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Troubleshooting
1. Instrument makes a whistling sound
• Whistling (feedback) occurs when
amplified sound returns to the
microphone and is re-amplfied.
Most hearing aids (even ones
costing thousands of dollars)
will whistle when not inserted
properly into the ear canal.
• Confirm that the hearing aid is
working properly by removing the
aid and covering the hole in the
tubing/domes with your finger
(the whistling should stop).Try
pulling your ear up and back and
reinserting ear piece into ear so it
fits better (or try a different sized
ear piece).
24
• Clean any wax that may be
interfering with the hearing aid.
• Sometimes feedback may occur
when you have a blockage of wax
in the ear canal, a stiff eardrum
(from a cold, for example) or any
condition that causes sound to be
reflected from the ear canal. In
these cases, the fit may be fine,
and the feedback will disappear
when the condition is corrected.
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