Why does the MacBook Air beeps regularly

In case of memory or firmware-related issues, your Mac may beep once or more times during the startup process or it may stuck on black screen. Also called 3 beeps of death, this unusual beeping signals that your Mac might have startup issues, such as not turning on and loading to a black screen.

However, you can try the below DIY methods to fix the issue:

1. Reset the SMC

2. Reset the NVRAM

3. Replace the original RAM module

4. Run Apple Diagnostics

Hope it helps!

Hi jimfromkildeer,

Thanks for posting here in Apple Support Communities. Does this happen when the MacBook is plugged in? Is it happening during start up? If so, check this out as it may answer the questions you have: If your Mac beeps during startup

If your Mac beeps during startup

Certain conditions related to memory or firmware might cause your Mac to beep once or more during startup.

On some Mac models, you might hear one of these sequences of beeps at the beginning of the startup process, while the screen is still blank. These are not the same as the startup sound (chime) that a Mac can play when starting up normally. 

One beep every 5 seconds

Your Mac isn't detecting any memory (RAM). If you recently added or replaced memory, make sure that it's properly installed.

Three beeps, then a 5-second pause, repeating

The memory in your Mac didn't pass an integrity check. If you added or replaced memory, make sure that it's properly installed.

Three long beeps, three short, then three long

To resolve a firmware issue, your Mac is restoring its firmware. You might see a progress bar, after which your Mac should start up normally.

Kind regards.