How do I fix a speaker that is not working?

1. Check that the speaker is connected to the correct power source, is powered on, and that all necessary wires are securely connected.
2. Check the computer sound settings to make sure that both your speakers' volume and the master volume are turned up.
3. Check your audio device's drivers and confirm that they are up to date.
4. Attempt to test the speaker with another device.
5. Check for any debris in the headphone jack or port.