What causes the motor to buzz but fail to run on my GreenWorks Pro GPW 2200?
- OoolsonAug 14, 2025
If the motor of your GreenWorks Pro Pressure Washer buzzes but fails to run, the supply voltage might be below the minimum requirement; verify that only the pressure washer is running on this circuit. The system may also have residual pressure; turn the unit “OFF”, squeeze the trigger on the spray wand to release the pressure, then turn the unit "ON". Voltage loss due to an extension cord could also be the issue; unplug any extension cords and plug the unit directly into the outlet. Another possible cause is residual friction among components; disconnect the water supply and power ON for 2 to 3 seconds, repeat couple times or until the motor starts.