Ear or Hearing Aid?
My two Costco KS 8.0s worked fine until a couple of months ago when I started to have problems with one. The introductory chimes in one HA faded progressively over several weeks to the point where it was almost impossible to hear. I assume that this was an accurate measure of overall HA performance on this side. Mysteriously the chime noise level, and hence my hearing on this side, has now started to rebound and is virtually back to normal. In theory this strange behaviour could be due either to the behaviour of my ear or the HA.
Sadly I am currently hundreds of miles from the nearest Costco HA centre. Does anyone have a possible explanation for this strange behaviour?