Replaced gearbox after old one started squeaking during spin cycle. Followed all directions and performed the calibration in diagnostic mode as the included directions indicated. I thought all was well until we tried to wash a load...the lid locked and indicator light lit for Sensing, but then lid unlocked, then relocked and the cycle continued. Water will fill the tub but it will bang around inside case during spin. I ran the automatic tests and manual tests from diagnostic mode. The only error during those i found was the lid lock button flashing, not sure why. Suggestions to stop tub from getting out of balance?