[mzkply]

or... maybe there's so much volume at the top of washing machines (above the water, where the controls are) that you could place the board there, where chips: - don't need waterproofing - don't need to be tightly integrated - can be fully COTS since the logic is relatively dead simple

[jacknews]

I've had 2 washing machines die in as many years, and the electronics were encased in silicone.

Of course, a repair involves replacing the entire proprietary electronics assembly (multiple PCBs, and plastic frame), and is just not economical, so the entire machine, valves, motor, steel drum and cabinet, are written-off because a mosfet failed, or whatever.

If the electronics were standardized and modular, even if encased in silicone, there would be an economic case to replace just failed modules.