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Published 11 Dec 2025

How to Fix a Hearing Aid That Cuts In and Out – Top 5 Causes & Fixes

Is your hearing aid cutting in and out? Learn the top 5 reasons why this happens and how to fix it — plus when to get expert help from HearingGuru.

How to Fix a Hearing Aid

Introduction

You’re having a conversation, and suddenly your hearing aid goes silent. Then it returns. Then cuts out again. It’s frustrating, and it can happen without warning.
If your hearing aid keeps cutting in and out, you’re not alone. This issue is common — and often fixable.
Let’s explore what causes it, how to fix it, and when to reach out for expert support.

Common Signs Something’s Wrong

  • Hearing aid turns off randomly during use
  • Sound cuts out briefly and returns
  • Device works in one environment, but fails in anotherAudio interruptions happen during phone calls or Bluetooth use

What Causes Your Hearing Aid to Cut In and Out?

1.

Weak or Dying Battery

Weak or Dying Battery

When a hearing aid battery gets too low, the device may turn off without warning, then turn back on briefly before dying again. This can cause that frustrating 'on-off' pattern. If you're using zinc-air batteries, make sure you let them activate properly after removing the tab. For rechargeable models, low charge or faulty battery cells can cause similar behavior.

2.

Moisture or Sweat Damage

Moisture or Sweat Damage

Moisture is a silent killer of hearing aid performance. Even a small amount of sweat or humidity can interfere with the electronic components. This may result in random cutouts,static, or complete sound loss. If your hearing aid feels warm, sticky, or has been exposed to rain or showers, dry it thoroughly using a dehumidifier overnight.

3.

Blocked Microphone or Receiver

If the microphone or receiver is blocked by wax, dust, or skin oil, it can prevent sound from reaching your ear properly. In many cases, users think the aid is shutting off — when in reality, it’s just muffled or faint. Cleaning these parts regularly is essential.

4.

Loose Battery Contacts or Dome Fit

Loose Battery Contacts or Dome Fit

Loose battery doors or weak contact points can cause momentary loss of power. Similarly, if the dome doesn’t seal well inside your ear canal, it may move and affect sound delivery. Both of these physical connection issues can result in your hearing aid turning off and on as you move.

5.

Faulty Wiring or Aging Device

Faulty Wiring or Aging Device

With time, hearing aids — especially BTE models — can develop internal wiring faults. Repeated bending or impact can loosen connections or damage the receiver wires. If your aid is more than 3–4 years old and shows this issue frequently, it might be time for a repair or upgrade.

How to Fix It (Try These First)

1.

Clean and Reseat the Battery

Clean and Reseat the Battery

Remove the battery and wipe both the battery and contact terminals with a clean, dry cloth. Ensure there's no corrosion or moisture. Insert a fresh battery and close the door firmly. For rechargeables, dock the device for a full charge and check for blinking or solid indicators.

2.

Dry the Hearing Aid Overnight

Dry the Hearing Aid Overnight

Use a dedicated hearing aid dehumidifier box or a dry kit. Moisture often collects in the mic and receiver ports — drying removes hidden condensation. This step alone can restore full audio in many cases, especially after a humid day or workout.

3.

Clean the Dome and Microphone Ports

 Clean the Dome and Microphone Ports

Use the cleaning brush or wax loop provided with your aid. Carefully clean the dome, mic mesh, and receiver area. Don’t push wax deeper. If heavily clogged, replace the dome or mic cover completely.

4.

Test with Another Dome or Fit Insert

Test with Another Dome or Fit Insert

Try swapping the dome for a new one of the same size. If it keeps slipping, try a larger size for better grip. Loose domes cause acoustic feedback and may feel like sound is 'coming and going.' A better fit usually solves this.

5.

Update or Reset the App (for Bluetooth Models)

Update or Reset the App (for Bluetooth Models)

Uninstall the hearing aid companion app and reinstall it. Restart your phone and hearing aid. Pair the devices again from scratch. Some audio cutouts are due to software conflicts or updates. Always check for firmware updates if available.

When to Get Professional Help

📣 Still experiencing cutouts?

  • Internal components might be failing
  • Wax may be deeper inside the tubing or receiver
  • Firmware or app may need expert reset

👉 Book Free Diagnosis + Pickup from HearingGuru

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💬 Over 35,000 users across India trust HearingGuru for expert repair and support.
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Real Case: Intermittent Sound in Phonak Audeo

Mr. Ravi from Pune reported his Phonak hearing aid was cutting out during calls. After testing, our audiologist found a moisture-damaged mic. A 48-hour repair fixed the issue completely.

Expert FAQ’s

Q: Why does my hearing aid keep turning off?

A: It may be due to battery drain, poor contact, or internal damage.

Q: Can humidity cause hearing aid problems?

A: Yes — even invisible moisture can interfere with components.

Q: How do I know if it’s a software issue?

A: If problems appear after updates or involve Bluetooth, it may be app-related.

Related Articles

  • Hearing Aid Buzzing or Whistling? Here’s What to Do
  • Bluetooth Hearing Aid Not Pairing? 3 Fixes
  • Hearing Aid Battery Drains Too Fast? Top Tips

Still Cutting Out? Let’s Fix That

Don’t let an unreliable hearing aid disrupt your day. Book a free pickup and diagnosis now — available in 50+ Indian cities.
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Dr Sudheer Pandey

Dr Sudheer Pandey

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