Check the settings and door seals
Make sure the temperature wasn't bumped. Close a dollar bill in the door; if it slides out easily, the seal may be worn.
Clean the coils
Dusty condenser coils make the fridge work harder. Unplug it and vacuum the coils, usually at the bottom or back.
Give it space
Overpacking blocks vents inside. Leave room for air to move.
General information only, not legal or professional advice.