Troubleshooting - Brother PE-780D Operation Manual

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
APPENDIX

Troubleshooting

If the machine stops operating correctly, check the following possible problems before requesting service.
If the problem persists, contact your retailer or the nearest authorized service center.
Symptom
The machine is not turned on.
The start/stop button was not
pressed.
The machine does
not operate.
The presser foot lever is raised.
The embroidery unit is not
attached on the machine.
The needle is incorrectly installed. Correctly install the needle.
The needle clamp screw is loose.
The needle is bent or blunt.
The upper thread tension is too
tight.
The spool is incorrectly installed.
The area around the hole in the
needle plate is scratched, or has a
The needle breaks.
burr on it.
The area around the hole in the
embroidery foot is scratched, or
has a burr on it.
The bobbin case is scratched, or
has a burr on it.
A bobbin designed specifically for
this machine is not used.
The upper thread was not
threaded correctly (for example,
the spool is not installed correctly,
the spool cap is too big for the
spool being used, or the thread
has come out of the needle bar
The upper thread
thread guide).
breaks.
There are knots or tangles in the
thread.
The upper thread tension is too
tight.
74
Probable Cause Remedy
Turn on the machine.
Press the start/stop button.
Lower the presser foot lever.
Attach the embroidery unit.
Use the screwdriver to firmly tighten
the screw.
Replace the needle.
Loosen the upper thread tension.
Correctly install the spool.
Replace the needle plate. Contact
your retailer or the nearest authorized
service center.
Replace the embroidery foot. Contact
your retailer or the nearest authorized
service center.
Replace the bobbin case. Contact
your retailer or the nearest authorized
service center.
Incorrect bobbins will not work
properly. Only use a bobbin
designed specifically for this
machine.
Correct the upper threading.
Remove any knots or tangles.
Loosen the upper thread tension.
Reference
page 19
page 58
page 58
page 15
page 36
page 64
page 30
–
–
–
page 24
page 30
–
page 64