Brother International LS-2125i Users Manual - English - Page 53

Symptom Possible cause How to put it right Reference The needle is bent or blunt. Replace the needle. page 20 You have not inserted the needle properly. Insert the needle properly. page 20 The area around the hole in the needle plate is scratched. Replace the needle plate. Contact your retailer or the nearest authorised service center. - The upper thread breaks. The area around the hole in the presser foot is scratched. Replace the presser foot. Contact your retailer or the nearest authorised service center. - The bobbin case is scratched, or has a burr on it. Replace the bobbin case. Contact your retailer or the nearest authorised service center. - You have not used a bobbin that has been designed for this machine. Incorrect bobbins will not work properly. Only use a bobbin that has been designed for this machine. page 12 You have not wound the bobbin thread properly. Wind the bobbin thread properly. page 12 The bobbin is scratched or does not turn smoothly. Replace the bobbin. - 4 The lower thread is tangled The thread is tangled. or breaks. Remove the tangled thread and clean the shuttle race. page 46 You have not used a bobbin that has been designed for this machine. Incorrect bobbins will not work properly. Only use a bobbin that has been designed for this machine. page 12 Bobbin is set incorrectly. Reset the bobbin thread correctly. page 14 The thread is tangled on the wrong side of the fabric. The upper thread was not threaded correctly. Correct the upper threading. page 16 You have not threaded the upper thread properly. Correct the upper threading. page 16 You have not wound the bobbin thread properly. Wind the bobbin thread properly. page 12 The thread tension is incorrect. You have not used the right combination of fabric, thread and needle. You have not attached the presserfoot holder properly. Choose a thread and needle that are appropriate for the type of fabric. Attach the presser-foot holder properly. page 19 page 24 The thread tension is incorrect. Adjust the tension of the upper thread. page 28 You have not used a bobbin that has been designed for this machine. Incorrect bobbins will not work properly. Only use a bobbin that has been designed for this machine. page 12 Bobbin is set incorrectly. Reset the bobbin thread correctly. page 14 The upper thread is too tight. The bobbin thread is incorrectly installed. Correctly install the bobbin thread. page 14 51