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FANUC robot calibration lost — error codes to check

Lost calibration usually follows a dead measurement battery, a resolver/encoder fault or a revolution-counter reset. These codes identify which axis data was lost and why.

40 FANUC fault codes match this symptom — start with the most frequent ones below.

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →