We were potentially on our third in less than a year and gave up on Samsung. Went to a GE Profile Microwave/Convection oven Model# PVM9179SFSS. We had posted a previous question for suggested replacements ourselves and there were several that had gone this route as well as a Sharp model microwave/convection. Do not remember the Sharp model.
The removal and reinstall went real well. We removed the old one and were going to have someone put in the new one, real challenge finding people willing to install anything in an RV. We had to go to Motor Home Specialists for some quick work on the 1/2 bath and replacement of the water pump and our favorite technician, Corey, put the new one in for us much quicker than I ever could have. I will say it was easier to do than the one we did in the home just before we sold it. Had we done it that is. It was a lot easier since Corey did it...