Thank you for contacting the Answer Army.
Sorry you are having issues with your Weed Eater One mower.
On a few of these mowers, the axle will allow the wheels to go "over center" and temporarily stick. There has been a axle update to keep these wheels from going "over center".
Please contact an authorized Weed Eater dealer in your area for evaluation and repair.
Unfortunately, I am not the original as I bought it from Craigslist. I called one of the authorized dealer in the area and explained the problem and your suggestion about the axle update but he wasn't sure what would cause it. I was hoping, I could do it myself if you told me what the part number was and I could order it online.
Thank you for contacting the Answer Army.
Sorry you are having issues with your Weed Eater One mower.
On a few of these mowers, the axle will allow the wheels to go "over center" and temporarily stick. There has been a axle update to keep these wheels from going "over center".
Please contact an authorized Weed Eater dealer in your area for evaluation and repair.