Was having trouble with Frig.

I have a 1990 Dometic and it is bulletproof if you keep all connections clean. This is not to say it can't or won't fail, it is just in my experience with my fridge and a lot of Servels from the 40's and on that don't have processor based boards. I've had two "failures", both were contact failures. One required replacing a corroded faston and one just cleaning stuff.

If one is not experienced with or not interested in learning trouble shooting, then the OP's decision is best with the exception of buying the board first.