North Ireland 0871 37 61 020 Rep. Ireland 1-800-992 508
Web Support www.medion.co.uk
Model Number: MD 11871
49
Troubleshooting 11
If faults occur, please read the operating instructions to determine whether you
have followed all the instructions correctly. Please only contact our customer
services if none of the solutions provided is successful.
Malfunctions Cause Remedy
Upper thread is not guided
correctly.
See page 18
Upper thread tension is too
tight.
See page 21
Needle is bent or dull.
Insert a new
needle.
Needle is not inserted correctly. See page 14
Fabrics are not pulled backward
after sewing.
See page 27
Upper thread breaks.
Thread thickness does not fit to
the needle.
See page 14
Lower thread is not threat
properly in the shuttle hook.
See page 15
Fibres block the bobbin case
handle.
Clean the
bobbin case.
Lower thread breaks.
Bobbin case is damaged and
does not work.
Change the
bobbin case.
Needle is not inserted correctly. See page 14
Needle is bent or dull.
Insert a new
needle.
Needle clamp screw goes loos.
Screw the
needle clamp
screw again.
Upper thread tension is too
tight.
See page 21
Needle breaks.
Fabrics are not pulled backward See page 27
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