Error Code [Lock] [Lev3]

Lock Level 3 - Displayed when attempting adjustments that are incompatible with the active selected lock level.

? What Causes This

User is attempting to make adjustments that are restricted by Lock Level 3 security setting.

✓ How to Fix It

Check the active lock level setting. Adjustments may be restricted to prevent unauthorized changes. Contact administrator or see Section 10-6 for lock level definitions.

Source: page 60 of the official manual

From the manual

Manual page 60 — Miller error [Lock] [Lev3]

This error code appears in:

Miller Dynasty 280