I have an older MacBook Air and absolutely love it. It has performed flawlessly and is well used by me and my kids. However, I have had a lingering issue that has appeared every few months or so that has often left me scratching my head. Sometimes, when I plug in my 45 watt power supply, the little green light on the MagSafe doesn’t come on and the MacBook Air doesn’t charge. And, it seems that this is a problem that others have encountered. So I wanted to share a couple of solutions that may help resolve this issue, one of which worked for me – and you will be absolutely SHOCKED at what the solution was!
Before I give away the trick that worked for me, I thought that I would share another fix that you should at least attempt prior to doing the one that work. That way, you can still say that you “tried all of the recommended fixes.”
Reset your System Management Controller (SMC)
Sometimes your MacBook may show odd issues like a racing fan despite no heavy usage or the battery appearing to not charge properly. If this happens, you might want to reset your System Management Controller (SMC) which is a very easy process. Here are the exact instructions from the Apple Support Knowledgebase:
- Shut down the computer.
- Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
- On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
- Release all the keys and the power button at the same time.
- Press the power button to turn on the computer.
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Unfortunately, this fix did not work for me. My charger was not showing as green or amber or any color for that matter. And my MacBook Air was not charging.
The Fix that “Warms” your Heart
So despite trying to fix the charging (or lack thereof) issue using a documented Apple process, I turned to the Apple Support forums and found a solution that, when you read it, you are not going to believe.
It turns out that the 45W charger needs some tender loving care when it is cold. That’s right, if the square part (shown below) is cold, for one reason or another, it won’t work.
I’m not sure if newer power supplies have corrected this issue, but with my older MacBook Air with the original power supply, the following “heating” trick worked. The fix is easy.
- Plug in your charger to the wall/surge protector and into your MacBook Air.
- Take the square portion (that normally heats up when it is charging) and warm it up. I simply sat on it on the bed for a while. Some people have put it under their armpit.
- Sit and watch for the light on the MagSafe connector to magically turn on after a few minutes.
- Rejoice that there is, indeed, a technology god!
I was completely skeptical about this fix but I figured that I would test it out. I simply sat on the “brick” like a hen for about 5 minutes or so while I continued to search for other solutions. Then, to my amazement, the MagSafe charging light turned on and my MacBook Air was actually charging!
So, if you encounter this issue where your MagSafe 45W MacBook Air power supply is not charging your MacBook Air, it simply could mean that the brick part is feeling a bit cold. Warm it up for a few minutes and see if it becomes happy again.
Leave a comment to let me know if this worked for you!
HTD says: Sometimes the most non-technical of solutions can fix your IT problems!