This error often occurs at startup, as the machine prepares for stitching and the sensors can detect a resistance and the hand wheel is unable to rotate.
Check for thread caught in the bobbin area, sometimes a small dust bunny is hiding under the race. We recommend a picture taken with a phone and magnify the image up to find the offender (the torch on a phone is really useful too).
Is the hook seated correctly in the race?
Has auto needle threader slightly displaced and not returned fully home? Give it a gentle nudge upwards.
Do you have a bind of thread around the hand wheel?
Is there thread caught in the thread catcher? Use the thread catcher cleaning function in Settings.
If you are still unable to release the hand wheel please call us so we can assist you further.