Singer Embroidery Machine: Skipped Stitches Troubleshooting Guide

1. Incorrect, Dull, or Bent Needle high likelihood

How to tell

Visually inspect the needle. A dull needle tip may appear rounded or flattened. A bent needle will show a visible curve or deviation from straightness. Using the wrong type (e.g., universal instead of embroidery) or size for your fabric/thread combination can also cause skips.

Fix

1. Remove the current needle by loosening the needle clamp screw.
2. Select a new, sharp embroidery needle of the correct type and size for your fabric and thread (e.g., a ballpoint for knits, a sharp for wovens, appropriate size for thread weight).
3. Insert the new needle fully into the needle bar, ensuring the flat side of the needle shank faces the back of the machine (or as specified in your machine's manual).
4. Tighten the needle clamp screw securely.

Always keep a supply of fresh, correct-type embroidery needles on hand.

Parts involved: Needles & needle bars →

2. Improper Needle Insertion high likelihood

How to tell

The needle may appear slightly lower or higher than usual, or visibly angled. If the needle is not fully seated, it cannot form the proper loop for the hook to catch.

Fix

1. Loosen the needle clamp screw.
2. Push the needle upwards as far as it will go into the needle bar, ensuring the flat side of the shank is correctly oriented (typically facing the back).
3. While holding the needle firmly in place, tighten the needle clamp screw securely.

Parts involved: Needles & needle bars →

3. Incorrect Thread Tension high likelihood

How to tell

Skipped stitches often accompany uneven stitches, loops on the top or bottom of the fabric, or thread breaks. Test stitching on scrap fabric will show if the top thread is too loose (loops on bottom) or too tight (bobbin thread visible on top), or vice-versa for the bobbin.

Fix

1. Completely re-thread the upper thread path, ensuring the thread is seated correctly in all guides and tension discs.
2. Remove the bobbin case and bobbin. Check for any lint or thread caught in the bobbin case tension spring. Reinsert the bobbin correctly, ensuring the thread feeds smoothly.
3. Adjust the upper thread tension dial incrementally (e.g., by 1-2 numbers) and test stitch on scrap fabric. Aim for balanced tension where top and bobbin threads meet in the middle of the fabric layers.
4. If upper tension adjustments don't resolve the issue, and you suspect bobbin tension, consult your machine's manual for instructions on adjusting bobbin case tension. Make very small adjustments.

Parts involved: Thread path & tension → Rotary hooks & bobbin cases →

4. Dirty or Misaligned Bobbin Area/Needle Plate high likelihood

How to tell

Visible lint, dust, or thread fragments around the bobbin case, rotary hook, or under the needle plate. The machine may sound rough or struggle during stitching.

Fix

1. Turn off and unplug the machine.
2. Remove the needle plate screws and lift the needle plate.
3. Remove the bobbin case and bobbin.
4. Using a small brush and/or vacuum cleaner, carefully remove all lint, dust, and thread bits from the bobbin area, rotary hook, feed dogs, and under the needle plate.
5. Inspect the rotary hook for any nicks or burrs that could snag thread. If present, a technician may need to polish or replace it.
6. Reinstall the bobbin case and needle plate, ensuring all components are seated correctly and screws are tightened.

Parts involved: Rotary hooks & bobbin cases → Lubrication & maintenance → Head & mechanical parts →

5. Poor Quality or Old Thread medium likelihood

How to tell

Thread may fray, break easily, or have inconsistent thickness. Old thread can become brittle. This often leads to inconsistent tension and skipped stitches.

Fix

1. Remove the current thread spool from the machine.
2. Replace it with a fresh spool of high-quality embroidery thread.
3. Re-thread the machine completely with the new thread.
4. Test stitch to confirm smooth feeding and stitch formation.

Parts involved: Threads & supplies →

6. Fabric Movement / Improper Hooping medium likelihood

How to tell

The fabric may appear loose within the hoop, or show ripples. The stabilizer might be inadequate for the fabric or design density, allowing the fabric to shift during stitching.

Fix

1. Ensure the fabric is hooped taut, like a drum, without distorting the fabric grain.
2. Use an appropriate stabilizer for your fabric type and design density. For dense designs or stretchy fabrics, use a cut-away or multiple layers of tear-away.
3. Check that the hoop is securely tightened and properly seated in the machine's hoop arm.

Parts involved: Hoops & frames →

7. Incorrect Presser Foot Pressure low likelihood

How to tell

If pressure is too light, fabric may lift with the needle, causing uneven stitches or skips. If too heavy, fabric may not feed smoothly. This is more common on machines with adjustable presser foot pressure.

Fix

1. Locate the presser foot pressure adjustment dial or screw on your machine (refer to your manual for its location).
2. Adjust the pressure: increase for thicker or slippery fabrics, decrease for very thin or delicate fabrics.
3. Test stitch on scrap fabric to observe if the fabric is held securely without being crushed or allowed to lift.

Parts involved: Presser feet & sewing parts →