We bought the WT7400 to replace a 2.5 year old WT7300.  The WT7300 had power button issues 4 months after purchase.  Had LG technicians out for repair twice (Jan & Feb 2021).  Had good results until October 2022.  Same issues came back.  
Why did I purchase another LG Washer?  Not sure but we hope  the power button issues have been improved