Trouble
shooting
Your Hearing Direct HD210 instrument is a reliable one. In case of
minor problems or malfunctions, you may be able to solve them
yourself.
20
Symptom
Feedback
‘whistling’
Is the dome or the thin tube inserted
correctly?
Are you holding your hand or an object (e.g. a
hat) too close to the instrument?
Is your ear full of wax?
No sound
Is the instrument switched on?
Is there a battery in the instrument?
Is the battery still good?
Is your ear full of wax?
Cause
Possible Remedy
Switch it on
Insert a battery
Replace it with a new one
Visit your GP
Put it in again
Move your hand away or create
some more space between
the instrument and the object
Visit your GP
