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Thread: Question on Bernina 730E Bobbin Sensor

  1. #1
    Super Member nursie76's Avatar
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    Those of you that have a Bernina 730, I was just sewing along and my bobbin ran out of thread. No warning, just ran out. I thought I understood that it was supposed to stop and give a warning on the screen. Now maybe I missed the beep and warning, but if I press the control foot down, will it then continue to sew? Not a big deal, but it was one feature that I was really excited about.

  2. #2
    Super Member sewjoyce's Avatar
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    Is your machine new? Or maybe this is the 1st time you've let the bobbin run out all the way?? If it didn't beep, it's possible that this feature was "turned off." I turned off the darn thing on my 200... :oops:

  3. #3
    Super Member nursie76's Avatar
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    Quote Originally Posted by sewjoyce
    Is your machine new? Or maybe this is the 1st time you've let the bobbin run out all the way?? If it didn't beep, it's possible that this feature was "turned off." I turned off the darn thing on my 200... :oops:
    Yes, my machine is new, and it is the first time I have let the bobbin run out. I can't figure how to check if it is turned on or not. I thought it would be under messages and tones or something like that on set up, but bobbin is not mentioned and only think I can find that is close is lower thread, but the tone is turned on (at least there is a check mark beside it. Guess I will have to call the dealer tomorrow.

  4. #4
    Super Member sewjoyce's Avatar
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    Well, congrats on your new machine!!! Yep, I'd probably call my dealer just to make sure nothing is wrong with it.... :D

  5. #5
    Super Member nursie76's Avatar
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    Quote Originally Posted by sewjoyce
    Well, congrats on your new machine!!! Yep, I'd probably call my dealer just to make sure nothing is wrong with it.... :D
    Thanks! Her name is Sadie and I am loving her! :-)

  6. #6
    Super Member Candace's Avatar
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    You should have a manual with your machine. Go to the back of it and look under bobbin. It would be in the manual.

  7. #7
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    Quote Originally Posted by sewjoyce
    Is your machine new? Or maybe this is the 1st time you've let the bobbin run out all the way?? If it didn't beep, it's possible that this feature was "turned off." I turned off the darn thing on my 200... :oops:
    I think this is very possible. I will say that I own a 640 though and sometimes it alerts after I run out sometimes before and sometimes not at all. :roll: I've never figured it out so I just figure its part of my Bea's "personality" Other than a few little personality quirks I love my Bea and she loves me.

  8. #8
    Super Member nursie76's Avatar
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    Quote Originally Posted by Candace
    You should have a manual with your machine. Go to the back of it and look under bobbin. It would be in the manual.
    Thanks, I have looked. I have decided that the function IS on and that it is not functioning correctly. I tried putting an empty bobbin in it and it stitched merrily along...will definitely call the dealer tomorrow.

  9. #9
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    Have you had a chance to try out the embroidery module yet? My machines bobbin sensor is extra sensitive(alerting when it is no where near empty) in the embroidery mode so I turn it off in that mode.

    I'd really be interested in hearing what the dealer has to say about it. Please let us know. I hope they are able to help with a simple fix or are able to make it right.

  10. #10
    Super Member Candace's Avatar
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    Quote Originally Posted by nursie76
    Quote Originally Posted by Candace
    You should have a manual with your machine. Go to the back of it and look under bobbin. It would be in the manual.
    Thanks, I have looked. I have decided that the function IS on and that it is not functioning correctly. I tried putting an empty bobbin in it and it stitched merrily along...will definitely call the dealer tomorrow.
    Oh, o.k. Yes, if it's stitching away on an empty bobbin, there may be an issue. Have you cleaned out the bobbin area fully? Sometimes a piece of lint, thread etc. may be caught in or around the sensor. I'd do a thorough cleaning of the bobbin case area and see if that does the trick.

  11. #11
    Super Member thimblebug6000's Avatar
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    Are you using the correct bobbin? I have a Husq.Sapphire 870 which uses green bobbins so that the sensor works, if I put in a blue bobbin from my Husq. Lily the Sapphire can't tell when the thread is low on that type of bobbin. I know it's not your machine type but just a thought?

