Hearing aid not working properly?

Nine times out of ten this is a blocked wax guard or dome. Change the wax guard, brush the sound outlet, and make sure the aid is fully charged (look for the charging light). Still quiet? Book in — cleaning and checks are part of your aftercare.

Whistling usually means sound is leaking back to the microphone: reseat the aid so it sits properly, check the dome or earpiece is the right way round, and consider whether ear wax has built up in your ear — a quick examination tells us. Persistent whistling is worth a fitting check.

Clean the charging contacts on aid and charger with a dry cloth, reseat the aids firmly until the light responds, and check the charger itself is powered. If a full overnight charge no longer lasts the day, book in — batteries and chargers are covered by your warranty and aftercare.

Often moisture or a part-blocked filter. Leave the aids in their charger or a dry case overnight, change the wax guard, and avoid hairspray and creams while wearing them. If crackle persists, we will check the receiver.

Restart your phone, then forget and re-pair the hearing aids in your phone’s Bluetooth settings and the brand app. Keep the app updated. One re-pair fixes most streaming complaints.

Swap-test nothing yourself — just note which ear and when it started, and book in. Differences between ears are exactly what your included aftercare appointments are for.