signia Active User Manual page 92

Problem and possible solutions
Hearing instrument emits whistling sounds.
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Reinsert the ear piece until it fits securely.
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Decrease the volume.
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Clean or exchange the ear piece.
Sound is distorted.
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Decrease the volume.
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Charge the hearing instrument.
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Clean or exchange the ear piece.
Hearing instrument emits signal tones.
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Charge the hearing instrument.
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