Bernina 880 Owner's Manual

Troubleshooting

 

̶ lower thread incorrectly threaded

 

̶ upper thread incorrectly threaded

 

̶ needle blunt or bent

 

̶ poor quality needle

 

̶ upper thread too tight/too slack

 

̶ poor quality thread

 

̶ needle/thread combination is incorrect

 

̶ lower thread too tight/too slack

check the threading path of the lower thread

check the threading path of the upper thread

use new BERNINA quality needle

use new BERNINA quality needle

reduce/increase upper thread tension

use quality thread (Isacord, Mettler, Gütermann etc.)

match the needle to the thread size

reduce/increase lower thread tension

 

̶ incorrect needle system

 

̶ needle bent or blunt

 

̶ poor quality needle

 

̶ needle/thread combination is incorrect

 

̶ needle inserted incorrectly

 

̶ incorrect needle point

use needle system 130/705H

use new BERNINA quality needle

use new BERNINA quality needle

match the needle to the thread size, refer to page 17

insert needle as far up as it will go

match the needle point to the texture of the material

 

̶ needle/thread combination is incorrect

 

̶ upper thread tension too tight

 

̶ incorrectly threaded

 

̶ poor quality or old thread

 

̶ stitch plate or hook tip damaged

 

̶ lower thread tension too tight

 

̶ stitch hole in the stitch plate has been 

damaged

 

̶ needle blunt or bent

 

̶ needle not correctly inserted

 

̶ fabric was pulled

 

̶ fabric was pushed when using thick 

material 

 

̶ poor quality thread with knots

 

̶ thread remnants between between the 

tension discs of the upper thread 

tension 

 

̶ incorrectly threaded

match the needle to the thread size 

reduce the upper thread tension

check the threading path of the upper thread

use quality thread (Isacord, Mettler, Gütermann etc.)

take the sewing computer to the nearest authorized 

BERNINA dealer

remove thread remnants at the pre-tension carefully using 

tweezers and check the thread lever if necessary, refer to 

page 205

reduce the lower thread tension

take the sewing computer to the nearest authorized 

BERNINA dealer

use new BERNINA quality needle

tighten the needle clamp screw

do not pull the fabric during sewing

use the correct presser foot for thick material (e.g. Jeans foot 

No. 8) use height compensating tool when sewing over a 

thick seam

use quality thread (Isacord, Mettler, Gütermann etc.)

fold a piece of thin material and slide the folded edge (not the 

raw edges) between the thread tension discs, moving the 

material sideways over the front and back of the thread 

tension disc

check upper and lower thread

Various troubles can be eliminated by turning the sewing-/

embroidery computer off and turning it on again after 10 sec.

the upper and lower threads are threaded correctly

the needle is inserted correctly

the needle size is correct - check the needle/thread table page 17

the needle tip and shaft are undamaged

the sewing computer is clean - brush out any thread lint

the hook race is clean

any threads are trapped between the tension discs or under the bobbin case spring

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