobbin-winder shaft is pushed to the

Move the bobbin-winder shaft to the

14

machine does

right.

left.

 

not work.

 

 

 

You have not used the foot controller

Use the foot controller properly.

7

 

 

properly.

 

 

 

 

 

 

 

Fabric being

 

 

 

sewn with the

 

Lift up the fabric and cut the threads

 

machine

Thread is tangled below the needle plate.

45

below it, and clean the race.

cannot be

 

 

 

 

 

removed.

 

 

 

 

 

 

 

 

The needle is incorrectly installed.

Correctly install the needle.

7

 

 

 

 

 

The needle clamp screw is loose.

Use the oval screwdriver to firmly

8

 

tighten the screw.

 

 

 

 

 

 

 

 

The needle is bent or blunt.

Replace the needle.

7

 

 

 

 

 

The upper thread was not threaded

Correct the upper threading.

17

 

correctly.

 

 

 

 

 

 

 

 

You have not used the right combination of

Choose a thread and needle that are

22

 

fabric, thread and needle.

appropriate for the type of fabric.

 

 

 

 

 

 

 

The presser foot you are using is not

Attach the presser foot that is correct

 

 

appropriate for the type of stitch that you

for the type of stitch that you want to

The needle

want to sew.

sew.

 

 

 

 

breaks.

The upper thread tension is too tight.

Loosen the upper thread tension.

27

 

 

 

 

 

 

You are pulling the fabric too much.

Lightly guide the fabric.

 

 

 

 

 

You have not fitted the spool properly.

Fit the spool properly.

18, 25

 

 

 

 

 

The area around the hole in the needle

Replace the needle plate.

 

 

Contact your retailer or the nearest

 

plate or the presser foot is scratched.

 

authorized service center.

 

 

 

 

 

 

 

 

 

 

Replace the bobbin case.

 

 

The bobbin case is scratched.

Contact your retailer or the nearest

 

 

authorized service center.

 

 

 

 

 

 

You have not used a bobbin that has been

Use a bobbin that has been designed

13

 

designed for this machine.

for this machine.

 

 

 

 

 

 

 

You have not threaded the upper thread

 

 

 

properly. (For example, you have not fitted

Correct the upper threading.

17

 

the spool properly, or the thread has come

 

 

 

The upper

out of the guide above the needle.)

 

 

 

 

 

thread

There are knots or tangles in the thread.

Remove any knots or tangles.

breaks.

 

 

 

The needle is not appropriate for the thread

Choose a needle that is appropriate for

22

 

 

you are using.

the type of stitch.

 

 

 

 

 

 

 

The upper-thread tension is too tight.

Loosen the upper thread tension.

27

 

 

 

 

47