Dometic Fridge Cooling Unit Install guide for Dometic RM2652, RM3662, ect This video walks you through the step by step process of removing the factory installed cooling from the Dometic refrigerator and installing a new aftermarket, Arcticold built cooling unit with a lifetime warranty. Arcticold units are "Built Tough to Last a Lifetime". Please visit www.arcticoldstore.com for more info on Dometic & Norcold rv fridge replacement cooling units built by Arcticold.