Product Description: Troubleshooting Issue : Mower not starting. Causes : Extension cord not connected to Reconnect the cord and use the cord the mower plug. retainer to keep the cord close to the motor/blade control , Tripped circuit breaker on Push to reset . Solution : Extension cord not connected Connect the extension cord to a live to power source. 120V AC, 60 HZ AC receptacle . Mower motor control switch defective. Have motor control switch replaced by an authorized service center.