Diagnose
What's going on with your guitar?
Pick the symptom that sounds most like yours. We'll list the likely causes, most common first, and say which ones are safe to fix at home.
Likely causes for
The truss rod won't turn
Stop, don't force it Luthier
A stuck rod can snap or strip if forced. A luthier can free it safely.
Wrong tool size Take care
A key that doesn't fit snugly slips and rounds off the nut. Find the exact size before trying again, gently.
Not sure? Start with the first cause. Each guide checks it before you change anything.