Hearing aids have the potential to significantly improve your life. These small yet powerful medical devices keep getting better, delivering clearer sound and more natural hearing with each new generation.
Table of Contents
- Weak or No Sound
- Whistling or Feedback
- Hearing Aid Falling Off
- Pain During Wear
- Moisture and Storage
Inside every hearing aid sits a dense arrangement of microphones, amplifiers, processors, and receivers. That complexity is what makes them so effective at converting sound waves into clear, amplified audio. It also means they need consistent care to keep performing well.
Hearing aids, while amazing features of technology, are not infallible and can be prone to damage, meaning you, as a wearer, need to know how to troubleshoot common issues to get the best experience possible when wearing them. Sure, at times, you might need to have them repaired, but knowing how to diagnose and resolve issues can help you avoid excess damage.
Here are some common hearing aid troubleshooting problems and how to fix them.
Weak or No Sound
You put your hearing aids in and nothing comes through. Or the sound is faint, muffled, barely there. This is the most common complaint, and the most common cause is a blockage in the tubing or receiver.
Start by inspecting the sound outlet and tubing for earwax or debris. If your hearing aid has a wax guard (most modern models do), check whether it needs replacing. Wax guards are inexpensive, and swapping one out takes about 30 seconds. Your audiologist should have provided a supply when you were first fitted.
Next, check the battery. For disposable batteries, peel the tab and wait a full minute before inserting. That brief exposure to air activates the zinc. For rechargeable models, confirm the charging contacts are clean and the aid sat properly in the cradle overnight. A damaged speaker or cracked tubing can also kill sound output.
If the tube is clear, the wax guard is fresh, and you have a fully charged battery, the problem likely requires professional attention. Contact your hearing care provider for evaluation.
Whistling or Feedback
That high-pitched squeal is called acoustic feedback, and it happens when amplified sound leaks out of your ear canal and loops back into the microphone. It is one of the most frustrating problems hearing aid wearers face.
The most frequent culprit is improper insertion. Remove the hearing aid, then carefully reseat it following the technique your audiologist demonstrated during your fitting. Make sure the dome or earmold creates a snug seal. Also check for wax buildup in your ear canal, since even a partial blockage can redirect sound back toward the microphone.
If repositioning does not solve the feedback, try lowering the volume one or two steps. Some hearing aids also have feedback cancellation settings you can adjust through a companion app. When none of these steps work, the hearing aid may need physical inspection for cracked tubing, a loose receiver, or other internal damage causing the noise.
Hearing Aid Falling Off
Your hearing aid will be custom-fitted for comfortable wear to fit your exact ear shape. If it moves when you wear it, it might need adjusting to fit properly again, much like a pair of glasses that became loose over time.
Weight changes, even a few pounds, can alter the shape of your ear canal enough to affect fit. The same goes for natural cartilage changes over time. Try switching to a different dome size if your model supports it. For behind-the-ear styles, a retention lock or sport clip can provide extra security during physical activity.
If manual adjustments do not help, visit your hearing aid provider. They can reshape the earmold or order a new one based on a fresh ear impression.
Pain During Wear
Hearing aids should never hurt. If yours causes discomfort, stop wearing it and investigate before continuing use.
First, examine your ear for redness, swelling, or signs of infection. An irritated or infected ear canal will make any device feel painful. Next, inspect the hearing aid itself for rough edges, cracks, or a warped earmold. Even a tiny burr on the shell can create a pressure point that worsens throughout the day.
If you spot no visible damage and your ear appears healthy, the fit may have shifted. Do not force yourself to wear a painful hearing aid. Contact your provider, who can evaluate both the device and your ear to pinpoint the cause and resolve it.
Moisture and Storage
Many hearing aid problems trace back to moisture. Sweat, humidity, and condensation corrode battery contacts, degrade microphone performance, and cause intermittent static or cutouts.
A hearing aid drying kit or electronic dehumidifier is one of the best investments you can make. Place your aids in the dryer every night. These devices pull trapped moisture from internal components and can prevent issues before they start. At minimum, open the battery door each night to let air circulate, and store your hearing aids in a cool, dry place away from the bathroom.

