There are a number of reasons you have to reset SMC on MacBook Air. Usually, people ask “the power problem in Macbook“, “overheating problem in Macbook” and other basic problems which could be solved by resetting SMC. Recently, my MacBook fan is producing noise and has an overheating problem even there is only Chrome browser was opened. Resetting the SMC is only the solution, to solve the overheating problem in MacBook. Learn how to reset SMC on MacBook Air.

How to Reset SMC on MacBook Air:

Before, resetting your SMC in MacBook make sure to restart it properly. If any of the applications is not responding exit the app by pressing “Command + Option + Escape to force quit“.

  1. Shut down your Mac by choosing the Apple Menu from the upper-left menu bar and then selecting Shut Down.

  2. Plugin the MagSafe power adapter to a power source, connect it, if already not connected.

  3. Press (left-side) Shift + Control + Option keys and the power button at the same time for 20 seconds.

  4. Release all keys and then press the power button at the same time.

  5. You might see the status change on your MagSafe change from orange to green. This is a maybe, as some people have experienced no change in status.

After you have done so, the computer will get switched on. There is no way to check if an SMC reset has taken place. Doing so has resolved my issue of overheating. You can even learn how to erase and re-install osx Yosemite.

Video: How to Reset SMC on MacBook:

What is SMC? and what is the working of SMC?
The SMC is the system management controller (SMC) and it controls the lower-level function in your MacBook. A number or utilities controlled by your MacBook to includes Keyboard, Cooling Fans, LED light. The main thing to remember How your mac manages power.

Types of Problem could be solved by Resetting SMC on MacBook Pro:

  1. Your computer’s fans run at high speed, even though it isn’t under heavy usage and is properly ventilated.
  2. The keyboard backlight behaves incorrectly.
  3. The status indicator light, if present, behaves incorrectly.
  4. Battery indicator lights, if present, behave incorrectly on Mac notebooks with a non-removeable battery.
  5. The display backlight doesn’t respond correctly to ambient light changes.
  6. Your Mac doesn’t respond when you press the power button.
  7. Maybe the behavior to respond when you close or open the lid.
  8. It may shutdown unexpectedly and you are unable to turn it back on.
  9. The battery doesn’t charge properly.
  10. Your macbook pro doesn’t charge through its built in USB-C port.
  11. Externally connected devices does not recognized by your macbook/macbook pro, connected to its built-in USB-C port.
  12. The Magsafe power adapter LED, if present, doesn’t indicate the correct charging activity.
  13. Your Mac performs unusually slowly, even thought it’s CPU isn’t under an abnormally heavy load.
  14. A Mac that supports target display mode doesn’t switch into or out of target display mode as expected, or it switches into or out of target display mode at unexpected times.
  15. The illumination around the I/O ports on a Mac book pro(late 2013) doesn’t turn on when you move the computer.