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Why is my Phonak charger not working?

Charging does not start. Indicator light on Phonak hearing aid does not light up when hearing aid placed in charging slots.

Potential reasons and recommended actions: 

  • Hearing aid not inserted correctly into charger: Insert hearing aid correctly into charger. 

Insert the hearing aids into the charging inserts. Make sure the left and right hearing aid markings match the left (L), right (R) indicators next to the charging inserts.  
The hearing aids will automatically switch off once inserted into the charger. The hearing aid’s indicator light will show the charging state of the battery until the hearing aid is fully charged. When fully charged the indicator light will remain on, i.e. solid green light. 


  • Charger not connected to power supply: Connect charger to power supply.


a.  Plug the larger end of the charging cable into the power supply.  
b.  Plug the smaller end into the USB port on the charger. 
c.  Plug the power supply into a power outlet.  
d.  The indicator light around the USB port will light up green when the charger is connected to the power outlet. 


  • Hearing aid battery fully discharged:  Wait three hours after placing hearing aid in charger, regardless of LED behaviour. 

  • Rechargeable charger models- charging does not start when the charger is not connected to a power supply. 
    Internal battery of the charger is fully discharged: Connect the charger to a power supply.  Rechargeable chargers have an internal battery. When disconnected from the power outlet, they will continue charging the hearing aids until the internal battery is empty.

Always make sure that the hearing aids and charger are dry and clean before charging. 

If the problem persists, contact your hearing care professional for assistance.