I have a kenmore dehumidifer and I am in the procees of checking it out.
It needs a new display PCB, and before I spend any good money I would like to know if its working OK.
So far it does seem good but I am getting some frost build up on the front coils. My question is how much is good , how much is bad and what is normal?

Right now its about 25% covered down from the top.

Thanks