Complete Guide to Hearing Aid Maintenance & Repairs

Close-up of a beige behind-the-ear hearing aid with cleaning tools, battery, and drying kit on a wooden table, representing a complete guide to hearing aid maintenance and repairs

Written by Jonathan Javid, Au.D. — Audiologist with 14 years of experience helping more than 10,000 patients care for their hearing aids.


Introduction

Hearing aids are a major investment in your health and independence. But just like glasses, contact lenses, or any medical device, they require regular care and occasional repairs to keep working at their best.

Neglecting simple steps — such as cleaning domes, replacing wax guards, or protecting them from moisture — can shorten their lifespan and lead to costly repairs. On the other hand, consistent maintenance can extend hearing aid life to 5–7 years or more.

This comprehensive guide covers everything: cleaning, part replacements, battery care, troubleshooting, seasonal tips, and when to call your audiologist. It links to in-depth tutorials across HearingInsider.com, so you always have expert-backed instructions at hand.


How Do I Clean Hearing Aids at Home?

Daily cleaning is the foundation of hearing aid care. Just as brushing teeth prevents cavities, wiping and brushing your aids prevents wax and dust buildup that muffles sound.

Step-by-Step: Daily Cleaning Routine

  1. Wash and dry your hands.
  2. Remove the dome (if detachable).
  3. Wipe dome and shell with a dry lint-free cloth.
  4. Brush microphones with a soft cleaning brush.
  5. Check wax guard and replace if clogged.
  6. Store in a drying kit overnight.

Case Example

A patient complained their hearing aid “sounded like it was under a blanket.” We found wax clogging both the dome and microphone. After a 2-minute clean, the sound was crisp again — no repair necessary.


When Should I Replace Domes, Tubing & Wax Traps?

Hearing aids rely on consumable parts that wear out over time. Changing them on schedule prevents performance drops.

Replacement Frequency

ComponentHow Often to ReplaceSigns of WearDIY or Audiologist?
DomesEvery 2–3 monthsLoose fit, discoloration, irritationDIY
Wax GuardsEvery 1–2 monthsMuffled or no soundDIY
Tubing (BTE aids)Every 6–12 monthsStiffness, yellowing, cracksDIY or Audiologist

Tip: If sound is weak in just one ear, check the wax guard first — it’s the #1 cause of “dead” hearing aids.


Moisture Protection & Longevity

Moisture is the leading cause of hearing aid breakdowns. Sweat, condensation, and humidity corrode microphones and receivers.

Seasonal Moisture Risks

  • Summer: Sweat and sunscreen clog domes. Always wipe after activity.
  • Winter: Moving from cold to warm causes condensation inside tubing. Use a dry aid kit nightly.
  • Travel: Airplane humidity and tropical climates require extra drying time.

External Resource

The Hearing Loss Association of America (HLAA) stresses daily drying to prevent costly failures (HLAA Guide).


Hearing Aid Battery Care & Troubleshooting

Batteries keep your devices running, but both zinc-air and rechargeable models have unique quirks.

Disposable vs Rechargeable: Maintenance Comparison

FeatureZinc-Air (Disposable)Lithium-ion (Rechargeable)
Shelf LifeUp to 3 years (sealed)3–5 years usable lifespan
Daily CareOpen door at nightCharge overnight
Common ProblemsSticker removed too soon = drainGradual loss of capacity in year 3–5

Case Example

One patient’s rechargeable drained in 6 hours. After inspection, we discovered moisture on the charging contacts — not a failing battery. Cleaning the contacts restored a full day’s charge.


Signs Your Hearing Aid Needs Professional Repair

Some issues can’t be solved with cleaning or part swaps. Watch for these warning signs:

  • Distorted or “static-like” sound
  • No response even with new batteries or charging
  • Constant feedback (whistling) despite correct fit
  • Physical damage: cracked shell, broken receiver wire
  • Moisture inside the battery compartment

If you notice these, schedule service. Attempting to fix electronics yourself can void warranties.


Repair Costs, Warranties & Insurance

Repairs vary by severity:

Repair TypeTypical Cost (Out of Warranty)Covered by Warranty?
Dome / Wax Guard$0–$10Not usually
Receiver Replacement$75–$150Covered 1–3 years
Microphone Replacement$100–$250Covered 1–3 years
Shell Replacement$200–$300Covered 1–3 years
Full Device Repair$300–$400Covered only in warranty
  • Manufacturer warranties usually cover internal failures (not moisture or loss).
  • Extended warranties vary — read carefully before purchasing.
  • For more details: Cost of Hearing Aid Repair.

Can I Repair Hearing Aids Myself?

Some tasks are safe DIY, but others require professional tools.

Safe DIY Repairs:

  • Cleaning domes & microphones
  • Replacing wax guards, domes, tubing
  • Using drying kits
  • Battery swaps

Audiologist Repairs:

  • Receiver, microphone, shell replacements
  • Internal moisture damage
  • Reprogramming or firmware updates

External Resource

The FDA warns against opening hearing aids yourself, as it can void warranties and damage components (FDA Hearing Aid Guidance).


Pro Tips from an Audiologist

  • Clean your aids nightly with a brush and cloth.
  • Always keep backup domes and wax guards on hand.
  • Avoid applying hairspray, sunscreen, or lotion while wearing aids.
  • Store in a drying box overnight.
  • Schedule an annual deep clean and programming check with your audiologist.

Conclusion

Your hearing aids are more than devices — they’re lifelines to communication. With consistent care, they can last years, provide clear sound, and reduce the need for costly repairs.

Use this guide as your one-stop resource for hearing aid cleaning, troubleshooting, and repairs. When in doubt, reach out to your audiologist — a quick professional cleaning or adjustment often prevents major issues.


About the Author

Jonathan Javid, Au.D., is a clinical audiologist with over 14 years of experience in the Department of Veteran Affairs and private practice. He has personally fit and maintained hearing aids for more than 10,000 patients. Jonathan also runs HearingInsider.com, where he shares expert-backed advice to help patients get the most from their hearing technology.

Jonathan Javid Au.D.

Jonathan Javid, a seasoned audiologist with an extensive background in the field of audiology. With over 14 years of invaluable clinical experience, Jonathan has dedicated his career to helping individuals enhance their hearing and improve their quality of life.

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