I don’t understand why Resound have such a low IP rating, in comparison to other brands of aids. My Enzo2 is IP 58 also, it’s not 14 months old and has been back for repairs.
The problem came back as moisture, even though it goes in my processor breeze dry box every night along with my processor. The breeze goes for 8 hours overnight. I personally don’t have a perspiration issue but all my aids have had moisture problems.