Under most normal circumstances and as an EMT. You should just turn off power to the fridge using the fuse box. However in this circumstance your best answer is to pull him away using a nonconducting material keeping yourself away from the fridge as much as possible. You would move him a safe distance from the fridge and listen for a pulse, breathing, and just to see if he is conscious. If he is pulseless, Apneic (not breathing), and Unresponsive you start CPR.
