TROUBLESHOOTING:
Trouble
Causes
Solution
Lamp does not
illuminate
1. No pwer supply.
2. AC adaptor are not installed
correctly.
3. AC adaptor are dead
1. Turn the power supply switch ON and supply power.
2. Make sure the AC adaptar are oriented correctly and reinstall them
3. Install new the AC adaptor
Machine runs
slowly
1. No pwer supply.
2. AC adaptor are not installed
correctly.
3. AC adaptor are dead
1. Turn the power supply switch ON and supply power.
2. Make sure the AC adaptar are oriented correctly and reinstall them
3. Install new the AC adaptor
Machine does not
run
1. No pwer supply.
2. AC adaptor are not installed
correctly.
3. AC adaptor are dead
1. Turn the power supply switch ON and supply power.
2. Make sure the AC adaptar are oriented correctly and reinstall them
3. Install new the AC adaptor
Stitches not
regular
1. Upper thread not threaded
correctly.
2. Needle is bent.
3. Dust buildup in the bobobbin case
1. Correctly thread the upper thread.
2. Remove the old needle. Install a new needle.
3. Clean the bobbin case
Bobbin thread
does not come out
from the bobbin
1. Out of bobbin thread.
2. Incorrect threading.
1. Wind thread onto the bobbin or install a loaded bobbin.
2. Thread the needle correctly (from the front).
Thread keeps
breaking
1. Knots and tagles in the thread.
2. Upper thread or bobbin thread
threaded incorrectly.
3. Needle is bent.
4. Needle incorrectly installed.
5. Too much thread tension.
1. Use scissors to cut out thread knots and tangles.
2. Check how to assemble upper thread or bobbin thread, to thread the machine
correctly.
3. Remove the old needle and install a new one.
4. Install needle correctly.
5. Turn the upper thread adjustment dial for 3-5 degrees and loosen thread
tension.
Stitches are loose
or uneven.
1. Upper thread does not feed pro-
perly from the thread spool.
2. The upper thread is too loose.
1. Reinstall the spool and make sure the spool turns smoothly.
2. Reinstall the spool and make sure the spool turns smoothly.
Needle breaks
1. Needle is bent or deformed.
2. Needle incorrectly installed.
3. Needle clamp screw is loose.
1. Remove the old needle. Install a new needle.
2. Install needle correctly.
3. Firmly tighten the needle clamp screw.
Threat gets tan-
gled and does not
work
1. Thread gets tangled inside
1. Turn off the power and slowly turn the pulley toward you to pull out the tangled
thread.
Needle gets stuck
in thick fabric
1. Needle does not penetrate
smoothly.
1. Set the operating switch to STOP, turn the pulley toward you, try making 2-3
stitches, and then move the operating switch.
Stitch (thread
tension) out of
adjustment-
1. Using a non-metallic bobbin.
1. Use a metal bobbin
Needle hit needle
palte or foot
presser
1. The needle is bent or deformed
1. Install a new needle
