I spent $180.00 on a tech to find out why my fridge wouldn't fridge. He couldn't tell us. We bought a small dorm style fridge to get us through the remainder of the season. When I got home I parked the RV on it's pad and plugged it in. I heard this noise like something frying. I unplugged and investigated. One of the heating tubes had an electrical fault. I bought two new tubes and replaced them. The fridge worked fine. Then I received the recall notices. Only they didn't fix the problem, they just removed Norcold of liability by shutting down the fridge if it overheated. I found out about the pancake cooling fans being wired wrong when I installed the new Amish unit and they never came on. I tracked them back, called the Amish supplier and he said the fans wouldn't work if wired backwards even if they are 12 volt. They work fine now and, like you, I keep my fridge on 5 to 7 instead of 9. And the new coils are definitely an improvement. Even the white color over the black looks better. Don't throw it away, replace the coils. I hope they keep their quality up as more people find out about them. With the help of my motorcycle jack I did the work on my own. Made me feel good when I turned it on and it worked great.
