Skipping stitches, shaking, thread breaking, or it simply won’t sew properly?
In this article, we explain the most common mistakes with household overlock machines and how to fix them yourself – quickly and stress-free.
1. Overlock Does Not Sew or Skips Stitches
This is one of the most frequent issues when using an overlock machine at home.
The usual causes include:
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Incorrect thread threading,
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Blunt or inappropriate needle,
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Improper thread tension.
Solution:
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Check if the threads are threaded correctly – the sequence is crucial with household overlock machines.
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Replace the needle. It’s recommended to do so after 8–10 hours of use.
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Ensure the needle is inserted correctly – its height also matters. Even a small misalignment can cause skipped stitches.
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Use the same type of needle that came with the machine, or opt for trusted brands. Unfortunately, even new needles can be defective – if a new needle doesn’t work well, replace it.
2. Threads Break or Tangle
If threads frequently break or tangle, the problem may lie in:
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Overly tight thread tension,
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Poor thread quality,
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Accumulated lint and fibers inside the machine.
Solution:
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Adjust the tension of all threads so they are balanced.
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Use high-quality thread specifically designed for overlock machines.
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Use thread of the same thickness and brand on all 4 (or 3) positions. Different colors are fine – the quality must be consistent.
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Clean the inside of the machine regularly, as lint quickly accumulates and disrupts function.
3. Uneven Stitches
Uneven or wrinkled stitches are typically caused by:
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Incorrectly adjusted differential feed,
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Wrong stitch length,
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Incorrect presser foot pressure.
Solution:
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Adjust the differential feed based on the fabric type (higher for stretchy materials, lower for thin ones).
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Set the appropriate stitch length.
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Ensure the presser foot applies the right pressure and that the fabric feeds smoothly underneath.
4. Machine Vibrates or Makes Noise
An overlock machine should operate quietly and smoothly. Vibration or noise may be caused by:
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Unstable working surface,
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Worn-out parts,
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Inadequate mat or base,
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Or lack of lubrication.
Solution:
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Place the machine on a flat, solid surface.
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Use a rubber pad, which reduces vibrations and prevents the machine from moving during operation.
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Inspect the internal parts and contact a technician if needed.
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Lubricate moving parts regularly with special sewing machine oil – a dry machine may make more noise and wear out faster.
5. Overlock Suddenly Stops Working
Sometimes an overlock machine may suddenly stop working. Possible causes include:
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Blown fuse,
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Jammed fabric,
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Electrical failure,
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Or simply lack of lubrication or motor overheating.
Solution:
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Unplug the machine, remove the fabric, and check for tangled threads.
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Check the manual for fuse replacement instructions.
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Let the machine cool down and ensure that all parts move freely.
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If the issue persists, contact a professional service technician.
Prevention: Fewer Problems, More Joy
Just like we take a car in for a regular annual service, the same applies to a sewing machine – regular maintenance is key to a long service life. After each use, it is recommended to remove thread and fabric residues, as they can interfere with the operation. The machine should be oiled regularly to reduce wear on moving parts. It is advisable to take your overlock machine to a professional service at least once a year for a thorough inspection and adjustment.
Prevention is always better than repair – with regular maintenance, you can avoid major malfunctions and unexpected costs.
Conclusion
Household overlock machines are extremely useful, but they require careful handling and regular maintenance. Many problems that seem serious can easily be solved with a bit of knowledge and patience. The key lies in using the right needles, high-quality threads, and performing basic cleaning and oiling.
If you need additional help, advice, or are looking for reliable spare parts, reach out to the experts. At Rigo d.o.o., we are happy to assist you with purchasing, adjusting, and maintaining your overlock machine.
For more sewing tips, we also recommend this video: How to properly use an overlock machine
