A couple of years ago I found a thread on the forum here about the cooling issues with the absorption refrigerators. I knew about that from my family RV days growing up in the 1970's. Ice would form on the cooling fins from the condensation from the opening of the refrigerator door. That ice would inhibit the heat transfer from the internal air convection process.
One of the ways to deal with that condensation and ice formation is to install a cooling/recirculation fan from one of the vendors that runs on batteries or install a 12v one that blows on the cooling fins.
So I found a solution and posted it here.
One of the hard drive cooling fans eventually croaked in 2013 so I installed a computer case fan the same way. Alligator clips on the back connected to the Ground wire for the fan and the Positive connected to the hot wire on the fridge light. You can check which wire is always hot or powered on the light with a volt meter or a test light if yours differs from mine.
Relatively quick and cheap.
Hope this helps.
Chris in Virginia
2006 Sunseeker 3100SS/LTD
2008 Smart Passion Cabriolet TOAD
1986 Honda Helix (Original owner)