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Help Oticon JET 2 DIED

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Hi everyone, I’m having an issue with one of my Oticon Jet 2 hearing aids and I’m trying to figure out what could be causing it.

The problem started with the hearing aid repeatedly reporting “low battery”, even when using brand-new batteries. I tried several fresh batteries from different brands and confirmed that the batteries have normal voltage.

Now the hearing aid behaves like this:

  • Insert battery → powers on
  • I can hear brief microphone/ambient sound
  • No normal startup/boot chime
  • After about 2 seconds, it shuts off completely

I’ve already checked and cleaned the battery contacts, and there is no visible corrosion, rust, residue, or obvious moisture damage. I also tried multiple known-good batteries.

The hearing aid is only about 7 months old.

Has anyone experienced this behavior with an Oticon Jet/Jet 2? Could this be related to the battery voltage sensing, power-management circuit, or another internal electronics issue?

I’m mainly looking for ideas on what could cause this behavior and what I should test next before sending it for service.

Does seem it's "return for service" time, have you used a dryer overnight? or given it a bit of heat with a hairdryer just to eliminate moisture in the housing.

What kind of dryer would you recommend? Would a cheap PTC-heater type be okay, or is it better to just use a sealed drying box with desiccant?

Sorry I don't use them myself so can't recommend which to use but the Phonak PerfectDry Lux has been mentioned a bit on the forum.

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