Instrument
whistles
or squeals
Speaker and dome/mold not fully
inserted
Re-insert the speaker and the dome/mold
Ear wax accumulation in ear canal
Consult your hearing care professional or physician
Consult your hearing care professional
Tubing may be split or improperly
connected
Consult your hearing care professional
No volume,
level too soft
or humming
noise
Instrument may not be turned ON
Check that the battery door is closed completely
Battery may be dead or inserted
upside down
Insert a fresh battery or re-insert the battery
correctly
Increase volume level with the control on the
instrument or remote control
Instrument may be in telecoil
position
Check to make sure you are in the intended
program
Wax lter blocked by ear wax
Dome may be blocked by ear wax
Ear wax accumulation in the ear
canal
Consult your hearing care professional or physician
Battery contacts may be dirty or
corroded
Open and close the battery door several times or
clean the battery contacts carefully with a clean
dry cotton swab