I’ve had a pair of Phonak Naida V UPs for a couple of months now, and they’ve been mostly good, but there’s one problem I’ve run into: both hearing aids have gone silent because a small filter or fiber screen in the earhook gets clogged/blocked somehow.
The first time was at the end of an evening contra dancing (being able to hear a dance caller well enough to have fun is pretty amazing), and I had an appointment with my audiologist the next day. I left it in a dry-aid jar overnight to no effect. At the audiologist’s, before we tossed it in the box and sent it off, we tried taking off the earhook, and the hearing aid started squealing away. We discovered a tiny filter in the earhook; removing that cleared up the problem.
The second time was just yesterday, on Mount Washington while riding a bicycle to the top, a suffer-fest of aerobic endurance. The other aid died, in much the same way as the first one. This time I was wise to the problem, took off the earhook and got rid of the filter, and I could hear again.
So something about heavy exercise gets this going, but it’s not easily clearable on the spot, unlike water condensation in the earmold tubing (which I also have trouble with).
Has anybody else had something like this happen with recent Phonak aids? Does anybody know the purpose of the filter, whether it’s an acoustic filter to tune the sound, or some kind of environmental filter to keep moisture, oils, etc. out of the hearing aid?