Arrived at location on 7/14/21 - Checked out unit and found that the start button was working fine on arrival. Per customer the start button would stick in and not come back out. Tried starting and stopping several times and worked every time will obtain start and stop button and return. Returned to location on 7/23/21 - Returned with parts. Removed old stop and start switch and installed new stop and start switch. Checked operation, ok.