![background image](http://html2.mh-extra.com/html/baby-lock/blrg20st/blrg20st_instruction-and-reference-manual_3052834064.webp)
64 | www.BabyLock.com
Wrong type of needle
• Use only the needles recommended by Baby Lock
(134, sizes 12 through 21).
Other possible problems
• Needle too close to hook, causing friction and
possible collision of hook point and needle (causing
broken thread).
• Needle plate damage
• Hook damage
• Broken needles or damaged needle bar clamp
Nothing visible on the
display
Corrective Measure(s)
Display cables unplugged
• Locate the black cables that plug into the touchscreen
display and connect to the side of the machine. Make
sure both ends are plugged in securely.
Thread Break Sensor
Corrective Measure(s)
Thread Break Alarm
sounds
• Thread has broken and the alarm is functioning as
expected; re-thread the machine.
Thread Break Alarm
sounds but the threads are
not broken
• Re-thread the machine.
Thread Break Alarm
sounds but the machine is
threaded correctly
• If the tensions are not tight enough to make the take-
up spring pass by the Thread Break Sensor, then the
alarm will sound. Increase the tensions until the take-
up spring passes by the sensor. The sensor is located
above and to the front of the top tension assembly.
NOTE
: If the troubleshooting tips do not eliminate the problem, please consult an
authorized Baby Lock Retailer.