Whistling Feedback
Oticon Hearing Aid
Severity: ModerateWhat Does This Error Mean?
Oticon hearing aid whistling is acoustic feedback — sound leaking back to the microphone. Common causes are a poor dome fit, earwax in the ear canal, or a blocked wax filter.
Affected Models
- Oticon Real
- Oticon More
- Oticon Intent
- Oticon Own
- Oticon Zircon
Common Causes
- Dome too small or worn
- Earwax buildup reflecting sound back to the microphone
- Volume too high for the current fit
- Blocked wax filter (ProWax miniFit)
- Damaged or loose receiver tube
How to Fix It
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Check the dome fit.
The dome at the end of the receiver tube should fit snugly in your ear canal. Loose dome = sound leaks around it. Request a larger size from your audiologist.
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Have your ears checked for wax.
Wax buildup reflects sound and causes feedback. Visit your audiologist or doctor — never use cotton buds, which push wax deeper.
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Replace the wax filter (ProWax miniFit).
Oticon aids have a small wax filter at the receiver tip. Use the dispenser tool to replace it. A blocked filter alters acoustics and contributes to feedback.
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Lower the volume in the app.
Use Oticon Companion to reduce volume by 1-2 steps. If the whistle stops, the aid is amplifying beyond what your current fit can support without feedback.
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Run feedback calibration at the audiologist.
Genie 2 fitting software has an in-ear feedback test that maps your ear's acoustics. Essential after any dome size change or wax removal — sets the aid's safe amplification limits.
When to Call a Professional
If domes and cleaning do not resolve persistent whistling, your audiologist can refit a different dome size, run feedback calibration in Genie 2, or replace the receiver tube.