T R O U B L E S H O O T I N G G U I D E
S Y M P T O M
No sound
Not loud
enough
Whistles
Sound not clear
or distorted
If there are any other problems not mentioned in this
guide, please contact your hearing care professional.
26
C A U S E
• Not turned on
• Dead battery
• Battery improperly inserted
• Blocked ear mould
• Blocked sound outlet filter
• Loose ear mould
• Blocked ear mould
• Change in hearing
• Excessive ear wax
• Blocked sound outlet filter
• Volume set too low
• Loose ear mould
• DFS needs re-initialization
• Weak battery
• Poorly fitting ear mould
• Hearing instrument damaged
• Hearing instrument settings
not optimal