How to fix a skipped stitch on your sewing machine
A skipped stitch is a gap where a complete stitch should have formed. Sewers also call it a dropped stitch, missing stitch or skipped stitching. A random gap can point to thread tension, a damaged needle or a snag; a regular gap may mean the stitch length is too short. Reproduce the fault on scrap fabric before changing settings.
Most skipped stitching on a domestic machine is not a major failure. A blunt or incorrect needle, poor threading, a faulty bobbin and excessive fabric pressure account for many cases. Needle and thread tension deserve attention, but buying a timing adjustment before checking the simple items can waste money. Change one variable at a time.
Australian homes use 230-volt electricity, so check the machine’s rating before first use. Cotton and linen sold by the metre at Spotlight or an independent quilting shop can behave differently from synthetic jersey. Use the actual project fabric, especially for linen, denim or stretch material. Both “serger” and “overlocker” are common terms in Australian sewing rooms.
Begin with a fresh needle of the correct size and type, re-thread the machine using its manual, and fit a correctly wound bobbin. Sew a short line on the problem material. If the fault disappears, the original needle or threading was probably responsible; if it remains, continue below. Unplug the machine before opening covers.
Check the symptom and likely causes
Note the fabric, thread, stitch length, tension setting and needle type before touching the controls. A consistent pattern on the test line helps separate a machine fault from a material problem.
| Symptom | Likely cause | First check |
|---|---|---|
| Gaps in thick fabric | Dull, bent or unsuitable needle | Fit a new needle of the correct size |
| Random gaps after a break | Frayed or tangled thread | Re-thread and replace damaged thread |
| Loose loops underneath | Bobbin wound or fitted wrongly | Rewind and seat the bobbin |
| Evenly repeated gaps | Short stitch length or mistiming | Use a medium stitch length, then test |
| Bunching or a rubbing needle | Wrong foot or excessive pressure | Check the foot and needle position |
Use the relevant row rather than changing several settings at once. If the fault appears only with stretch jersey, organza or heavy denim, focus on the material, needle and presser foot. If it occurs on every fabric, clean and re-thread the machine before considering adjustment.
Renew the needle and re-thread the machine
Needles wear quickly in cotton, canvas and denim. Australian suppliers commonly use No. 80/12 sizing: sharp points for woven fabric and ball points for stretch knit. Choose a size your manual permits; 80/12 is a typical all-purpose choice, while thicker cloth may need a heavier needle only if the machine supports it.
Fit the needle with the power off and the machine unplugged. Push it fully up, tighten the clamp screw, and follow the maker’s direction for the flat side on most household machines. A loose needle can sit at an angle and miss the loop; a needle for another machine system may never work.
Then re-thread rather than merely replacing thread. Use good-quality thread matched to the needle weight, route the upper thread through the tension discs correctly, and seat the bobbin thread in its tension spring or slot. Remove thread caught around the spool cap. Let the machine’s own winder wind the bobbin.
Clean the feed system and bobbin area
Switch off and unplug before opening the bobbin area. Remove lint with a soft brush, paying attention to the needle plate, feed dogs, bobbin race and thread beneath the presser foot. Check that the feed dogs rise and move together as the handwheel turns. Oil only where the manual directs; many modern machines need none around the hook.
Check the foot as well as the needle. A zipper, walking or roller foot changes how fabric feeds, while excess pressure can hold it too tightly for the needle to rise. Pins, bulky seams and a badly positioned zip can also stop the needle. Forcing the handwheel risks bending it and damaging the plate.
Do not make bobbin tension the first adjustment. Loose loops underneath often come from incorrect winding, a dirty race or a needle that leaves too much room for the thread. Follow the manual’s winding instructions, then test again.
Adjust settings and run a controlled test
Return the stitch length to a medium setting, commonly around 2.5–3 mm, unless the project requires otherwise. Very short stitches can fail to clear the needle’s eye. Set thread tension at the manual’s recommended position, then make only small, deliberate changes while comparing the upper and lower threads. Sharp tension changes can hide the real fault and cause puckering.
Use a controlled test after each change. Sew a 30 cm line on the same fabric with the same thread, then inspect both sides under good light. If the machine always skips at one point, check for a needle mark on the plate, fabric bulk or a damaged needle. If gaps recur at even intervals on any material, suspect settings or timing.
A reliable test sequence helps keep the diagnosis clear:
- Save a scrap of the failing fabric for every test.
- Fit a new needle matched to the fabric and machine system.
- Re-thread the upper path and replace the bobbin.
- Set the stitch length to about 2.5–3 mm.
- Sew at least 30 cm and inspect both sides.
- Change one setting at a time and record the result.
Know when the machine needs professional service
Arrange professional service if you find a bent hook, a burr around the needle hole, damaged feed dogs or a machine that will not complete its cycle. Stop sewing if the needle strikes the plate, the motor smells hot or the handwheel becomes gritty. Opening the timing area is not a sensible first repair.
Before booking, record the model and serial numbers, list the fabrics that trigger the fault and bring the sample. Australian buyers should compare prices in Australian dollars and check the local dealer’s warranty, as imported machines may offer fewer authorised options. Spare parts sent to regional Western Australia or Alice Springs can take longer to arrive, making a local technician more practical.
Check the maker’s instructions for the exact model rather than a generic internet answer. That habit of checking original material applies elsewhere: when reading a Kostanay election notice, verify the published details rather than repeating an unverified summary. Use the same standard for replacement parts and timing advice.
If repair costs approach the price of a suitable replacement, compare the features you need instead of the model name. This patch and appliqué guide helps assess decorative stitching and small-project capability. A machine that makes neat appliqué may still struggle with thick quilting layers, so assess the actual project rather than a sales photograph.