generally an upright freezer has no fan - the coolant circulates just inside the skin of the thing to shed heat... very possible that the pump just puked if turned on and off a couple times in rapid succession, they should have logic to wait 5 minutes before turning back on when power is applied, but most don't... just unplug it, let it sit for an hour, and then try plugging it in again... hopefully the coolant and oil will settle down and the pump can spin up...