@mbrad51, you were mentioning an annoying fan sound, I was watching this Phonak Target tutorial video and remarked at min 10:37 the audiologist mentioning about “refrigerator humming”, maybe it is useful to you: https://youtu.be/PyWyUBKafuE
I never had this situation, maybe you find some hints there…
I for one am struggling with a Phonak Marvel trial, the sounds are nazal and like in a tin, and I get lower speech comprehension as in my older Phonaks, but I still hope it could somehow be resolved…