Volume Fluxuating when watching TV or listening to Ipod books Phonak Nadia B90

First time Phonak user. Oticon before these.
I don’t touch anything and the volume from the tv or ipod goes way up to an uncomfortable level. Stays that way for maybe 20 seconds then goes back down. My audiologist does not know why.
Anyone have any ideas?

I’m wondering why you switched from Oticon to fonak?

Are you using a Phonak ComPilot whiles listening or how are you listening?

It could be the program your using try to adjust. Your audi could make a little more effort than just saying he doesn’t know