Brother International Innov-is NQ700PRW Operation Manual - Page 133
While sewing
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Troubleshooting Symptom Probable Cause Remedy Reference The operation keys do not respond, or the sensitivity is too strong. The sensitivity of the operation keys is not set for the user. The sewing light does not come on. The sewing light is damaged. (Light) is set to "OFF" in the settings screen. Adjust the sensitivity of the operation keys. Contact your authorized Brother dealer or the nearest Brother authorized service center. Change the setting to "ON". B-14 - B-12 ■ While sewing Symptom Probable Cause Remedy Reference Machine does not operate. Needle breaks. "Start/Stop" button was not pressed. Press the "Start/Stop" button. B-35 The bobbin winder shaft is pushed to the right. Move the bobbin winder shaft to the left. B-15 There is no pattern selected. Select a pattern. B-34 Presser foot is not lowered. Lower the presser foot. B-35 "Start/Stop" button was pushed with the foot controller attached. Remove the foot controller, or use the foot controller to operate the machine. B-36 The "Start/Stop" button was pressed while the machine is set for the sewing speed controller to control the zigzag stitch width. Use the foot controller instead of the "Start/ Stop" button to operate the machine, or set the (Width control) to "OFF" in the settings screen. B-12 Needle is installed incorrectly. Reinstall the needle correctly. B-29 Needle clamp screw is not tightened. Tighten the needle clamp screw. B-29 Needle is turned or bent. Replace the needle. B-29 Using improper needle or thread for the selected fabric. Check the "Fabric/Thread/Needle Combinations" chart. B-28 Wrong presser foot was used. Use the recommended presser foot. B-32 Upper thread tension is too tight. Adjust the thread tension setting. B-40 Fabric is pulled during sewing. Do not pull the fabric during sewing. - Spool cap is set incorrectly. Check the method for attaching the spool cap, then reattach the spool cap. B-15 There are scratches around the opening in the Replace the needle plate, or consult your needle plate. authorized Brother dealer. A-8 There are scratches around the opening in the Replace the presser foot, or consult your presser foot. authorized Brother dealer. B-31 There are scratches on the bobbin case. Replace the bobbin case, or consult your authorized Brother dealer. A-2 Needle is defective. Replace the needle. B-29 A bobbin designed specifically for this machine is not used. Incorrect bobbins will not work properly. Only use a bobbin designed specifically for this machine. B-15 Upper threading is incorrect. Check the steps for threading the machine and rethread the machine. B-21 Bobbin is set incorrectly. Reset the bobbin thread correctly. B-18 Presser foot is attached incorrectly. Attach the presser foot correctly. B-31 MAINTENANCE AND TROUBLESHOOTING A Appendix A-13