Since folks have brought this thread back to life, I'll add an update on ours.
Our OE MA52 is dead, as before. We could get it fixed up, but we'd need to ship the whole fridge across country (twice, obviously).
We decided in the end to get a new fridge, at least for now. The problem is that the new fridges aren't the same size. Here's the situation (all measurements in inches):
Dometic MA52 (original)
W 22 3/8
H 32 11/32
W 20 11/16
D 21 5/16
As you can see, the RM7401 is the closest size match. (Even then, we'll need to do some trim work to make it look good.) Alas, the RM7401 is also quite hard to get: Nearly everybody stocks the RM2351, but nobody (except DometicUSA itself) stocks the RM7401. It was a little challenging to find one.