And if possible, it should be lower if you release the trigger. Like mentioned earlier, the spike should not exceed 10%. Try to find the setting where the pressure is at its highest and the spike as low as possible. If the nuts are too low, you can move them higher. Keep the machine running and continue adjusting the knob. Step 5: Adjust the knob until you find the spot where pressure is maximal and the spike is minimal.The pressure spike shouldn’t exceed 3240 PSI when you release the trigger. If it is higher, it can damage the pump over time.įor example, if you set the pressure to 3000 PSI. It would be best not to have more than a 10 % spike when you release the trigger. This is the spot where you need to stop adjusting the knob. The goal is to find the setting where the spike is somewhere between 5% to 10%. You will see that the pressure spikes up. Ensure that all the air from the pump is released and only water comes out of the nozzle. Try to spray at the same distance to the same spot to compare the different settings easier. If you do not have a pressure gauge, you have to do this by sight. You can use it to see the output pressure when you press the trigger. If you have a pressure gauge, attach it between the pump and pressure hose. Put the spring washer and black adjusting knob on. Lock the two nuts that you see on the rod together with a wrench. Step 4: Lock the nuts, clip the pressure gauge and start tightening the spring.You will see a threaded piston and rod with two locking nuts if you have successfully removed them. Then remove the thin washer and the spring. Remove the nut from the top of the unloader valve and take off the plastic pressure adjusting knob. Step 3: Remove the top and take off the nob.Step 2: Unplug the pressure washerįor safety reasons, remove the power cord from the wall socket.Ensure that you set it to the correct level. If this is the case, the unloader valve is working fine. You should be able to lower it and set it higher. When you move the spring, you should see the output pressure of the pressure washer change. That way, you can easily set it back after changing it.
The easiest way to check the unloader valve is by adjusting the spring of the unloader valve. Here is a step-by-step guide to follow if your Greenworks pressure washer keeps shutting off: Readjust the valve or replace the damaged parts of the valve or the whole valve if it’s fully damaged. To solve this problem, carefully inspect the unloader valve’s springs and other components. The motor will be under a lot of strain, needs to supply a lot of power driving the pump, and ultimately shuts off. When the unloader valve fails to do this, a lot of pressure builds up in the electric pressure washer.
The unloader valve diverts the water flow towards the inlet. A faulty unloader valve doesn’t divert the water to the inlet, which increases pressure inside the pump, and the washer shuts off. Why Does My Greenworks Pressure Washer Keep Shutting Off?Ī Greenworks pressure washer keeps shutting off due to a problem with the unloader valve. Use the following table to diagnose and troubleshoot a GreenWorks pressure washer: Step 2: Check the fuse and replace itĭiagnose and troubleshoot a Greenworks Pressure Washer.
#GREENWORKS PRO 3000 PSI HOW TO#
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