The universal wheel( front wheel) gets stuck
1. Please press and hold the OK button to power off the mower and then put the mower upside down, and pull the rod with a little bit of strength until the rubber cover shows.
2. Slide up the rubber cover and lubricate the circled metal part.
Please observe whether the lifting protection will trigger less after following the troubleshooting guide above. If there is no significant improvement, please contact your dealer for after-sales service.