MacBook Air 13" loud fan
Have got a problem with my MacBook Air fan, it's been making a loud noise for the past 3 days. I bought it in 2018 and its the MacBook Air 13" 2017 version (Mac OS Catalina). Every help would be appreciated.
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The fans may seem louder because they are running harder or there could be a problem like dust that's making them louder. Reboot the computer and immediately start Activity Monitor. Switch to the CPU tab and click on the %CPU so that the services are listed in order from high to low. If you have a runaway process it would heat up the CPU and make the fans run fast - which would sound loud. Do you see any process or processes running at say 30% or higher constantly?
Look at the bottom left of the Activity Monitor window. See the box containing the System %, User %, and Idle%? I'd expect idle to be between 70% - 85% That's another way of gauge whether the computer is actually running hard. If you think you are looking at normal usage then a trip to your local Apple repair center is in order.
