Fixing a Greenworks pressure washer can seem like a daunting task, but with a bit of troubleshooting, you can often identify and resolve the issue yourself. I’ve faced similar situations where my Greenworks pressure washer suddenly stopped working or wasn’t delivering the right pressure. Luckily, after digging into the problem, I managed to fix it without needing expensive repairs. Here’s a guide to help you troubleshoot and fix your Greenworks pressure washer step by step.
Common Problems and Solutions for Greenworks Pressure Washers
1. Pressure Washer Won’t Start
If your Greenworks pressure washer isn’t starting, it could be due to a few common issues, particularly with electric models.
Steps to troubleshoot:
- Check the Power Source: Ensure the pressure washer is plugged in properly and that the electrical outlet is working. You might want to try plugging another device into the outlet to test it.
- Reset GFCI Plug: Greenworks pressure washers often have a GFCI (Ground Fault Circuit Interrupter) on the power cord. Press the reset button on the GFCI to make sure it hasn’t tripped.
- Inspect the Power Cord: Look for any damage to the power cord. If the cord is frayed or broken, it could be interrupting the power supply.
- Check the Extension Cord: If you’re using an extension cord, make sure it’s rated for heavy-duty use. Light-duty cords can’t handle the power demand and may prevent the pressure washer from starting.
2. Low or No Water Pressure
If your Greenworks pressure washer turns on but isn’t delivering strong water pressure, you might have a blockage or a leak somewhere.
Steps to troubleshoot:
- Inspect the Water Supply: Ensure that the hose is fully connected and that your water source is providing adequate pressure. You need at least 20 PSI of water pressure for most pressure washers to function properly.
- Check the Water Filter: Greenworks pressure washers usually have a water inlet filter that can get clogged with debris. Disconnect the hose and check for dirt or debris in the filter. Clean it out and reattach.
- Examine the Nozzle: Sometimes the nozzle can get clogged. Remove the nozzle from the wand and clear any blockages. You can use a small pin or paperclip to clean out any debris stuck in the nozzle opening.
- Check the Hose for Kinks: Ensure that the high-pressure hose is not kinked or tangled. A kink in the hose will restrict water flow and reduce pressure.
- Air in the System: Sometimes, air can get trapped in the pump or hose. To release air:
- Turn off the pressure washer.
- Squeeze the trigger on the spray gun to release built-up pressure.
- Run water through the system (without the washer turned on) to eliminate air bubbles, then restart the pressure washer.
3. Pressure Washer Shuts Off Mid-Use
This can be frustrating, but it’s often caused by an automatic safety feature, like the thermal overload switch, tripping to prevent overheating.
Steps to troubleshoot:
- Check for Overheating: If the pressure washer runs for a while and then shuts off, the motor might be overheating. Give the machine time to cool down and try again.
- Proper Ventilation: Make sure the pressure washer has proper ventilation, especially if you’re working in an enclosed area. An overheated motor will shut off to prevent damage.
- Reset the GFCI: If the unit shuts off unexpectedly, press the reset button on the GFCI plug.
- Inspect the Water Source: Low water supply can also cause the machine to shut off. Make sure the hose is delivering sufficient water and that there are no kinks or leaks.
4. Pressure Washer Leaks Water
Leaking water can lead to reduced performance and needs to be fixed right away to avoid further damage.
Steps to troubleshoot:
- Check Hose Connections: Inspect all connections, including where the hose connects to the pressure washer and the spray gun. Make sure all fittings are tight and secure.
- Inspect the O-Rings: The rubber O-rings on the connectors can wear out over time, leading to leaks. Check the O-rings and replace them if they are worn or damaged. You can buy replacement O-rings at most hardware stores.
- Check for Cracked Parts: Inspect the pressure hose, spray gun, and water inlet for cracks. If you find any cracks, the damaged part will need to be replaced.
5. Soap Dispenser Isn’t Working
If your Greenworks pressure washer isn’t dispensing soap, it could be due to an issue with the soap nozzle or the siphon system.
Steps to troubleshoot:
- Use the Correct Nozzle: Ensure you’re using the low-pressure soap nozzle (typically a black nozzle). Soap won’t dispense if you’re using a high-pressure nozzle.
- Check for Clogs: Inspect the soap siphon tube and detergent tank for any blockages. Clean them out if necessary.
- Dilute the Soap: If the soap is too thick, it might not flow through the system properly. Try diluting the soap with water according to the detergent’s instructions.
6. Unit Pulses or Vibrates
If your Greenworks pressure washer pulses or vibrates while running, this could indicate an issue with the water flow or pump.
Steps to troubleshoot:
- Check for Clogs: Ensure there are no clogs in the nozzle or water inlet filter.
- Water Pressure: Verify that the water source is providing a consistent flow of water. Inconsistent water supply can cause the machine to pulse.
- Pump Issues: If none of the above solutions work, the pump might need maintenance or repair. Refer to your manual for guidance on pump care or consider contacting customer support.
Maintenance Tips to Avoid Future Problems
- Clean the Water Filter Regularly: Keeping the inlet water filter clean prevents debris from entering the pressure washer and helps maintain consistent pressure.
- Use the Correct Nozzles: Always make sure you’re using the right nozzle for the job. High-pressure nozzles are for tough cleaning jobs, while the low-pressure nozzle is for applying soap.
- Proper Storage: Store your Greenworks pressure washer in a dry, cool place. After each use, drain all water from the hoses and pump to avoid freezing or corrosion.
- Use the Correct Extension Cord: If you use an extension cord, ensure it’s heavy-duty and the correct gauge for the power demands of the pressure washer. A thin cord can reduce power and cause the machine to shut down.
- Winterize Your Pressure Washer: If you’re storing your pressure washer for winter, make sure to flush the system with antifreeze or pump saver to protect the internal components from freezing.
By following these troubleshooting tips, you should be able to fix most common issues with your Greenworks pressure washer and keep it running smoothly.