After my post yesterday I started looking into "The Fridge Defend" and decide to place my order after trading a bunch of emails with the owner. I too have a Norcold N611 and have trouble with it cooling when it is hot, but my biggest worry is that of a fire from an overheated fridge. About 50% of RV fires are reported to be from refrigerators and I saw one a couple years ago and that is when I started looking into a solution. . After reading all about the Fridge Defend I realized that it addresses all my issues, including that of a fire, heat on the shelf directly above the fridge and a blower system inside the refrigerator that only runs when the fridge is actually cooling. My fridge is in the slide so I ordered the fridge defend and fan kit with an intake fan, exhaust fan and one to move air inside the fridge. If anyone is interested, I will report back but the install looks pretty simple after reading the literature and watching a few video's.
I ordered Kit #4.
https://www.arprv.com/purchase.php