Troubleshooting
72
2020-09 EN 5220105.00A.04
Fault Cause Solution
Upper thread breaks
Incorrect needle/thread
combination.
> Match the needle with the thread size.
Upper thread is too tight. > Reduce the upper thread tension.
Incorrectly threaded. > Rethread.
Poor quality thread. > Use quality thread.
The stitch plate or the hook tip is
damaged.
> Contact a specialized bernette dealer to have the
damages repaired.
> Replace the stitch plate.
Lower thread breaks
The bobbin is not inserted
correctly.
> Remove and reinsert the bobbin and pull on the thread.
– The thread should run easily.
The bobbin is wound incorrectly. > Check bobbin and thread correctly.
The stitch hole in the stitch plate
is damaged.
> Contact a specialized bernette dealer to have the
damages repaired.
> Replace the stitch plate.
Needle blunt or bent. > Replace the needle.
Needle breaks
The needle is incorrectly inserted. > Insert the needle with the flat side to the back as far up
as it will go into the needle holder and tighten the
screw.
The fabric has been pulled. > Feed the fabric evenly.
Thick fabric has been pushed. > Use a presser foot that is suitable for thick fabric.
> Use the height compensating tool when sewing over a
thick seam.
The thread is knotted. > Use quality thread.
The machine doesn't start
The machine is switched off. > Switch the machine on.
The machine is not plugged in. > Plug in the power plug.
The machine is defective. > Contact a specialist bernette dealer.
Unfavorable room temperature. > Place the machine in a warm room one hour before use.
> Connect the machine and switch it on.
The presser foot is raised. > Lower the presser foot.
Neither the sewing light nor
the light on the free arm
lights up
The sewing light is defective. > Contact a specialist bernette dealer.
To Next Page
Loading...
