Possible Issues and How to Repair Your GreenWorks 1600 Pressure Washer

I was wondering if you ever thought about buying a GreenWorks 1600 pressure washer. Where there any problems showing up after the purchase? In that case, you’re in good company. Although GreenWorks is a well-known company, the question remains whether or not it lives up to the high standards it sets for itself. Perhaps you, too, have experienced at least one of the widespread issues that other owners of your model have talked about.

Water leaking from the pump is a typical complaint from GreenWorks 1600 owners.

Issues with the GreenWorks 1600 Pressure Washer

There are, as was mentioned, a couple of issues that could arise. Take a look at the table below for a quick reference while you try to trace back the causes of various problems.

The majority of FIxya forum posters blamed a worn-out seal or O-ring, a faulty pump, an incorrect assembly, etc., for their vehicle’s issues.

Let’s have a look at the table below to learn about the potential difficulties and their root causes:

Problems That May AriseLikely Reasons
Leaks water from the pump.A worn-out seal or O-ring, a damaged pump, or an incorrect assembly
Does not generate enough pressure.Clogged nozzle, an incorrect setting on the pressure regulator, or a faulty pump
The motor stops and starts intermittently.Problem with the pressure thermal relief valve or the unloader valve
The pressure washer won’t start.Problem with the spark plug
Making strange noisesLoose connection or mineral build-up in the pump
The pressure washer is surging.A fuel mixture issue, a spark plug issue, or a clogged air filter

Water is leaking from the pump

If you’re searching for a tough and dependable pressure washer, choose the GreenWorks 1600. Users have complained that the pump on their GreenWorks 1600 psi pressure washer leaks water.

A worn-out seal or O-ring, a broken pump, improper assembly, etc. can all contribute to this problem.

1. Worn-out Seal Or O-ring

You may have observed water leaking from the pump on your GreenWorks 1600 psi pressure washer. Probably an antique seal or O-ring.

You’ll need a Phillips screwdriver, a flathead screwdriver, an adjustable wrench, a 1/4-inch socket, a ratchet, Teflon tape, and a ratchet to substitute the seal or O-ring and stop the leak.

Watch this video for some advice on how to resolve the problem:

The O-ring can be changed with these tools. What happens is:

First, turn off the power to the pressure washer. Use a Phillips screwdriver to then remove the pump cover’s screws. To take out the O-ring from the pump, you’ll need a flathead screwdriver, too.

Phase 2, Discard the previous O-ring or seal. Brush off the pump’s exterior. Replace the old gasket with a new one.

Third, reassemble the pump’s parts.

Changing the O-ring or seal on a GreenWorks 1600 should fix the pump leak.

2. Fragile Pump

The pump is probably leaking because it has been damaged. If your pump breaks, you’ll need to replace it. Please refer to the instructions below if you wish to return.

First, disconnect the pressure washer from the wall outlet.

Second, depressurize the pump by removing the hose from the pump.

Third, unbolt the pump from the pressure washer. Furthermore, the pressure washer’s old pump must be removed before the new one can be installed.

Fourth, reconnect the line to the replacement pump and fill it with water.

Fifth, after making any necessary connections, start the pressure washer. Run a test cycle to ensure that the pressure washer is in working order.

3. Improper Assembly

The improper assembly of your GreenWorks 1600 psi pressure washer may be the cause of its leakage. There is a straightforward answer to this problem, which is good news. Disassemble the pressure washer and reassemble it in accordance with the instructions in the user handbook. Incorrect assembly is usually to blame for leaks in GreenWorks 1600 psi electric pressure washers.

First, Inspect the pump for damage or debris after disassembling the pressure washer per the manual’s directions.

The second step is to clean the pump and its surrounding parts.

Third, reassemble the pressure washer according to the manual’s directions.

Fourth, observe if there is any remaining water dropping from the pressure washer.

With any luck, you may get your pressure washer back to regular operation if you follow these directions to the letter.

Lacks Sufficient Pressure Generation

Some users have complained that the device doesn’t produce sufficient pressure.

This could be because of the pump’s construction or the low quality of the components. Not to mention the faulty pump, blocked nozzle, and misadjusted pressure control.

There are a few options worth exploring if you’re dealing with this problem.

1. Nozzle Gets Clogged

Pressure washers, and especially GreenWorks 1600 models, are prone to this problem since the nozzles can easily clog with dirt and grime.Pull the nozzle from the pressure washer and use a tiny brush to clear out any debris. Get a new nozzle if the old one is broken or worn out. If you still aren’t getting sufficient pressure, contact GreenWorks’s support team for assistance.

