The fridge in our Seville takes a bit to cool down as well. I generally give it at least 24 hours or longer since this is the first one we've had with the double-door refridgerator. With the cooling set on 7, it runs about 33° in the fridge, 10° in the freezer depending on the outside air temp so we generally start on 7, then may drop back to 6. There is a temperature controlled fan attached to the coils that helps the evaporator work and should cycle as needed.
Our fridge is a Norcold and in the owners/service manual, there is a key sequence that puts the door display into diagnostic mode. I use that to see what the ambient and fin temps are in both the freezer and refrigerator sections. I suspect the Dometic has the same.
Keep in mind that the cooling setting on the bigger Dometic and Norcold units has to be set higher than on the smaller single door units. I wish all these units came with factory installed external temperature readouts. It would make keeping an eye on them so much easier.
Hopefully yours is just a setting issue and not a problem. You indicated that the fridge section only came down to 50°. If you set the cooling level lower, does it come down more? Also, do you hear a fan (outside) come on intermittently (depending on whether the Rushmore has the fan but I believe it is installed on the refrigerator cooling fins)? Does your freezer have fan in it as well that comes on when the fin temp gets low enough? The Norcold freezer fan will come on at about 11° fin temp.
38° - 42° is supposed to be the safest temp for the refrigerator. We had a problem on our first trip out with the Seville when the control board went haywire. I had to put all the stuff in the fridge on ice for a couple of days till we figured out how to bypass the problem. Then Randy and the Norcold tech support guys figured out how to temporary bypass the problem and then fixed it when we got back.
Enjoy the Rushmore, those looked really nice when we toured the factory prior to the announcement.
Edited by: WoodcarvingGypsy
Al & Linda
2013 GMC Denali 3500HD SRW, Crew Cab, Std bed, 6.6L Duramax, Allisons, PullRite Superglide, Triglide
2011 Crossroads Seville VF35CK11