CAN NOT GET BOBBIN DOOR OPEN

Sounds like a fancy new machine. I am not directly familiar with that machine, but I am very familiar with the same problem in Vintage mechanical machines, and perhaps most of it will have a counterpart to resolve your problem. 1. The first thing to check is the mechanism used to Lock and Unlock the Machine drive train when a Bobbin is being wound. (A) On much older machines, this is usually a knob located in the middle of the Handwheel, Turn one way to engage the power train, and turn the other way to disengage the power train. (B) On slightly older machines this is located in the same place (center of Hwndwheel), but is a Push-Toggle mechanism, push one part in and it disengages the Drive Train, used when winding Bobbins, push it back to Normal to re-engage the Drive Train, so the needle goes up and down again. (C) Your machine may be similar to one of these, or if it is far more electronic, then there is a special Switch or Setting to do the same thing. Check your Owner's Manual to see how your machine engages and dis-engages the Drive Train that makes the needle go Up-And-Down when you sew, or not go Up-And-Down when you are winding a Bobbin. Since this Bobbin winding option involves disengaging the Drive-Train, if it gets damaged or worn out, it disables your machine. For this reason, I do not recommend home sewing machine operators to eve use the Dis-Engage feature when they are winding Bobbins, just be sure the Presser-Foot is in the UP position. The Needle going Up-And-Down won't damage anything for that short while. 2. Another area to check is the Bobbin Winding mechanizim. Be sure it is disengaged so ther is no drag on the machine. On the newer machines, maybe even yours, the two mechanizims to Start and Stop the Drive-Train and the mechanizim to re-wind a Bobbin are inter-connected, meaning one may trip or un-trip the other. If this is the case, then all you would have to do is dis-engage the Bobbin Winder, and . . . PRESTO ! . . . your problem is fixed. Hope this Helps you fix your machine that runs but does not Drive the Needle. Sincerely, Amender, 2020-DEC-03#

Machines can have different bobbin setups (top vs side loaded, etc) ... but what might help you diagnose the issue is to remove the needle and manually rotate the machine with the needle plate cover pushed back ... does it still make the noise? can you see any part deflect when the bobbin case rotates??... then the problem has nothing to do with the needle. On the other hand, if everything is smooth with the needle out then reinstall it and slowly rotate the machine ... does the noise then happen when the needle dips down into the bobbin case? If so, then your bobbin timing is off and you will need service. Depending on your machine's manufacturer there are technical service chat rooms where you could pose your question and they might be able to help. Good luck with your troubleshooting

Please provide the make & model of machine. We cannot provide even an uneducated guess without more information.

Is the hand wheel properly engaged ? A hand wheel often is used when you wind bobbin. When you wind a bobbin, you want to disengage the clutch to prevent the needle going up/down.

On a lot of machines, either the entire hand wheel will pull out, or a smaller middle dial will pull out. You pull it out to wind the bobbin, push it back in to reengage the clutch so the needle goes up/down again.

So giving it a good push IN might solve this.

This happens to me when my bobbin isn't pushed down completely onto the bobbin holder. Also, it happens when I overfill the bobbin and the bobbin sensor doesn't stop the bobbin when it is full.

This message is often the result of people trying to close the bobbin door too quickly before the bobbin / hook mechanism has swung in properly. There is a complex system of gearing called the 'console motor / gear' that does all the clever bits like swinging the bobbin out, dropping the feed dogs and operating the bobbin thread cutter and this can get dislodged. Switch the machine off and open the bobbin door. Above the black plastic cover for the rear of the hook mechanism, you should see a small latch which is operated by a mechanism that slides left-to-rightacross it. Check that the 'pip' on the sliding mechanism has not overrriden the latch and is on the outside of it. If it is, you can sometimes carefully push it back to the right-hand-side of the latch and all will be well, however what frequently happens is that the 'drive' end of this mechanism gets dislodged from the console gear and its then a dismantling job to put right ... dont mess about with 820's they are very difficult to set up !!! Something else to try, is to remove the needle and bobbin, switch on the machine with the bobbin door open, then close it and open it again and see if the hook mechanism will swing out. Also, again, without the needle fitted (very important), try rotating the handwheel backwards, but if you come up against any resistance, STOP ... the user manual is incorrect in its advice where it says " use considerable force" - this is an error in translation and I've already had one customer who did 400 pounds of damage in following that advice.

It may be that the door closure sensor has got fluff in it, so the machine thinks that the bobbin door has been opened - the automatic bobbin preenter will then rotate the bobbin case out, and open the door in the process. You should probably have this looked-at by a properly certificated 830 service engineer - it's a very complicated machine, however, you could try VERY CAREFULLY, with a long fine paintbrush, just brushing any fluff and lint out of the sensor. Switch the machine OFF with the bobbin door closed. Open the bobbin door and look on the left-hand-side of the hinged-bottom of the door - you'll see a semicircular black plastic part secured to the left-hand end - it's got a couple of notches in it. When you close the door, these notches interrupt a couple of light sensors on a small circuit-board that you can probably just see behind the white plastic cover. With a fine brush, with long bristles, VERY VERY CAREFULLY, push the bristles through where the semicircular plastic part moves between the sensors, and with luck, this will remove any fluff that's causing the problem. If that fails, it is possible that the 'console mechanism' has gone out of alignment - this seems to be rather common on these machines and can happen if you've had a needle crunch which sometimes happens if you apply too much pressure to the thread when starting an embroidery - in that case, the only solution is to have the machine looked-at professionally. Good Luck

Have you tried to take out the bobbin case, close the door, and see if the indicator comes on? If the indicator works with no bobbin case, then the machine is working. You may have what we call foggy bobbins. Bobbins that are scratched or cloudy. Make sure you try a new one.Also check for lint blockage in the hook area or the bobbin case. If it still doesn't work, the indicator on the door may have gotten pushed in. That sometimes happens. You should feel the indicator eye protruding out a little bit from the door. You can open the area where the indicator is on the door to push it back out. Sometimes the indicator wire behind the hook gets broken. That would require you do disassemble the freearm cover area. Start with the simple things first.

I'm not sure what you mean about this. When you want to wind a bobbin, you put it on the bobbin winder pin on the upper right side of the front of the machine, and then push/slide it down towards the bottom of the machine; it goes about an inch or so, and then the screen will say "bobbin winder engaged." The bobbin is now in line with the fat lever that will automatically stop the winding when the bobbin is full. (I usually use my fingernail to guide the thread up and down a bit so that the bobbin is wound smoother.) If you have the same manual I have, that came with my machine about 4-5 years ago, the two pictures on the bottom right-hand side of page 10 will show you what I mean. -- BTW you can wind a bobbin with the machine threaded or not threaded. (pages 10-11) Also, always be sure to wind the bobbin with the logo-marked side up, the same way you place it in the bobbin holder when you are ready to sew. -- I hope this helps.

When you put the bobbin on the winding pin, you need to push the bobbin toward the other round pin next to it. That activates the bobbin winder. If you look closely at the picture in the manual, there is an arrow showing to push the bobbin over.