There is so much discussion about his. I'm dealing with it on a 2020 Dometic. First don't rely on the LED read out assuming yours has one. Get a digital thermometer for the frig and freezer.
https://www.amazon.com/AcuRite-Refri...908654109&th=1
Test it over a few days and get real temp results. Check your door seals by using a piece of paper or a dollar bill and place it in various ares, close the door and pull slowly. If there is no pressure pulling it out, the seals need to be replace. Place a battery operated fan in the fridge and see if that make a difference.
https://www.amazon.com/AcuRite-Refri...908654109&th=1
Check the drain tube and make sure it's clear. If you have a thermister on your cooling fins in the fridge, Slide it up to the top of the fin. Open the top exterior vent and make sure it's clear.
You can add external fans to draw hot air out and an internal fan to move air.
Lots of info on you tube. One last thing, my understanding is that an RV fridge lifespan is about 10 years. You could have a failing cooling unit which can be replace or upgraded. I'll let other chime in.
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
