Trouble Shooting - Brother PQ1500SL Operation Manual

Trouble Shooting

✽ Before taking your sewing machine in for service, check the following chart.
Upper threading is not
Thread
threaded correctly.
Breakage
Re-thread machine
properly.
Bobbin thread is not passing
Bobbin Thread
correctly from bobbin case.
Breakage Reinsert bobbin
properly.
Needle is not inserted
Skipped
correctly.
Stitches
Reinsert.
Fabric
Threading is incorrect.
Puckers
Rethread machine.
Fabric Won't Feed
Stitch length is too short.
Properly or Irregular
Adjust stitch length.
Stitches
Upper threading is
Loop in
incorrect.
Re-thread machine
Seam
properly.
Needle is not attached
Needle
correctly.
Breakage
Reattach.
Sewing Machine
The power isn't on.
Doesn't Run
Turn the power on.
The area under the needle
Machine is
plate needs to be cleaned.
Clean feed dog and
Noisy
bobbin case.
Needle is not raised
Automatic Needle
all the way up.
Threader Doesn't
Turn hand wheel to
Work
raise needle.
Needle is not properly
Thread Cutter
inserted.
Doesn't Work
Reinsert.
Thread is getting tangled.
Rethread machine.
Clean bobbin case and under
10 9-11.20
needle plate. Oil the machine.
Thread is getting tangled.
Rethread machine.
Clean bobbin case and
9 9-11.20
under needle plate.
Wrong needle.
See chart on p.12 to choose the
needle that best fits your
12
6
fabric-thread combination.
Wrong needle for the fabric
and thread you are using.
See chart on p.12 to choose the
needle that best fits your
9-11 12
fabric-thread combination.
Pressure of sewing foot is
too weak.
Increase foot pressure.
3 4
Thread is not passing through
bobbin case correctly.
Reset bobbin case.
10 9
Wrong needle.
Change needles.
6 6
Machine's not plugged in.
Check to make sure the
3
3
machine's plugged in.
Machine is out of oil.
Oil the machine.
20 20
Wrong needle for the
thread you're using.
See chart on p.12.
12
3
Wrong needle.
See chart on p.12 to choose the
needle that best fits your
6 12
fabric-thread combination.
Improper fabric/needle/
Upper thread tension is
thread combination.
too high.
See chart on p.12 for the right
Reduce tension. needle to use with your
12
fabric and thread.
Bobbin case is scratched.
Bobbin tension is too high.
Remove needle plate and
Reduce tension.
12 check bobbin case.
Needle is bent, or tip is Area under needle
dulled. plate needs to be cleaned.
Clean feed dog and bobbin
Change needles.
6
case. Oil the machine.
Upper thread tension is
Bobbin tension is too high.
too high.
Reduce tension. Reduce tension.
12
Sewing heavyweight fabric with
feed dogs in lightweight fabric
Thread is getting tangled.
position.
Rethread machine. Clean needle
Adjust feed dogs.
5
plate and bobbin case.
Improper fabric/needle/
thread combination.
See chart on p.12 for the right
needle to use with your
12
fabric and thread.
Improper fabric/needle/
You're pulling the fabric
thread combination.
too hard.
See chart on p.12 for the right
Pull the fabric
needle to use with your
12
more gently.
fabric and thread.
The foot controller has
Machine is out of oil.
come unplugged.
Clean and oil the
Reattach foot controller.
3 machine.
Hook of needle threader doesn't Using the automatic needle
pass through eye of needle. threader incorrectly.
Check to make sure the Check the use of the auto-
hook isn't bent. matic needle threader.
Needle is bent, or tip is Area under needle plate
dulled. needs to be cleaned.
Clean feed dog and
Change needles.
6
bobbin case.
Bobbin case is scratched.
Remove needle plate and
12
check bobbin case.
Machine is not threaded
properly.
Rethread machine.
20 9-11
You're sewing a lightweight fabric with
feed dogs in heavyweight position.
Adjust feed dogs.
12 5
9-11.20
14-17
The automatic safety
device has operated.
20
10
Upper threading is
incorrect.
Rethread.
20 10
21