Clean Your Board to Pass the Online Keyboard Tester

Is your keyboard failing the test? Sticky keys, double-typing (chattering), and unresponsive switches are often caused by years of snack crumbs and dust. Here is the ultimate maintenance guide to get green lights on every key.

What You Need

Step 1: The Shake Down

Crucial: Unplug your keyboard first. Turn it upside down over a trash bin. Tap the back gently. You will be horrified by what falls out. This alone can fix keys that feel "crunchy" when tested.

Step 2: Deep Dusting

Using your air duster, spray at a 45-degree angle. Don't spray liquid propellant onto the board (keeps the can upright). If you are serious about maintenance, invest in an Electric Duster. It pays for itself after 3 cans of air and is safer for electronics.

Step 3: Sticky Key Surgery

If a specific key is failing the Online Keyboard Tester:

1. Remove the keycap (use a puller, not a butter knife!).
2. Dip a cotton swab in isopropyl alcohol.
3. Clean around the switch stem.
4. Press the stem down repeatedly to work the alcohol in (only a tiny amount!).
5. Let it dry completely before plugging in.