E6 error on CS-100, thread underneath all knotted and tangled, makes grinding sounds.

Incorrect tension for material. Old knotted thread. Bobbin thread and needle thread must match. Thread and needle size suitable for the material being sewn.
Feed dogs underneath need cleaning. Thread tangled underneath feed plate. Needle too old or bent, or blunt.. Hope this helps

Q: What does E6 error message mean? A: The motor locked up because thread is tangled Q: How to fix E6 error message? A: Do the following:

• The upper thread could be tangled. Remove the upper thread and any loose threads. Raise the pressure foot, raise the needle to its highest position and rethread the machine.
• Remove the bobbin and bobbin case to clean any lint or loose threads. Install the bobbin case so that the projection on it aligns with the spring. Then install the bobbin into the bobbin case.
• The needle could be bent. Replace the needle making sure the flat side is facing the back.

An E6 error indicates a thread tangle. Combined with the noises you are hearing my guess would be that the tangle is around the take-up lever pivot and is seizing the machine (causing an overload - hence why it won't sew). The origin of this is often a further thread tangle between the tension disks, which has allowed the thread to fly loosely around the take-up. Your best bet will be to take it to your local sewing centre. This is the sort of issue we commonly address as a part of servicing. You will find a description of what you might try in the Service Centre section of our shop's website http://www.kornacraft.com.au/sewingcentre-under-the-covers/

The motor locked up because the thread is tangled.
Solution:
Remove the tangled thread before continuing the operation.
Clean the bobbin case to remove the tangled thread.
After cleaning the bobbin case, insert the bobbin case properly.
If the needle is bent or broken, replace the needle.
Then, thread the upper thread properly, and continue the operation.

Hello

This code tells you that the motor locked up because the thread is tangled. Untangle the thread, make sure the machine is threaded properly and that the proper tension is set before continuing.

It could be that the bobbin is being put in upside down check to make sure that you do not need a bobbin with a magnet on one side. also make sure there is no thread tangled inside the bobbin housing it will cause the timing of the machine to be off and cause issues with your needle picking up the bobbin and thus cause a mess inside you bobbin housing

What kind of thread are you trying to use? Is it a decent fresh thread? If, it is old, throw it out and buy some fresh quality thread. Usually, cheap thread is the problem.

Did you brush it out? Now, unplug and wait 15 seconds the plug in again. Totally rethread your machine and make sure the thread is not tangled. That should reset it. If not, call Brother at 1-877-276-8437

do you have the foot down? if not your getting whats called a birdsnest just put the foot down and then press on the peddal and then there should be no more knots ( by foot I mean the metal part that goes over your material and the needle goes through)

Hi! The E6 error means the thread is tangled. I suggest you completely unthread the machine, including the bobbin. clean out any lint or bits of thread in the bobbin area, and carefully rethread.
Hope this helps!
Robbie

If your thread is not tangled .The E6 will come up also if the top thread is not threaded properly. Is your thread breaking at all ?