During a daily walkaround, I discovered the fan box on our Monterey hanging radically askew. I was lucky because I didn't normally glance through the streetside rear body panel louvers, and minimal damage had been done as yet. We'd only had the coach a few months and were still in break-in/shake-down mode, and I was new to diesel rigs. On the road in Boise, Monaco authorized a repair by a non-Monaco RV dealer.
The factory mounts were obviously inadequate, and had allowed the fan and shroud to slip down, scratching some radiator fins in the process, and doing a little other damage, similar to Mark's photo above but with no punctures; the mounts at the top that came down with the unit did most of the harm, as did, as I recall, the fan motor. The fan was still operational. The wires were just about the only thing holding things up at all.
The Boise technician engineered and fashioned new mounts and a whole new bracket for them to attach to, and I added minor improvements and rubber cushioning, and carefully realigned damaged radiator fins. Between the two of us we made the system that Monaco should have built in the first place, and the tech's redesign was vastly more substantial. Theirs was pretty rinky-dink, and essentially a unit failure plus ancillary damage waiting to happen.
Like Mark, I urge fellow owners with similar coach builds to open that rear louvered panel (a couple screws may hold it underneath), and thoroughly check that their AC fan unit is securely mounted, esp. along the top edge. If it comes loose, you could suffer consequences like he did. Re-engineering the top mounting arrangement may be your best preventive move, and isn't too difficult after a trip to a homecenter or hardware store. As an addendum, I had to do a little rebuilding of the rearmost louvered door bottom screw mount, as we discovered it didn't properly line up where it should have to secure that part of the door. As most of us have discovered, some parts of coaches were put together just too quickly on the production line to be done right.
-Joel
