Question about Janome 4623 Mechanical Sewing Machine

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Machine suddenly became noisy on sewing

I've been sewing with velvet. My machine is quite new and been used only a couple of times. It was it's usual silent self, sewing away happily this evening then, as I started a new piece with a new thread, it became noisy on sewing. I've tried other bobbins and threads (including what I was previously using), changed the needle and can't see any trapped threads, nor was there a sign of any. If I unthread the machine it is quiet, threaded it's noisy as if it has a blunt needle but it hasn't, it's from a new packet and appropriate for the velvet material. I can't beleive such a new machine has a problem nor one that is silent sewing when unthreaded. I've checked the manual and have threaded correctly. Any suggestions? Thanks. SB.

Posted by Anonymous on

  • Anonymous Mar 16, 2014

    when i thread my machine and start to sew it comes unthreaded



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Thanks. As no one had replied (it's been 8 months) I took this back to the shop I bought it from and they fixed under warranty.

Posted on Dec 24, 2007


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What size needle required for sewing Velvet curtains??

What kind of velvet? Poly-based fabrics often require ball-point needles to avoid pulls. For apparel weight velvet (something I'd make a skirt with), I'd probably use at least an 90, possibly heavier. For really heavy, upholstery-weight, I'd use my walking-foot machine and a 100-110 (often used for jeans). But I'm sure I'd want to bind all of the seams on my serger, I often bind after sewing the regular seams, but for very heavy fabrics I'd bind first (just run up all of the edges of each piece before sewing seams).
Hope this helps.

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My sewing machine needle (very new one) keeps jamming every couple of turns of the needle - and the thread is very loose and loopy on the fabric. It makes a jarring noise

not quite sure how needle is jamming. I have had them break, had thread ball up underneath and caused needle to jam. Question is the needle in the right way, ie the flat side in as per manual, generally the flat side faces away from you. Sounds like your tension is not quite right if the thread is looping. Loops on bottom, bobbin tension, on top sewing machine tension

Dec 08, 2014 | Sewing Machines

1 Answer

Sewing machine jammed while sewing

go on line, google for- new home hf-2022 sewing machine and down load pdf manual for machine

May 10, 2013 | New Home HF-2022

1 Answer

My Bernina Activa 140 (12 yrs. old,first time to have any trouble with it) has stopped stitching properly. The top thread looks normal but underneaty(the bobbin thread I guess) is just giant loops an

Almost every time this will be due to the machine being not threaded correctly. I've been sewing for 45 years and still mis-thread my machine occasionally. It's also possible that the bobbin thread didn't seat quite right when you put in the bobbin. Or, I've had mine do that if I didn't quite get the presser foot lever down completely. (working with heavy fabrics usually)

If that is not the case here, try replacing your needle with a new one, as it might have developed a small burr, and be certain that it's the correct needle for the fabric. Sometimes it can also be that the needle is in backwards. Also, cleaning it, (the bobbin area), out thoroughly by using a soft brush and some canned air can do wonders for it. Then use a drop or two of sewing machine oil where your manual indicates it to go in that area.

If none of that fixes the problem, let me know and I'll see if there is a problem specific to your machine that can happen.

Happy Sewing! :)

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1 Answer

Bobbin thread on excelw18 just pulls out after stitching

You have to keep the presser foot in the UP position in order to thread it properly. If presser foot is in DOWN position when threading, the thread cannot fall correctly into the tension discs.
Needle nice and new? Inserted all the way up as far as it can possibly go in the needle bar groove? Flat side toward back and thread inserted into the eye of the needle front to back? Feed dogs cleaned of broken thread?
If bobbin thread is problem, it's a threading issue. Did you actually put your threaded needle down into the needle hole and make a loop with your bobbin thread? Quite fixable. Relax, have a cup of tea and get away from machine for a good minute, then check all the things I just mentioned. Then you will be sewing happily in no time.

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1 Answer

I have a Brother LS-1717 sewing machine and my thread keeps breaking. We've oiled it but it hasn't acted right for years, it hasn't seemed to matter what the settings are on or what...

here are somethings to try,
1. change the needle--flat side goes to the back of the machine
2. check the tension see if it's too tight,,usually 4 to 5 is good
3. rethread the machine top thread & bobbin area
4. check to see if there are any burrs on the needle plate where the feed dogs are (teeth area)
5. you said that you made a comforter for your husband using thick fabric,,some sewing machine are not good at sewing comforters & other heavy fabric,, it's possible that the machine is out of time, which means it will not sew good & mess up,, which means it needs to be serviced by a repair shop technican to see if it is out of time.

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1 Answer

My machine will not make a proper stitch. I've re-threaded it 3 times, but the stitch only occurs once in every3-4inches-I have just loose thread on my material.

have you tried changing the needle-if the needle has a flat side goes to the back of the machine-round needle the groove faces away from the shaft

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1 Answer

I have a singer futura ce100 i loaded updates etc for win 7 and still have an error sayin a dll file was not loaded .this is a 64bitoperating system

I've posted a set of instructions for running XP programs on windows 7 as a virtual machine. It's a bit lengthy, but follow carefully and you should be just fine. It's worked perfectly on my Windows 7 and I've been happily embroidering since I've installed it!

I really hope this helps you!

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2 Answers

Oil a 7442 sewing machine

Hi. Your manual will tell you where to oil your machine, or if it's self-oiling (in which case you don't oil it). If you've lost your manual, check with; they have your manual. I wrote a small tip on oiling your machine, too.

Be sure to use good sewing machine oil in your machine. You can get it at any fabric store or order it online. One of my favorite online stores for sewing supplies is Nancy's Notions (

Whether or not your machine is self-oiling, be sure to keep the lint cleaned out of the bobbin area. You can use a small brush (even a little paint brush works nicely) and just brush all the bits of lint out. A good habit to get into is to brush all the lint out when you go to put your machine away after each use.

Since you're new to sewing, here's a couple more things that are good to know:

Use good quality thread. Protect your thread supplies from dust and sunlight. Old or cheap thread breaks easily and gives off more lint.

Use a new needle with each project you sew and make sure you use the right size needle and thread for what you're sewing. I wrote a quick guide about which needle to use with what fabric.

Most problems you experience with your machine can be solved by rethreading your machine or changing the needle.

Happy Sewing!


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3 Answers

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Apr 17, 2009 | Singer CE-200 Quantum Futura Computerized...

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