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Deep cleaning

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Anyone have a good deep cleaning technique for your microphones? I try and clean my Resound Quatros fairly regularly, but one of the back microphones is either extremely clogged or just malfunctioning. I can brush my fingers agains all the microphones and get a loud sound out of them, except for the rear right microphone. I’ve brushed and brushed with no change. Does anyone use a cleaning solution or a vacuum to clean?

Thanks for any suggestions!

I have the same hearing aids.
Did you know that there is only 1 microphone on each hearing aid?
Im not sure exactly which one it is but all the other holes are for ventilation.

@DaveF said:

only 1 microphone

I have the Nexia and had the left aid microphones both quit working (the aid still worked with the M&rie mic.)… I removed the cover and cleaned with eletrical cleaner and a bursh inside and blew it out with air … I am quite sure there are two microphones
It did not help at all … sent both in for repair/replacement (mine were still under warrente ).

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