The proprietary Active Noise Cancellation (ANC) system is one of the key features of AirPods Pro and AirPods Max. It makes using the headphones comfortable on the subway, on a plane, in the office, or outdoors, blocking out external noise and delivering clear, rich sound. However, users often encounter an annoying issue: noise reduction stops working, works weaker or disappears periodically.
Why does this happen? Is it possible to restore noise cancellation without replacing the earbuds? And when should you seek service? In this article, we'll take a detailed look at all the reasons why ANC on AirPods fails, what you can do yourself, and why it's best to contact a service center. professional service RUDSERVICE.
What is noise cancellation in AirPods and how does it work?
To understand why noise cancellation might stop working, it's important to understand how it works.
The ANC system uses:
-
external microphones, which capture environmental noise;
-
internal microphones, which control the sound inside the ear canal;
-
sound processing chip, which generates “anti-noise” – a sound wave that cancels out external noise.
If even one of these elements is not working properly, the noise reduction will deteriorate or stop functioning completely.
The main reasons why noise cancellation on AirPods doesn't work
The problem could be either software or hardware related. Below are the most common causes we encounter. RUDSERVICE.
1. Clogged microphones
This is the most common cause. Over time, noise-cancelling microphones become clogged:
-
earwax,
-
dust,
-
moisture,
-
cosmetics,
-
small particles from clothing.
Even a thin layer of dirt significantly reduces the sensitivity of microphones, and noise reduction becomes much less effective.
2. Moisture ingress
AirPods aren't waterproof. Even the Pro models, with their IPX4 rating, are only protected against light splashes, but:
-
rain,
-
sweat after training,
-
fumes in the bathroom,
-
condensation in winter
may damage microchips or microphones.
Moisture destroys the contacts and leads to complete loss of ANC function.
3. Mechanical damage
Dropping, hitting, squeezing in a pocket, or accidentally stepping on the earphone may damage:
-
microphones,
-
trains,
-
dynamic module,
-
CPU.
When mechanically damaged, the noise suppressor often stops working abruptly and completely.
4. Wear of membranes and ear pads
AirPods Pro use special ear tips that create a vacuum. If an ear tip is torn, stretched, loose, or replaced with a cheap replacement, the noise-canceling effect is lost.
The situation is similar if the dynamic block is damaged.
5. Problem with the software
Sometimes noise reduction disappears or does not work correctly due to:
-
firmware failure,
-
incorrect calibration,
-
settings errors,
-
unsuccessful iOS update or headphone firmware update.
In such cases, the problem is resolved most quickly, but it is important to carry out proper diagnostics.
6. Manufacturing defect (a very common problem with AirPods Pro 1)
Apple has officially acknowledged that the first-generation AirPods Pro's noise cancellation can:
-
wheeze,
-
crackle,
-
disappear,
-
amplify noise instead of suppressing it.
Many of these headphones are no longer supported by the replacement program, but they can be repaired at a service center.
How to tell if noise canceling is really not working
Please pay attention to the following signs:
-
You turn on ANC mode, but the ambient sound hardly changes;
-
Noise reduction works only in one earphone;
-
when ANC is turned on, an echo, hissing, and hum appear;
-
the low-frequency “vacuum effect” disappears;
-
Transparency mode sounds abnormal or too quiet;
-
After the update the sound became worse.
If you notice at least one of these symptoms, there is already a problem and it requires diagnosis.
What can you try to do yourself?
Some problems can be solved without repairs. Here's what you can try:
✔ 1. Clean your headphones
Use:
-
a soft dry cloth,
-
cotton swab,
-
soft brush,
-
toothpick (carefully).
Never use water, wet wipes, alcohol or compressors, as this will damage the microphones.
✔ Reset your AirPods Max to factory settings.
-
Place the headphones in the case.
-
Press and hold the button for 15 seconds.
-
Please reconnect.
This method often solves software problems.
✔ 3. Change the ear pads
Sometimes it is enough to simply replace the ear pads with original ones.
✔ 4. Check on another device
Connect to another iPhone, iPad, or Mac to rule out smartphone issues.
If these steps don't help, the problem is hardware and repairs are necessary.
Professional AirPods noise-canceling repair at RUDSERVICE
If noise cancellation on your AirPods has stopped working, your best option is to take your AirPods to a specialized service center that specializes in component-level repairs.
RUDSERVICE — one of the few services in Kyiv that professionally repairs AirPods.
What we do:
✔ Cleaning and restoration of microphones
Removing dirt, restoring noise reduction.
✔ Repair after moisture
We eliminate corrosion and replace damaged elements.
✔ Replacement of microphones and ANC modules
We even help in situations where other services only offer headphone replacement.
✔ Re-soldering of cables
We are restoring the contact group.
✔ Speaker and membrane repair
We restore natural sound and noise reduction effects.
✔ Accurate diagnostics
We determine the exact cause in 15–20 minutes.
Why RUDSERVICE?
-
Narrow specialization in Apple technology
-
original parts and professional equipment;
-
honest diagnostics - if repairs don't make sense, let's face it;
-
convenient location in Poznyaky;
-
possibility of repair on the day of request;
-
guarantee for all work.
We repair AirPods, AirPods Pro, AirPods Max, including complex cases with full restoration of the ANC system.
When repair is not possible
There are situations when:
-
the audio processor is damaged;
-
the earphone is completely filled;
-
the motherboard is destroyed.
In such cases, repairs are technically complex or impractical. Even then, we offer solutions, from restoration to selecting working components.
Conclusion
A faulty noise-canceling system on AirPods isn't a death sentence. In most cases, the ANC function can be successfully restored: simply identify the cause and have it professionally repaired.
If your AirPods have stopped canceling noise, there is hissing or crackling noise, or ANC is only working in one earbud, please contact us. RUDSERVICE in PoznyakiWe'll quickly find the cause and restore your headphones to perfect sound.
