Thank you. I scheduled a tech to come out next week (earliest appointment).I think you need to have a refrigeration tech check the sealed system.
But, now the fridge is consistently getting down to my set target of 34 degrees F (then drifts up to 39 and cools back down to 34). I'm worried the tech will come out to tell me nothing's wrong.
To recap, here's what we did
1) Stopped opening RC door so much.
2) Removed excess dust from condenser coils.
3) Cleared RC drain pipe and cleaned and dried cabinet. Prior to this, there was so much moisture in the cabinet that the walls were dripping wet and the lower led light got flooded (even though it appears it's supposed to be sealed).