Operating instructions
28
Cause Possible remedy
No sound
Not turned on Turn on
Low/dead battery Replace battery
Poor battery contact Consult your hearing 
healthcare professional
Battery upside down Insert battery plus (+) side 
up
Custom shells/
domes blocked with 
ear wax
Clean custom shells/ 
domes. See “Cleaning your 
hearing aids”. Consult 
your hearing healthcare 
professional.
Plugged microphone shield Consult your hearing 
healthcare professional
Troubleshooting guide