2. The pressure regulator was not set right

Some people who have used the machine say that the amount of pressure it puts out is not enough to clean their surfaces well. Several potential explanations exist:

If this is happening, make sure that the pressure regulator is set to the right pressure. You should also look for any clogs in the jet tips and hose. If the problem keeps happening, don’t be afraid to get in touch with GreenWorks’ customer service. On top of that, they put out a notice about it.

They want to remind their customers that the pressure regulator must be set to the right psi for the pressure washer to work right. If this is occurring, make sure the pressure regulator is set to the correct psi.

3. Defective Pump

Replace the pump to troubleshoot it. A replacement pump can be purchased from GreenWorks or a third-party retailer. When you finally get your hands on a replacement pump, simply plug it in and follow the instructions in the user manual.

The motor intermittently stops and starts.

You may have observed that the GreenWorks 1600 psi pressure washer is not operating; it intermittently stops and begins. This is a common problem with this model, and there are various possible causes.

1. Faulty Pressure Thermal Relief Valve Or Unloader Valve

One of the most typical causes of this problem is that the unloader valve on the pressure washer is stuck in the “On” position. This causes the motor to overheat and stop operating.

To correct this, turn the unloader valve to “off” and restart the pressure washer.

2. An issue with the unloader valve

Another possibility is that the pressure washer’s heat relief valve is not working properly. This valve is intended to relieve pressure while also preventing the pump from overheating.

If the valve is stuck in the “Open” position, it will not effectively release pressure and will cause the motor to overheat. Replace the thermal relief valve with a new one to correct this.

The Pressure Washer Isn’t Working

A damaged spark plug is the most likely cause of your GreenWorks 1600 psi pressure washer motor not starting. This can be caused by a number of factors, including a buildup of dirt and debris around the plug or an issue with the machine’s ignition mechanism.

Fortunately, troubleshooting a spark plug problem is straightforward. Before you start the engine, make sure the spark plug is clean. If it’s filthy, wash it or replace it. Next, inspect the machine’s ignition system to ensure it is operational.

Making Odd Noises

If your GreenWorks 1600 pressure washer isn’t working properly, or if it makes unusual noises upon beginning, it could be due to a loose connection or mineral build-up in the pump.

To begin, inspect the power cord and other connections to the pump for any loose wires. If you find any, adjust them using a wrench. If the problem persists, a new pump may be needed. To begin, clean the pump of mineral buildup by removing dirt from the intake screen. The pump should then be flushed with clean water using a garden hose. If the problem persists, the pump may need to be replaced.

The Pressure Washer is on the rise.

GreenWorks 1600 pressure washer surging issues are possible. Possible causes include a clogged air filter, an incorrect fuel mixture, or a defective spark plug. If you’re having this difficulty, it’s essential to look into each of these potential causes to see if you can narrow down the root of the problem.

1. Fuel Mixture Problems

The fuel in the pressure washer’s tank might become stale and begin to break down over time. If this occurs, the engine may buck and the pressure washer may surge.

If you are experiencing fuel mixture problems, the best course of action is to empty the tank and refill it with fresh fuel. You might also need to replace the fuel filter. If the problem persists, you may need to take the pressure washer to a repair to determine what is wrong.

2. Spark Plug Problems

Because the spark plugs are dusty or broken, the engines may not start. To resolve the issue, clean or replace the spark plugs.

3. Obstructed Air Filter

If you use your pressure washer in dusty or unclean conditions, this can happen. To clean your air filter, take it out of the pressure washer and run water over it. If it becomes clogged, you may need to replace it.

According to GreenWorks, the problem can be resolved by removing the air filter and washing it with soapy water.


What’s the deal with my GreenWorks pressure washer pulsing?

There are a few possible causes for your GreenWorks pressure washer to pulse. It could be due to an issue with the pump, pressure relief valve, or unloader valve. Another possibility is a faulty hose or wand. If you’re not sure what’s causing the pulsing, we recommend having your pressure washer serviced by a trained professional.

Why is my pressure washer cycling back and forth?

There could be several reasons why your GreenWorks pressure washer is revving up and down. It is possible that the pump is not properly primed, that the engine is low on oil, or that the pressure washer is overloaded. If you are experiencing this problem, you should review the owner’s manual for your specific model. However, if you are unable to discover a solution in the handbook, you may need to contact customer care or a skilled expert.


One of the best tools for thorough cleaning is the GreenWorks 1600 pressure washer. When you buy it, you can feel like you’ve made a big investment. Some consistent issues have been noted by those who have purchased this pressure washer.

Not to worry! We did some research on this matter and found numerous reports of issues with the GreenWorks 1600 pressure washer. If you’re in the market for a trustworthy and reasonably priced pressure washer, this is a fantastic choice. With any luck, this article has shed light on some of the most typical issues with the GreenWorks 1600 pressure washer and dissuaded you from making a purchase.