Hearing Aid Maintenance & Repair Flashcards

During a listening check with a stethoset, the clinician hears no sound from the hearing aid despite a new battery. What should be checked next?

Answer: Whether the wax guard is clogged or the receiver is blocked

A clogged wax guard or blocked receiver is one of the most common reasons for a complete lack of audible output even with a fresh battery.

What is the primary risk of using a hearing aid with a cracked or broken shell?

Answer: Acoustic feedback and potential for moisture and debris ingress

A cracked shell allows amplified sound to escape back to the microphone causing feedback and leaves internal components exposed to moisture and debris.

A patient who uses disposable zinc-air batteries reports their hearing aid dies within hours of opening a new battery. What is the most likely explanation?

Answer: The batteries were stored in a humid environment, depleting them prematurely

Zinc-air batteries activate on contact with air, and humid storage conditions can allow premature activation through packaging, draining them before use.

Which step should always be performed before cleaning the microphone port of a hearing aid?

Answer: Turn the device off and remove the battery

Turning the device off and removing the battery prevents accidental activation and short-circuit during cleaning near the microphone port.

What is the significance of IP ratings (e.g., IP68) on hearing aids?

Answer: They certify the level of protection against dust and water ingress

IP (Ingress Protection) ratings indicate how well the device is sealed against solid particles (dust) and liquids (water), guiding maintenance and usage recommendations.

A hearing aid is returned with a broken battery door. The patient cannot seat the battery securely. What is the recommended repair approach?

Answer: Replace the battery door with the correct manufacturer part

Battery doors are manufacturer-specific replaceable parts; using the correct replacement restores proper seating and electrical contact.

When should a clinician perform a listening check (stethoset evaluation) on a hearing aid?

Answer: At every hearing aid check appointment as part of routine maintenance

A listening check should be performed routinely at every hearing aid appointment to detect distortion, intermittency, or output issues before the patient reports them.