washer whirl give me error UL .

Hi. You could have a bad hub. P# W10820039. I believe if the hub is faulty you will get the UL error. Also, bad tub bearing will give the UL error when they get really bad. If the bearings are bad the unit will be loud in spin and a lot of the time you will get black marks on the floor under the unit from dirty water leaking through the bearings. Check the diagnosic mode for error codes and run the auto test. I have attached the tech sheet for you and some videos as well.