Ron, All the models with refer in the slide-out have fans built in.The models that vent through roof, do not have fans but as Doneworking says, can benefit by a small inexpensive fan. My old 2551 would not work well without an extra fan.
This post has created a few more questions for me. Sailor's request is for information on a fan unit that mounts on the inside of the refer. Unless I'm mistaken, I have read about fan units mounted on the backside. Can someone shed some more light on the subject?Doug
Looking for advice or,experience with the fan unit from RV Cooling Unit Warehouse, Model # SDL01. The one with 3 fans, mounts on cooling fins in box, hard wires thru drain tube. $72.95 on Amazon.Many thanks, Mike
The problem is not inside the refer it is the fins in the back that need the air circulation to cool better.