I am very unhappy with the self threading mechanism. I have to physically get the needle where it belongs and the threading is! to start the process of the self threading is difficult.
I love this machine so much. It’s easy to thread and works great. I offered to hem everybody’s pants. If they don’t need to be hemmed I will hem them and then take the hem out because it is so fun to sew on this machine. My son in law is getting the same machine because I taught him how to alter his clothes on it.
I had to say goodbye to my first Singer sewing machine, which lasted 46 years. I just purchased the heavy duty 4423 sewing machine. It is lightweight, easy to use, and made well. It comes with all the accessories most users will ever need. I’m really enjoying using it.
Got this as a gift and it is horrible. Thread breaks every time I use it. Had it to 2 repair shops and no one can fix it.
Response from singer.comBy Customer Support, April 29, 2026
We are sad to hear that you didn’t have the best experience with your recent purchase of the Singer Heavy Duty 4423. Your satisfaction is what we strive for, and we would love the chance to hear how we can improve. Please reach out at your convenience at https://www.singer.com/Contact-Us to help us understand how we can better serve you in the future.
Straight out of the box, the shaft where needle is inserted was misaligned, even with the dial set to the right the needle was not perpendicular. Lifting the presser foot, the lifter tab hit the housing when raised to get extra height. I took off the cover and the lifter mechanism also hits a screw holding in the upper thread guide. I tried a dozen different needles, bought brand new high quality thread, changed bobbins, different fabrics, settings, and still couldn't get a consistent nice stitch. I couldn't sew at night it would wake up my toddler way down the hall door closed it was so clunky and loud.
Cheaply made, cannot get tension correct, bottom thread bunches no matter what I do. Can't afford a service call that costs more than machine. My last electronic Singer did everything and lasted 30+ years
I bought this machine a few months ago and am very happy with it. Easy to use and has plenty of power I made a lumbar pillow with corded trim, had no problems whatsoever