First blowy, cloudy fall day fingers chilled on keyboard. Push, wiggle, wiggle -- plug firmly seated in socket. Check. Orange glowy Power light. Check. Twist -- dial slides round a quarter turn. Now, wait for it....yes! Smell of warm dust! “Tounk” thermostat switches off, “tic, tic, tic” of momentary cooling, “tounk” thermostat switches on. Everything is a cycle.