43
Problem
Possible causes
Solution
Hearing amplifier emits
unpleasant whistling
sounds.
The earplug of the hearing am-
plifier does not fit in your ear
properly. This may cause un-
pleasant whistling sounds
(acoustic feedback) and impair
the functioning.
Try again with another earplug. It
is recommended to use an earplug
that fits properly. If you have any
doubts, please contact Customer
Services.
The hearing amplifier micro-
phone is covered.
Do not cover the hearing amplifier
microphone with parts of the ear
or large portions of hair. This may
encourage acoustic feedback.
The hearing amplifier is set
too loud.
Lower the hearing amplifier volu-
me as described in chapter 7.
LEDs on the
charger won’t light up.
The hearing amplifier may not
be correctly placed in the re-
cess, or the USB cable is not
connected properly.
Check whether the hearing amp-
lifier is correctly placed in the re-
cess, and check whether the USB
cable is correctly connected with
the storage box and the mains
part.
