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Phonak Marvel 90 RT with a very stiff button

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I have a newly acquired set of used Marvel 90-RT aids, in great condition. However the rocker switch on the right hand device is very stiff in the downward direction. It still works, albeit needing a bit more pressure to do it’s thing. It’s as though the rocker mechanism is slightly jammed.

Has anyone come across this in a Phonak Marvel or Paradise?

Yeah it’s actually not uncommon, it’ll need to be cleaned up, as in removing the housing and cleaning all the “gunk” from around and underneath the switch, it’s not that hard to do, just be careful you don’t lose the pins!

Thanks for quick response, @tenkan. I’ve not dared to open up the housing yet. Is there a guide to doing this knocking around? I note your advice re. the pins. It sounds like it comes from bitter experience?? :open_mouth:

Ha yeah I’ve lost a few over the years, but I’ve always been lucky to have spares around, but there’s some YouTube videos as well as as previously discussed posts.

How to replace hearing aid housing
What hearing aid? What are you using for a tool? Sometimes pin pushing requires a firm pressure. But firm pressure can be two different things. For example, using a pin tool with a handle, and using a flattened needle with no handle. How is your eyesight? In other words make sure you are pushing on a pin and not a microphone hole. Sorry if this statement seems too critical. It is not my meaning to be critical. You should post a picture of the hearing aid. A closeup cellphone picture works, and…

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