I am wearing a used pair of Halo i110 hearing aids I got a year ago from ebay and copied the programming from my old aids to this set using the software and wireless programmer. They have been working fine for six months but do not seem to be working as well now. I’ve changed the batteries (of course) and changed the wax guards. I’ve opened them up to see if any dust or dirt is clogging the microphone ports. I’m not seeing any issues. I ordered a set of new snapfit receivers (a cheap thing to try, $50 for 2 on ebay), but I would not think that would be the issue. I have checked the iphone app and both aids report being turned up to the default volume of “41”.
The right ear is the most noticeable. When I run my fingernail over the two microphone ports on that one, the rear microphone does not seem to make much if any loud scratching noise. It makes me wonder if the rear microphone is not working on the right aid.
Anyone have any ideas how to diagnose further or how to fix if that is the issue?