I don’t think so. It’s basically that the microphone sealing from damp (humidity, sweat etc) has failed and it needs replacing.
Ok in that case, you could remove the housing and clean, its not uncommon for it to be done,but have to be very careful there is a fine filter that is used and replaced by the factory, but you really need to be careful here, its very easy to make things worse, let the factory sort if possible.
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Is there a good guide to opening the housing?
There is something, I’ll see what i can find.
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Well, I just purchased a used pair af M90-r HA and the right one has this issue. So I too am looking for a solution. I haven’t tried swapping the speakers yet, but I will.
I’m still fooling with getting the Bluetooth streaming to pair. These things are always so finicky when it comes to pairing.
Thanks for starting this thread!
Rob
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I actually found one. You had posted it to a previous post of mine… So, double thanks…
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Thanks for the link! I found the problem is with the HA, not the receiver. (I wonder why they call the speaker the receiver…) The video was very helpful to take the case off the HA. I did that and left it in the food drier all night, but it still has the problem. I took off the rubber membrane that covers the mics and switches, and am trying a little more aggressive drying technique with the food dryer, but my hopes are not high.
I also found that you cannot use an M70-R with an M90-R if you want Bluetooth to both ears. The Phonak app allows you to pair with only one or the other, and looks for the pair of both the M70-R and M90-R. That is a disappointment. At this point, I have the choice of the M70-R pair I have been using or one M90-R or both M90-R, but a very annoying static. I suspect it is a microphone problem. I took off the rubber membrane that covers the mics and switches, and am trying a little more aggressive drying technique with the food dryer.
Does anyone have any other ideas?
Thanks,
Rob
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It looks like you’re not afraid to get in there, Rob… , 
Were the covers easily removed? And are the rubber membranes glued on it just a push fit. Did you have any issues with protecting the fine mesh that @tenkan mentioned?
BTW photos as you go would be invaluable…
you would have to set them up as a pair in Phonak Target programing software.
@GrayGhost i think @Zebras tried this and it didn’t work, in target it says incompatible when trying to pair M50 to M90, i guess you could probably program individually, but of course they won’t work as a pair.
OK … I was wrong … I was wrong once before.
Further to this:
If I turn noise reduction up as high as possible and speech focus all the way over to narrow, it almost disappears (but not quite).
Hey all good, i get things wrong to, we’re always learning here on the forums.
Cheers
Yeah could still be a issue with the microphone’s regardless, sometimes its better to get the manufacturers to sort the gremlins out, not sure on your warranty rights tho, if phonak did replace the microphone its not a big expense, last one i heard was about $150.
Yes, the only thing that might be confusing after watching the video is that the rechargable ones have a pin too. It is not only the battery ones. You might assume it was for holding the battery in only, but there is a similar pin for the -R units. You can separate the halves with your fingernail after pushing the pin out. You have to be careful not to lose the pin and the little lock that holds the receiver in. The rubber membrane just peels off. It goes back on okay even though I think there was a little glue gasket that was under it that has no stick left in it.
If I have time this evening I’ll take some photos and post them.
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Oh! I didn’t think to try the Target software. If you select them there together, then they will mate with the app? I hope so, because then I can use an M90-R with the M70-R. I’ll have to try it this evening.
Thanks for the tip!
Oh, too bad!! You had my hopes up!
The M90 has more technology than M70.
These differences are why they will not function properly as a pair.
Buying another aid or even another pair of aids off eBay can be very reasonable for the marvel aids. But that’s getting into self programming.
I went ahead and removed the housing…
Shock! Horror! The muck in there was a revelation. These must have never been cleaned internally!
Anyway, I brushed the muck away (very gently) and will leave overnight to see if there’s any improvement…
Photo 1: gunk at receiver end
Photo 2: gunk on microphone(s)
Photo 3: Top view after light brushing. (Sorry abt the blur…)
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Good job! You took one thing off my to-do list! Thank you!
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