Question about Bernina 2500DCET

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Bernina 2500DCET serger keeps breaking the centre needle thread for no apparent reason .Already had machine serviced,new needle plate didn't solve anything either. Any ideas

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  • Anonymous Mar 12, 2014

    needle bar is out of time with hook.

  • Anonymous Apr 01, 2014

    the needle straggles to go up and down

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I have found with any serger I have used that you have to cut the looper (bottom) threads before re threading the needle threads. You then rethread the loopers.
If you don't do this, the needle threads keep breaking. Hope this helps.

Posted on Mar 02, 2009

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  • Bernina Master
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Cut all the threads just above the tension disks and rethread from the beginning. Make sure to thread in the recommended order or it will never serge properly: UPPER Looper first, LOWER Looper second with the thread tail Crossing Over the Upper Looper as the last step, then thread the needles.

Posted on Apr 03, 2015

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Berninas hold their value and it is worth investing in the service fee to have the machine thoroughly gone over by a Bernina certified tech.

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