Follow the steps below in operating the handwheel  1. Try to rotate the handwheel toward the back of the machine if it is locked up 2. Make sure that the thread is not tangled in case of which, re-thread the machine to free the handwheel 3. Turn off the power and unplug the machine. Remove the bobbin case by taking the needle plate off, then check if the handwheel turns freely. In case it does: re-install the bobbin case and needle plate by following the steps in the manual and skip step # 4. If it is not effective, move to the next step. Clear the hook area of any thread jam Clean the hook area of any debris Press the power button to turn on the machine Rotate the handwheel towards you once again to see if it works