
Troubleshooting
38
Troubleshooting
Problem
Possible cause
Solution
The sewing
machine
1
does not start.
Foot pedal
6
: The foot pedal is not
properly connected.
Check the connection and
reconnect the foot pedal if
necessary.
Battery operation: The batteries
4
have been inserted incorrectly or
are empty.
Reinsert the batteries or
insert new batteries.
Electric operation: The pow-
er adapter
7
is not properly
plugged into the power outlet or
the cord is not properly connected
to the sewing machine.
Check the connections and
connect the power adapter
properly if necessary.
The power outlet is defective.
Try another power outlet.
Check the power supply
fuse.
The thread
tears.
The upper/lower thread is not
threaded properly.
Rethread the thread.
The upper/lower thread is tangled.
Rethread the thread.
The tension of the upper thread is
too high.
Reduce the tension using
the tension regulator for
the upper thread
11
.
The spool of thread or bobbin
3
was not put in place correctly.
Reposition the spool of
thread or bobbin.
The needle
2
is bent or blunt.
Change the needle.
The combination of needle size/
thread size/fabric is incorrect.
Change the needle or
thread.
A wrong bobbin was used.
Only use the supplied
bobbins.
There is a loop
in the stitching.
The thread tension is incorrect.
Adjust the upper thread
tension.
The presser foot
21
is not pressed
down.
Press the presser foot le-
ver
28
down to lower the
presser foot.