Pfaff C1100 Pro

91
Stitches are
distorted
1.The needle thread tension is too tight.
2.The needle thread is not threaded
correctly.
3.The needle is too heavy for the fabric
being sewn.
4.The stitch length is too long for the fabric.
5.The presser foot pressure is not correctly
adjusted.
1.The correct presser foot is not used.
2.The needle thread tension is too tight.
3.The stitch length is not suitable for the
fabric being sewn.
4.Feed balancing dial is not set properly.
1.Lint or oil have collected on the hook or
needle bar.
2.Poor quality oil has been used.
3.The needle is damaged.
1.Poor quality thread.
2.The bobbin case is threaded wrong.
3.Fabric has been pulled.
Cause
5.Thread is caught in the hook.
4.Slight humming sound coming from
internal motor.
6.The feed dogs are packed with lint.
1.Thread is caught in the hook.
2.The feed dogs are packed with lint.
1.The machine is not turned on.
2.The START/STOP button or foot control
pedal was not pressed.
3.The presser foot lever is raised.
4.A thread is caught in the hook race.
5.The machine is not plugged in.
Seam
puckering
1.Select the correct foot.
2.Loosen the thread tension .
3.Change stitch length.
4.Adjusting stitch balance.
1.Loosen the thread tension.
2.Rethread the machine.
3.Choose a needle to match the thread and
fabric.
4.Change the stitch length.
5.Adjust the presser foot pressure.
The
machine
jams
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
The
machine is
noisy
1.Clean the hook and feed dog.
2.Only use good quality sewing machine
oil.
3.Replace the needle.
Uneven
stitches,
uneven feed
1.Select a better quality thread.
2.Remove the bobbin case, then thread
and reinsert correctly.
3.Do not pull on the fabric while sewing,
let it be taken up by the machine.
Problem
Correction Reference
4.Normal.
Remove the upper thread and bobbin
case, turn the handwheel backwards and
forwards by hand and remove the thread
remnants.
page 42
page 27
page 41
page 43
page 45
page 92
page 42
page 43
page 44
page 88
page 88
--
page 33
--
page 41
page 26
--
The sewing
machine
doesn't
operate
1.Turn on the machine.
2.Press the START/STOP button or the
foot control pedal.
3.Lower the presser foot lever.
4.Remove the upper thread and bobbin
case, turn the handwheel backwards
and forwards by hand and remove the
thread remnants.
5.Connect the power cord plug to the
electrical outlet.
page 19
page 8/9
page 36
page 88
page 18
page 88
APPENDIX
TROUBLE SHOOTING