Singer Touch-tronic 2000 makes loud humming/buzzing noise, stitch selector lights quit working, needle bar stopped moving.

Which specific model Singer Touch Tronic do you have? The Touch Tronic 2001 has a special cover plate and foot for darning and embroidery that blocks the feed dogs. Could that be installed on your machine? Try changing the cover plate to the zig-zag or straight stitch one, depending on your stitch choice. The zig-zag cover plate is appropriate for most stitches. Four different cover plates are listed in the included accessories on page 3 (page 5 of the PDF) of the manual.

Most Singer manuals are available here: https://www.singer.com/support . The Touch Tronic 2001 manual link is currently https://res.cloudinary.com/singer-sewing/image/upload/fl_attachment/Singer-Website-Library/outdated_product/5a0f6c95685a2d9c7d9a495892142df0f3a2707a_1.pdf .

I hope this helps. Unfortunately, if the other cover plates are not with the machine's accessories, I've only found a source for the slide plate. None of the cover plates appear to be available.

Cindy Wells

ASK SINGER.COM

The fabric does not advance... you need to observe the motion of the feed dogs (sawtooth strips of metal).

Turn machine on. Select a straight stitch with length 4 or 5. Then with foot lever up, manually rotate hand wheel and watch for feed dogs to raise up (above the needle plate) and move toward the rear and then lower (below needle plate), move toward the front of machine and then repeate the cycle for every stroke of the needle bar.

You may want to remove the needle plate for a better view of the feed dog movement and the rotary hook.

I suspect you will find either the feed dogs are not raising high enough or not moving at all.

Comment for further assistance.

Make sure the needle is inserted correctly with the flat area on the shank towards the screw. Make sure the Stitch Pattern selector is on plain stitches.

https://www.libble.eu/singer-9020/online-manual-734329/?page=6

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To do the basic rectangular button hole, make sure that you have plenty of thread in your bobbin. Put on the button hole foot. Mark your fabric before starting for the button hole locations. Testing the button hole on an extra piece of your fabric is useful for checking the tension balance. Next place your fabric under the presser foot and center the right side of the button hole position with the red alignment marks on the foot. Set the stitch to button hole stitch 1. Turn the hand wheel to bring the needle into the fabric at the point in the center of the needle opening of the presser foot. Stitch to the end of the planned button hole. Use the hand wheel to bring the needle out of the fabric and turn the stitch selector to the button hole stitch 2. Make at least 4 stitches and stop with the needle to the left side of the bottom of the button hole. Raise the needle and set the stitch selector to button hole stitch 3. Stitch back to the top of the button hole. Raise the needle and set the stitch selector to button hole stitch 4. Stitch at least 4 stitches. Raise the needle and the presser foot and remove the fabric. You can move to the next button hole or carefully cut the button hole opening.

The manual gives the directions for the 4-step button hole on page 28-29 (pages 30-31 of the PDF). Many Singer manuals are available here: https://www.singer.com/support . Singer has two manuals for the 6212. (One manual covers two machines; the other covers 7.) The manual to the first manual is currently here: https://res.cloudinary.com/singer-sewing/image/upload/fl_attachment/Singer-Website-Library/outdated_product/SINGER_6202_and_6212_Sewing_Machines.pdf .

I hope this helps.

Cindy Wells

the noise could be from the needle /hook timing, or bobbin carrier
take it to a service center for a service and to find out the worn/ loose parts

check with a singer service centre but some singers have a belt drive inside the case that works the needle bar mechanism
they are known to break
it is in side at the right hand end just behind the outside pulley

Sorry you are having a problem All machines work fine until they break. These early computer machines often had hand soldered components that are outdated. Sadly those are not supported by the manufacturer any more and most sewing technicians would advise you replace it with the problems you described.

I don't think it's a major timing issue, so don't panic. Take a look at your selected stitch pattern selector and set for straight stitch, and set Tension at 3-4. Width: 4. Length: 4. Make sure presser foot Down when you rethread machine so the tesion disks open up to locate thread. Always hold thread taut when "feeling" for tension slot. Insert new needle. Needle goes all the way up into needle clamp as far as it can possibly go, FLAT side needle toward needle bar and more rounded side needle facing you. Leave 6" tail. Hold thread toward you as you turn hand wheel toward you so needle can make a loop with bobbin thread. Make sure bobbin thread isn't hanging down on or across bobbin! Make sure thread in bobbin has wound evenly - good quality thread ideal! Clean bobbin area and feed dogs for broken, loose threads and lint. Always use needles appropriate size for weight of fabric. I suggest walking away from machine, taking deep, cleansing breadth, humming a favorite tune, then doing above and see how it goes! Soon your machine will be humming happily along with you. Hope these suggestions help. Jimmy

I had a similar problem a couple of years ago. I finally figured out that I had the straight stitch needle plate (the one with the single hole), rather than the zig zag needle plate (the one with the curved hole). When I changed plates, it worked fine.