Assuming improper playing technique is not causing it, the most common causes for string buzz are low action, uneven fret heights, a poorly fitted nut slot, loose tuning head parts or a bowed neck. Any of them alone can cause string buzz and often they occur in combination.
Why do my classical guitar strings buzz?
The action of your guitar is too high. In other words, the strings are unnecessarily high above the frets. ... Take or send the guitar to a qualified luthier and have the frets redressed or have them replaced entirely. The tension of your strings is too high or too low for your guitar or playing style.
Why does my string keep buzzing?
There are three common causes of fret buzz: Frets are not level with each other (some are taller, some are shorter) String Action is too low. Neck does not have enough "relief" (neck is too straight, or bowing backwards)
Is string buzzing normal?
Humidity levels where you store your guitar is one of the most common causes of string buzzing. If the humidity is too low or too high, you can crack or warp the neck, which, in turn, causes fret buzz. Depending on the severity, the neck may be damaged and will need to get repaired or replaced.