Beech Lane 12V RV Fridge Fan, Wired Connection Provides Constant Power, No Batteries, More Air Output Than Battery Fans, On and Off Switch, Recirculates Falling Cold Air

Before you do any of the things i did, maybe buy some thermometers (https://www.amazon.com/dp/B097HF322L) to check whether the fridge is getting cold enough or not. Here are my tips: Add 1-2" of polystyrene insulation to the fridge body (whichever fits), I bought a hot knife (https://www.harborfreight.com/130-watt-hot-knife-70931.html) to cut it and it saved so much time and made no mess 1000% recommend. I bought this fridge fan (https://www.amazon.com/Beech-Lane-Connection-Batteries-Recirculates/dp/B0B7SCYGK7), you can splice it into the fridge light or just drill a hole out the back and run the wire through there. My fridge has a small freezer and that is where the cold comes from, so i pointed the fan at that so it can blow the cold air to the rest of the fridge. I've been having a problem with my fridge since I bought it (TruckFridge 130), it has always struggled to stay cool so I bought this thermometer (https://www.amazon.com/Inkbird-Temperature-Controller-Fahrenheit-Thermostat/dp/B019I3YCFS) to replace the one it came with; it works so much better My fridge has a compressor with a 120mm fan sucking hot air away; I replaced it with a more powerful one, then added an extra fan so that it blows on the compressor to create a wind-tunnel like thing.