  12. #12
    Super Member nursie76's Avatar
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    Thanks for the input. Yes, the embroidery worked fine, but had a full bobbin and didn't use it up.
    I have cleaned the area thoroughly. I am using the bobbins that came with the machine, so hopefully they are the right ones.

    Spoke to the dealer and it seems to them that I am doing everything right and that the sensor is turned on. So, when I go for embroidery class at the beginning of next month, they will check it out.

  13. #13
    Power Poster sewnsewer2's Avatar
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    I have the 640 and I have no sound for the bobbin, it just stops! Then I change it.

  14. #14
    Super Member Oklahoma Suzie's Avatar
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    Quote Originally Posted by sewjoyce
    Well, congrats on your new machine!!! Yep, I'd probably call my dealer just to make sure nothing is wrong with it.... :D
    me too

  15. #15
    Super Member nursie76's Avatar
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    Quote Originally Posted by Oklahoma Suzie
    Quote Originally Posted by sewjoyce
    Well, congrats on your new machine!!! Yep, I'd probably call my dealer just to make sure nothing is wrong with it.... :D
    me too
    Called and they said bring it in....was going to wait until the beginning of next month when I go there for embroidery club. Now the needle up/down function of the foot control stopped working:? ...that I am not happy without....Sadie may go to the doctor sooner rather than later! :|

  16. #16
    Power Poster sewnsewer2's Avatar
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    I hope they can fix her. If she's new she shold still be under waranty.

  17. #17
    Super Member nursie76's Avatar
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    Quote Originally Posted by sewnsewer2
    I hope they can fix her. If she's new she shold still be under waranty.
    Yes, that is comforting. But it is frustrating. Like getting a toy with out batteries. :-) Gosh, I shouldn't complain, she still sews.

  18. #18
    Super Member sewjoyce's Avatar
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    Awwww, poor Sadie -- sounds like she might need an adjustment or two. I'm sure they'll be gentle....

  19. #19
    Super Member nursie76's Avatar
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    Quote Originally Posted by sewjoyce
    Awwww, poor Sadie -- sounds like she might need an adjustment or two. I'm sure they'll be gentle....
    Good News! Sadie was able to recover at home with some extra TLC and the dealers soothing instructions over the phone. Had to go into settings and let the speed thinga-ma-bob recalibrate motor speed or watts or something :roll: . Anyway, that fixed the foot control needle up/down problem and then he said "That might fix the bobbin sensor issue too", and low and behold, it did!!!!!!! I am sooooooo relieved. All that and before 9:30 in the morning too! :-P

    Now, I could sew to my hearts content....but I have to work to support my habit ;) and I work 2 jobs today and won't get home until about 10...sigh.....

    Thanks for everyones help and concern. It makes me panic just a little less when you folks are there for me :)

  20. #20
    Super Member Candace's Avatar
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    Good news:>

  21. #21
    Super Member nursie76's Avatar
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    :thumbup:

  22. #22
    Super Member Quilter2B's Avatar
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    That's wonderful that Sadie is better! I love my 730 (had her for 6 months). If you buy more bobbins make sure they are for the 730 - other Bernina bobbins are slightly thicker in width and won't fit! Make sure you regularly clean out the bobbin area and pop off the plate over the feeddogs - I'm amazed at how much junk gets in there.

  23. #23
    Super Member nursie76's Avatar
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    Quote Originally Posted by Quilter2B
    That's wonderful that Sadie is better! I love my 730 (had her for 6 months). If you buy more bobbins make sure they are for the 730 - other Bernina bobbins are slightly thicker in width and won't fit! Make sure you regularly clean out the bobbin area and pop off the plate over the feeddogs - I'm amazed at how much junk gets in there.
    Yes, I have only had Sadie for about 2 or 3 weeks and have cleaned out that area twice already and was astonished at the amount of lint! Thanks for the heads up on the bobbins. I do need to get some more.

  24. #24
    Super Member sewjoyce's Avatar
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    Sew glad to hear that Sadie is all well again!!! You're a GOOD Mom! :D

  25. #25
    Super Member nursie76's Avatar
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    Quote Originally Posted by sewjoyce
    Sew glad to hear that Sadie is all well again!!! You're a GOOD Mom! :D
    Thanks! 8-)

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