Symptom Possible causes Solutions
No sound
Dead battery Replace the battery
Clogged earpieces (dome, Grip Tip, mould or Micro mould)
Clean mould or Micro mould or replace wax filter
Consider to replace dome, or GripTip
Hearing aid microphone muted Unmute the hearing aid microphone
Intermittent or
reduced sound
Clogged sound outlet Clean mould or Micro mould, replace wax filter or change dome or GripTip
Moisture Wipe battery with a dry cloth
Dead battery Replace the battery
Squealing noise
Hearing aid earpiece inserted incorrectly Re-insert the earpiece
Earwax accumulated in ear canal Have ear canal examined by your doctor
Beeping/LED
blinking (only
optional for Opn)
If your hearing aid plays 8 beeps, 4 times consecutively, and
repeatedly blink red 4 times with small pauses, your hearing aid
needs a microphone service check
Red, long blink
Contact your hearing care professional
Pairing issue with
Apple device
Bluetooth connection failed
1) Unpair your hearing aids (Settings➝General➝Accessibility➝Hearing Devices➝Devices
➝Forget this device). 2) Turn Bluetooth off and on again. 3) Open and close hearing aid
battery drawer. 4) Re-pair hearing aids (see chapter: “Pair hearing aids with iPhone”)
Only one hearing aid paired
If none of the above solutions work, consult your hearing care professional.
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