Can't recommend as most know i'm UK based, but i have had the same problem with an RMS8501, my van is now a 2019 Autotrail Imala and i had the same problem, it was ok before xmas and then my first trip out this year in march the fridge was dead, It turns out both circuit boards had blown , there's one at the front and one at the back of the fridge.(don't know why but they had been changed before ) .I got a local caravan and motorhome place near me to sort it and it cost me a hefty £665 . the panels inc vat were almost £200 each. As i have a 3 year warranty with Brownhills at Newark who i bought the van off in November i thought it would be ok until i put a claim in and guess what the boards which are the most expensive part of the fridge were not covered. This is van number 7 in 20 years and i wish i hadn't changed from the Tribute .(which incidentally was the same van as this but 5 years older and the cheaper version). Also had problems with the grill on the stove but that's a different story.
