Fun fact: Speed Queen also uses IrDA as a communications method on many commercial washing machines for programming and diagnostics.

They used to use a PalmPilot (and a WinMo) app. Nowadays it can be done with a PC with a weird NFC-based interface they’ve built with a wand you hold in front of the control panel in a specific location.

https://www.youtube.com/watch?v=thnxm821yco