> A fully analog/mechanical washing machine is just a big mechanical timer controlled relay behind the knob like a toaster oven. If you set it without power, it

> A fully analog/mechanical washing machine is just a big mechanical timer controlled relay behind the knob like a toaster oven. If you set it without power, it just runs through the timer without doing anything. My washer has dials to select the modes and then a final push button that activates an internal relay (guessing from the loud mechanical switching sound it makes when it goes on). If all you need to do is complete the circuit of the push button. You can just unmount that push button and hook its wires up to your timer mechanism which completes the circuit when the timer expires. The dryer on the other hand does have a mechanical timer. But that doesn't activate until you turn the dryer on with the push button. So you could set the time of the dryer and not turn it on either, and use the same mechanism as above.