ReSound BE70 User Manual page 44

Troubleshooting Guide
SYMPTOM
Excessive whistling / feed-
back
Sound distorted / not clear
Wireless does not work
44
CAUSE
Incorrect earmold placement
Incorrect dome placement
Excessive ear wax
Feedback control may need adjustment
Earmold tubing worn or damaged
Thin tube connection loose
Hearing instrument settings not optimal
Weak battery
Improper earmold or dome fit
Hearing instrument damaged
Hearing instrument settings not optimal
Possible Root Cause - Device is in flight mode