DIAGNOSIS The display is showing "unb". This is the "unbalanced load" error code for your GTW465ASNWW. The washer detected an uneven distribution of laundry during the spin speed calibration.
FIX Open the lid. Manually redistribute the load by pulling clothes from the outer edges towards the center agitator. Ensure heavy items (like towels or jeans) are not clustered together. Close the lid. Press the "Start/Pause" button to resume the cycle. The washer will re-attempt the spin.
IF THAT DIDN'T WORK The load may be too small. For spin balance, the washer requires a minimum load. Add 2-3 similar dry items to increase the mass and improve distribution. Run the cycle again.
HEADS UP Consistently overloading the washer is a more common cause of "unb" than small loads. Do not exceed the recommended fill line inside the basket. An unbalanced spin at high speed can cause physical movement and damage.