Hi, my name is Carolyn, I have the PE 150. When I thread the machine it will not pick up the bobin thread, it gives me an error message message that the upper or lower thread is cut. but it is not

Check that the needle is in the right way, flat shank to the back. If it is around backwards, the shuttle hook won't be catching the thread at the back of the needle to form the stitch.

Try completely unthreading and rethreading it. You may also try using a different bobbin.

Make sure that you have a tail on the bobin thread when in place and a tail on the needle thread, hold the needle thread and turn the wheel to bring up the bobin thread before trying to sew

your tension release unit is stuck or slipped out

change the needle, if bent it may skip, use top thread while holding to pull thru, turn bobin around to turn in oposite dirrection, bobins usually turn in 1 correct dirrection

i think you will find the motor is not working

upper tension/threading wrong?

The upper thread sensor on most Brother's is activated by the check spring. Either your check spring has broken or is stuck. You may be able to fix this if you can get to it. A drop of oil may be all you need. I may be able to give more specific advise if you tell me what model it is.

Good luck!

My pe-150 embrodery machine is not grabing the tread right since I changed the needle out it keeps promping me to check my threading

i think your putting in your bobin backwards,
to check put your bobin in and hold bobin , and bobin case by thread if it unrolls its backwards,
hope this helps!!