Frosty freezers

Today's refrigerators & freezers are built to be self defrosting. 

Generalized frost found in the middle or edges of the freezer is an indication the door was left open.

Frost on the back panel inside your freezer is an indication of a problem and should be addressed before your fridge gets warm. Pic 1.

Ice balls found on the evaporator behind the panel mean a refrigerant leak. Pic 2.