Refrigerator Fan Noise

I had all the same complaints... 2012 Fleetwood Storm; Dometic frig, in full wall slide, in & out vents in side of slide. Fleetwood mounted a computer type axial flow fan just below the condenser coils. To get to it without pulling the refrig, I had to do some minor surgery to a 1/8" plywood baffle that was blocking access, but that was only a minor challenge. One of the purposes of the fan is to start the column of air moving and keep it moving. Does not take a huge CFM to do this. At a local electronic surplus store, I located a blower fan (not an axial flow fan) canibalized from some high tech equipment. It happened to be a 24 volt fan, but on 12 volts it just runs slower and quieter. Because it had a ~5" square blank flat side, I applied Liquid Nails adhesive to it and glued it to a piece of 2" thick polyethylene foam packing material. And then glued the foam/fan assembly to the rear wall of the refrigerator and connected it where the axial flow fan had been connected. The result: Nearly silent fan operation and even better efficiency. Axial flow computer type fans typically used are high speed and noisy and any vibration is transmitted by the refrig and/or the RV sheet metal. The "blower style" fan axis is perpendicular to the mounting surface and minimizes forces that create vibrations, and the significantly slower speed almost eliminates noise from the fan blades or air movement. I think I paid $5 for the fan.