If the bubble in the level is not in the center of the instrument but instead leans to one side, it is typically due to an uneven base or an imbalance of liquid in the bubble vial. To resolve this, adjust the height of the base using the adjustment screw or gently tap the edge of the level to redistribute the bubble evenly.

If the level gauge indicates off-center readings when the instrument is actually level or provides inaccurate measurements when assessing the level of a surface due to environmental factors such as wind, vibrations, or temperature, it may be necessary to wait for a stable environment before taking measurements. Alternatively, consider using a different type of level, such as an inertial level, which can automatically account for environmental factors and recalibrate the readings.

Sometimes, the level may read correctly, but the displayed numbers are unstable. This instability could be due to a damaged display or prolonged usage. To address this issue, you can attempt to reinstall the display or replace the level with a new one.

If the level experiences sudden and significant changes in readings during use, such as an unexpected shift in measurements, it may be the result of accidental impact or damage. In such cases, the instrument may require repair or replacement.