The Norcold fride fans are fairly accessable once you cut a big chunk out of that baffle which I just did. That baffle has to be there for proper cooling air flow. My repair is a 12x18 piece of 26 ga galvanized steel cut to size (Home Depot ~$5.00) along with some #8x3/8 sheet metal screw to hold it in place.
Experience with a Dometic on a SOB - not so goo as those fans were out of reach unless the fridge was pulled. I cut the wiring, installed an adjustable temp switch and added 3 fans on a bracket at the upper vent.
The fans a for all intent, common 12VDC computer fans. I've just added two 120 mm low noise fluid dynamic fans, controlled by an adjustable snap thermal switch (
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1)