With my fridge , 7 year old GE ,all i can do is add insulation, I am in the process of insulating it, with the insulation in the inside and some on the outside.
The bottom inside of the fridge, nearest the mini fan cooled coil pack and the compressor, will get the thickest insulating.
The plans is to tape the seams and cover the inside foam with a hard washable surface.
I am going to enhance the air flow both in and out by making defined air channels,as it mixes now.
- Here's a tip for everyone -
Yesterday i turned my hot water heater down to a comfortable temperature,for use without the need of adding cold water.
I had enough of super heating the water just to add cold water to it.