Siemens CENTRA User Manual page 22

PROBLEM
Sound is
distorted or
intermittent
"Buzzing" or
"whistling"
sound
Hearing
system does
not work
If you still encounter problems after trying these suggestions,
take the system to your hearing instrument specialist.
22
CAUSE
Clogged with wax
or excessive wax
in ears
Volume control too
high
Weak battery
Battery compartment Gently close the
is not completely
closed
Weak battery
Change to another
program
System not
turned on
Battery compart-
ment is not
completely close
Dead battery
POSSIBLE SOLUTION
Clean your instruments
or see your hearing
instrument specalist
Lower volume
Replace battery
battery compartment
Replace battery
System is in telecoil
mode
Turn on system
Gently close the battery
compartment completely
Replace with new battery