Summary: What solves the problem?
The E3 error indicates a blade motor fault, usually caused by an obstruction or overly tall grass. Follow these steps to remove the blockage and restore normal operation.
The mower is on uneven ground, causing the universal wheel to lift.
There are obstacles that are tilting the mower.
Ensure the terrain is even and stable.
Level out any bumps or dips that may be causing the mower to lift.