Your refrigerator is one of the heaviest items you'll have to move. Moving it down the stairs without caution and planning can lead to injury or damage to walls, .
To move the refrigerator down a flight of stairs, move it down one step at a time, your assistant easing it down onto each successive step. It would be ideal to have two people in front of the dolly and another at the back, holding the handles and letting it down slowly. Communicate loudly and don't go too fast.