I do know a couple of brands that have RFI issues right out of the box after working for a big box store for a few years. One is Samsung. It seems the higher-end machines are more prone to RFI issues but, anymore, it seems almost all of them do since they are nearly all made in China and those manufacturers are clueless about RFI.
I have two neighbors that have them and they show up throughout all the HF bands and I can listen to them and hear the agitator churning at two or three different speeds. Their DC motor controls generate most of this noise. An RFI filter on the AC line would help but, neither of my neighbors would allow me to put one on their washers. I made my own from a 20A RFI/EMI filter purchased on eBay and a 4x4 metal junction box, with a 1' male and female pigtail on either side. They worked great for me.