26 Troubleshooting guide
SYMPTOM
Feedback, "whistling"
No sound
60
CAUSE
Is your earmold or dome inserted correctly?
Is the volume very loud?
Is the plastic tube or the earmold clogged or broken?
Are you holding an object (e.g. a hat, a telephone receiver) close to a
hearing aid?
Is your ear full of wax?
Is the hearing aid turned on?
Is the hearing aid in telecoil mode?
Is there a battery in the hearing aid?
Is the battery still good?
Is the plastic tube or the earmold clogged or broken?
Is your ear full of wax?