
The sound is
intermittent or
volume goes up
and down
1. Check for sound
2. Check alignment
3. Check your settings
4. Reset your processor
5. Check the batteries
6. Try a spare battery holder
7. Check the coil
8. Try a spare controller
Make sure you are in an
environment that is loud enough
for you to hear.
See
Attaching the Processing Unit
to the controller
Check that your sensitivity,
volume and program are suitable
See
Resetting your processor
See
Changing batteries
See
Changing batteries
See
Changing the coil
See
Attaching the Processing Unit
to the controller
The sound is
too loud and
uncomfortable
1. Check your settings
2. Reset your processor
Check that your sensitivity,
volume and program are suitable
See
Resetting your processor
The sound is too
quiet or muffled
1. Check your settings
2. Reset your processor
3. Clean the microphone ports
4. Replace the microphone
protector
Check that your sensitivity,
volume and program are suitable
See
Resetting your processor
See
Cleaning
See
Changing the microphone
protector
You hear
interference such
as buzzing or
distorted speech.
Try moving away from any
electronic device that may be
causing interference, for example
buzzing sounds or distorted
speech.
Common sources of interference
include:
• Radio and TV transmission
towers
• Mobile phone towers
• Shopping centre and airport
security systems
• Some digital mobile phones
• Battery chargers
• Fluorescent lighting
• Mains power boards
62 - Nucleus Freedom User Manual
© Cochlear Limited 2014
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