Your hearing aids work hard every single day. And like any precision device you rely on constantly, they occasionally need attention. The good news? Most common issues have straightforward solutions — many of which you can handle right at home.
Here's a practical guide to diagnosing and resolving the problems we hear about most often at San Antonio Custom Hearing.
Sound Sounds Off? Start Here
Distorted, muffled, or unclear audio is one of the top complaints we receive from hearing aid wearers. Before assuming something is seriously wrong, check the basics.
Clean the Microphone and Receiver First
Earwax and debris are the most frequent culprits behind poor sound quality. Your hearing aid's microphone and receiver are tiny — and they attract particles from everyday use. Use the cleaning brush or tool that came with your device to gently clear any visible buildup. A soft, dry cloth works well for the outer casing.
Make this part of your nightly routine, and you'll prevent most sound quality issues before they start.
When Cleaning Isn't Enough
If the sound remains distorted after a thorough cleaning, look closely at the device itself. Moisture exposure or physical impact can damage internal components in ways that aren't visible from the outside. If you suspect internal damage, it's time to bring the device in — our Schertz, TX clinic can assess whether a repair or adjustment is needed.
Your Hearing Aid Goes Silent
No sound at all is alarming, but it's rarely a sign of serious damage. Work through this checklist before panicking.
Check the Battery First
A battery that's slightly dislodged won't make full contact — and your hearing aid simply won't work. Open the battery compartment, reseat the battery firmly, and try again. If it's been a while since you replaced it, swap in a fresh one. This single step resolves the issue more often than you'd expect.
Replace the Wax Guard
Your hearing aid has a small wax guard — a filter designed to keep earwax from entering the device. Over time, that filter gets blocked and cuts off sound entirely. Replacement wax guards are inexpensive and available through your provider. Swapping one out takes about a minute and frequently restores full sound immediately.
Confirm the Device Is Actually On
It happens to everyone. Double-check that your hearing aid is powered on and not accidentally muted before moving on to more complex troubleshooting.
Whistling and Feedback
That high-pitched squeal is called feedback — and it happens when amplified sound leaks out of your ear canal and gets picked up by the microphone again, creating a loop.
Fit Is Almost Always the Issue
A hearing aid that fits well rarely whistles. If yours is loose, shifted, or the earmold has become less snug over time (ear canal shape can change), feedback becomes chronic. Try reseating the device first. If whistling continues regularly, it may be time for a new earmold or a professional fit adjustment — both of which we handle routinely at our San Antonio area office.
Battery Draining Too Fast?
If you're replacing batteries far more often than usual, your usage habits may have shifted without you realizing it.
Two Things to Check
- Are you leaving the device on when it's not in your ear? For disposable battery models, opening the battery door fully when you remove your hearing aids acts as a power-off switch.
- Are you streaming audio directly to your hearing aids? Bluetooth streaming is convenient, but it draws significantly more power. Heavy streaming days will shorten battery life noticeably.
Rechargeable models eliminate most of this frustration — ask us whether your current devices support that option or if an upgrade makes sense.
Protecting Against Moisture
Moisture is one of the most common — and preventable — causes of hearing aid damage. Sweat, humidity, and the occasional unexpected splash all take a toll over time.
What to Do If Your Device Gets Wet
Act quickly. Remove the battery (if applicable) and place the device in a hearing aid dryer or a sealed container with silica gel packets overnight. Do not use a hairdryer, microwave, or any direct heat source — the internal components are sensitive, and heat causes more damage than the moisture itself.
A dedicated hearing aid dryer is a worthwhile investment if you live an active lifestyle or spend time in humid environments.
When to Bring It In
Home maintenance handles most issues. But some situations call for professional attention:
- Problems that return repeatedly after you've addressed them
- Physical damage to the casing, tubing, or receiver wire
- Sound that's consistently poor despite a clean device and fresh battery
- Feedback that persists even with a proper fit
Regular check-ups also matter — not just when something breaks. Routine visits allow us to fine-tune your settings as your hearing needs change and catch small issues before they become bigger ones.
The Simplest Strategy: Stay Consistent
The hearing aid wearers who experience the fewest problems are almost always the ones who maintain a simple daily routine: wipe the device down at night, store it properly, replace the wax guard on schedule, and keep it away from moisture.
Consistency costs almost nothing and prevents the majority of repairs.
---
If you're experiencing an issue that home troubleshooting hasn't resolved, contact San Antonio Custom Hearing to schedule a service visit. Our team serves patients throughout the Greater San Antonio Metro and Schertz, TX — and we're here to make sure your hearing aids work the way they should.