A key that sticks, double-types or doesn't respond can make your MacBook frustrating to use. The good news is that many sticky keys are caused by crumbs or dust and can be fixed at home in a few minutes. Here's how to fix sticky MacBook keys safely, how to rule out a software setting, and when it's time for a repair.
First, rule out software settings
Some accessibility features change how keys behave and can feel like a hardware fault.
- Open System Settings (or System Preferences on older macOS) and go to Accessibility > Keyboard.
- Check that Sticky Keys and Slow Keys are turned off unless you use them on purpose.
- In Keyboard settings, check Key repeat rate and Delay until repeat if keys seem to repeat too quickly.
You can also test the keyboard by typing in a plain app like Notes. If the problem happens everywhere and only on certain keys, it's likely physical.
Clean the keyboard with compressed air
Apple recommends a specific compressed-air method, especially for MacBook models with the thinner butterfly keyboard. You'll need a can of compressed air with a straw attachment.
- Shut down the MacBook and unplug it.
- Hold the Mac at about a 75-degree angle, so it's tilted up but not fully vertical.
- Spray the keyboard, or just the affected keys, moving the straw from left to right. Keep the straw about 1 to 2 cm from the keys and don't tip the can upside down.
- Rotate the Mac onto its right side and spray again from left to right.
- Rotate it onto its left side and repeat.
Use short bursts. Holding the trigger for a long time can make the air very cold and push moisture into the keyboard.
Wipe the keycaps clean
Grime on top of the keys can also make them feel sticky.
- Lightly dampen a lint-free microfibre cloth with water. Apple also says a 70% isopropyl alcohol wipe can be used gently on hard exterior surfaces.
- Wipe each key and the area around it with gentle pressure.
- Make sure no liquid drips between the keys, and let everything dry before turning the Mac back on.
Avoid pulling off keycaps. On many MacBooks, especially butterfly keyboards, the clips are tiny and fragile, and a broken clip turns a cleaning job into a repair.
If something was spilled on the keyboard
Sticky keys after a drink spill are a different problem. Sugar, milk and coffee leave residue under the keys and can corrode the circuits below, even when the Mac still works. Don't keep typing on it and hoping it improves. Shut it down, unplug it, and follow our guide on what to do after a MacBook liquid spill. Liquid damage is best assessed early, before corrosion spreads.
Signs you need a keyboard repair
- A key still sticks, repeats or doesn't register after cleaning.
- Several keys or a whole row stopped working at once.
- A keycap is loose, broken or won't stay on.
- The keyboard behaves differently when you press on the case near it.
If you own a MacBook from roughly 2015 to 2019, recurring sticky or repeating keys may be the known butterfly design issue. Read more about MacBook butterfly keyboard problems.
Need a MacBook keyboard repair in Ottawa?
When cleaning isn't enough, Fix Revolution can diagnose the keyboard and replace it if needed. We pick up your MacBook anywhere in Ottawa and Gatineau and bring it back when the repair is done, and nothing is sent out. Most MacBook repairs take 1 to 2 business days, depending on parts. Get a free quote or call 613-265-4349.
Quick answers
Can I remove MacBook keycaps to clean underneath?
It's not recommended. The clips on many MacBook keyboards, especially butterfly models, are fragile and break easily.
Why are my keys sticky after a spill?
Drinks leave residue and can start corrosion under the keys. Shut the Mac down and have it checked rather than continuing to use it.
Will compressed air damage my MacBook keyboard?
Not when used as Apple recommends: short bursts, can upright, straw held slightly away from the keys.