If, after only a few stitches, your Brother embroidery machine gives a ‘check upper or lower thread’ error message, then the problem could be in the spring in the upper tension. The video below shows how to fix the tension spring problem, thus saving both time and money from the embroidery machine going into the shop for repairs.
Check Upper and Lower Thread Message Repair:
If the tension spring is not the problem, then also check out the thread tension. Check out our article on How to Fix Top Tension Problems.