Refrigerator Fan

bobmacc wrote:
I installed two of these fans in my Norcold 1210. Found they moved a lot of air well in the fridge but they caused moisture to accumulate on the fins at both sides of the fridge and then freeze. This resulted in reduced cooling capacity when the fins iced as the thermistor was in the affected area. As a result, the fridge cooling deteriorated and I removed them. Seems like a great idea in theory but in my case, it failed in practice. Cooling is now much better without them.
I also added a 160cfm muffin fan at the top vent. In my coach, the fridge is in a slide and it is difficult to exhaust the heat out the sidewall vent so the fan helped considerably in Florida this winter. Since then, I added two additional 160cfm fans that I can switch on and hope this will work well during the hot summer. Time will tell. Sounds to me that I wouldn't be fighting these battles with a residential fridge so who knows what time will bring!

In your case, was the fan in the frig on a lower shelf or blowing over the fins directly. It seems that the goal is to move cooled air away from the fins. A fan in the vent channel exterior to the frig has worked well on hot days and an interior fan may not be necessary. But I have all the parts on hand if it would be a benefit. Thanks.