Washing Machine Asynchronous Programming

washingMachine.js

(function(){
    let WashingMachine = createWashingMachineFromElement(this);
    WashingMachine.addEventListener("ready", function(){   
        WashingMachine.SetTemp(60, 'celcius', function(){
            WashingMachine.SetMode(MODE_NORMAL, function(){
                WashingMachine.Engage(function(){
                    WashingMachine.StartWashing();
                });
            });
        });
    }, false);
}().bind(bathroom.querySelector('#washingMachine'));

Error: washing machine not found
at bathroom:1:25

I think thi sis buggy code since the washing machine lives in the kitchen

Washing machine in the kitchen? o.O