21
Malfunction
Cause
Solution
Machine does not
run or runs very
slowly
Not connected correctly or
there is no power
Connect to the power correctly
(page 7)
Batteries are installed
incorrectly
Reinstall
the
batteries making
sure they are correct way
around (page 7)
Batteries are low
Use new batteries(page 7)
Missing stitches
Needle is inserted
incorrectly
Needle bent or blunt
Upper thread not
threaded correctly
Stitches too loose
or uneven
Upper thread not
threaded correctly
Upper thread too loose or
too tight
Fail to bring up
the lower thread
Lower thread running out
Upper thread or lower
thread not threaded
correctly
Thread breaks
Needle is inserted
incorrectly
Upper thread or lower
thread not threaded
correctly
Needle bent
Upper thread tension too
high
Upper thread tension too
high
Fabric too thin
Thread
is
knotted
Gathering of
fabric
Re-insert the needle (page 19)
Remove and re-insert a new
needle (page 19)
Re-thread the needle (page 12)
Re-thread the needle (page 12)
Adjust
upper
thread tension
(page 16)
Replace
with
new
full
bobbin
(
page
10
)
Re
-
thread
the
upper
or
lower
thread
(
page
11
,
12
,
13
)
Re-insert the needle (page 19)
Re
-
thread
the
upper
or
lower
thread
(
page
11
,
12
,
13
)
Remove and re-insert a new
needle (page 19)
Cut off the knotted thread, and
re-thread
Adjust
upper
thread tension
(page 16)
Adjust
upper
thread tension
(page 16)
Lay
some
interfacing under
the material
Faults and solutions
