20 Most Recent Brother NX-400 Questions & Answers

It most likely is your foot pedal. Unplug your foot pedal and start the machine without it. If it works properly without the foot pedal plugged in then your foot pedal needs repaired or replaced. This worked for us with the NX400 machine and I am sure the NX450 is closely similar. Don't bother to buy a Manual if you didn't already get one with the machine. A Service manual and parts manual is best; But just so you know they don't show the error codes unless you are a qualified and authorized repair person for the machines. I got my info from the repair man where my wife buys and repairs her machines. I am an electronic technician and mechanic so I understand how this system works. I will be repairing my wife's machines from now on.

Most machines have sounds that cannot be turned off. You can probably try contacting Brother support.https://www.manualguru.com/brother/nx-400/owners-manualhttps://www.manualguru.com/brother/nx-400/owners-manual

Nancy, if you ever give up on your machine, would you consider parting with the cord and foot pedal assembly? - I just picked up a cute machine at a thrift store. Looks like the previous owner's puppy chewed on the plug. It still works, but for how long or how safely is the question. Thank you!

machine was working fine when suddenly it just jammed up. Everything seems to be fine, but the balance wheel is completely jammed rigid. I've looked at the shuttle and there are no thread jams at all. The needle moves fine from side to side with different stitch selections, but wont go up and down with the wheel.
I have tried looking in the machine, but I can't find any thread jammed.

I believe you're talking about the free arm. The storage compartment can be removed. The switch is normally right there in front of the compartment as you pull it off.

Make sure you CLEARED all the fabric and thread away from the inside of your machine. Disconnect it from the power. Then turn it back on.

1. thread machine correctly. 2. make sure bobbin case in spinning in the case in the correct rotation. If the bobbin is spinning off of the bobbin incorrectly, "bird nesting" is the result.

Untangle the thread in bobbin or under plate, rethread machine, power off, power on, should work.

Hi,the first time I lowered mine the same thing happened. The machine was due for a service so I explained the problem.The engineer explained with a grin -- the come up automatically when you have switched over and start sewing again ---blush !

You sound like a very experienced seamstress. Are you inquiring about a serger or a sewing machine. Work with one tension at a time. Is it the upper thread that is loose when sewing on a sewing machine. The bobbin controls the upper thread and visa versa. Set the tension dial on the sewing machine to zero and work from there slowly. Perhaps the tension discs are not controlling the thread any longer. I hope this helps. Kate