Greenworks Pressure Washer Troubleshooting: Fix Now

Imagine a pristine, sunny day with outdoor surfaces in desperate need of a facelift—your patio, deck, or car covered in dirt, grime, and stains. In times like these, your Greenworks pressure washer becomes the unsung hero, promising to restore the shine and cleanliness you desire. However, there are moments when even the most reliable cleaning companion encounters hiccups along the way.

Once you find that your Greenworks pressure washer requires troubleshooting, the best advice is to stop listening to every other person and follow proper guidelines. The initial step is to find out what the actual problem is. Is your Greenworks pressure washer pulsing? Or is your pump noisy? Do you find your pump oil leaking or the motor doesn’t start at all? There may be a number of problems, each unique in its nature. You can use our guide to find out the possible causes for each and the proposed ultimate solution.

Before you embark on the journey to Greenworks pressure washer troubleshooting, remember that Greenworks is one of the best electric pressure washer brands and has lived up to its promises for decades. However, like any other electrical equipment, Greenworks pressure washers do require regular maintenance and troubleshooting.

So, before you let a minor hiccup turn into a major headache, let’s embark on this journey together and ensure that your trusty Greenworks pressure washer continues to be the reliable cleaning sidekick you can always count on!

Greenworks pressure washer Troubleshooting – Common Problems, Causes, and Solutions

In the world of pressure washers, even the most dependable models like Greenworks can encounter occasional hiccups that disrupt your cleaning routine. These issues often manifest as low pressure, leaks, starting problems, or unexpected shutdowns. Fortunately, troubleshooting Greenworks pressure washer involves understanding the probable causes behind these glitches and swiftly resolving them. Let’s find out the type of problems you encounter when your Greenworks pressure washer not working.

1.      Greenworks pressure washer motor won’t start

One of the most common problems when troubleshooting Greenworks pressure washer is that it simply refuses to turn on. Now there may be several causes leading to Greenworks pressure washer not turning on. You cannot jump to a single conclusion right away and have to check the cause in depth. Below are a few common reasons why your Greenworks pressure washer won’t turn on

Kept idol for a long timeKeep the cord plugged and try again in 30 minutes
Inadequate power supplyPlug the cord into a different socket.
Cord loosely plugged or unpluggedPlug in the power cord again.
Tripped Circuit breakerSqueeze the trigger gun repeatedly.
Tripped/heated internal or external componentsLet the components cool down and try again.
Greenworks pressure washer won’t start

2.      Pressure washer pulsing – The output pressure varies between high and low

When troubleshooting a Greenworks pressure washer, a common issue is pulsating pressure output, where the pressure alternates between high and low. To address this problem effectively, it’s essential to identify the underlying causes and their corresponding solutions:

Air in the hose or pumpPurge air from the system by running water
Clogged nozzle or filterClean or replace the nozzle/filter
Water inlet issuesEnsure a consistent water supply and proper hose connections
Low water pressure from the sourceCheck and improve your water source’s pressure
Worn or damaged seals, valves, or pistonsInspect and replace any faulty components
Pressure adjustment settingAdjust the pressure regulator as needed
Pump malfunctionContact Greenworks customer support for further assistance
Unstable power sourceUse a stable power source or extension cord
Greenworks pressure washer pulsing

3.      The garden hose leaks water

If you’re experiencing issues with your garden hose leaking water, it can be a frustrating problem to deal with. Leaks not only waste water but can also reduce the hose’s effectiveness. To tackle this issue, it’s crucial to identify the root causes and apply appropriate solutions.

Hose damage or puncturesPatch or replace damaged sections of the hose
Loose or damaged hose connectionsTighten or replace hose connectors and fittings
Hose kinks or twistsStraighten out kinks and avoid twisting the hose
Aging or deteriorating hoseReplace the hose with a new one if it’s worn out
Improper storage or exposureStore the hose properly and shield it from UV rays
Extreme cold or heat exposureProtect the hose from extreme temperatures
Excessive water pressureUse a pressure regulator or reduce the water pressure
Hose material or quality issuesInvest in a high-quality hose that’s less prone to leaks
Garden hose leaks

4.      Noisy Pump

Dealing with a noisy pump can be both annoying and concerning. When your Greenworks pressure washer pump is making unusual noises, it’s essential to diagnose the issue to prevent further damage and ensure smooth operation. Here are some common causes and their corresponding solutions for a noisy pump:

Air trapped in the pumpBleed the air from the pump system
Loose or damaged pump componentsTighten or replace loose or damaged parts
Cavitation due to low water flowIncrease water flow to the pump or adjust settings
Worn-out bearings or impellersReplace worn bearings or impellers for smoother operation
Greenworks pressure washer pump noisy

5.      Water leaking from the pump

Discovering water leakage from your pump can be concerning and potentially damaging. It’s crucial to pinpoint the cause and take prompt action to prevent further issues. Here are two common causes and their corresponding solutions for water leakage from a pump:

Loose or damaged pump fittings or sealsTighten fittings or replace damaged seals and parts
Cracked or damaged pump housingRepair or replace the pump housing as needed
water leaking from pump

7.      The unit does not reach high-pressure

When your pressure unit fails to achieve the desired high-pressure output, it can hinder its effectiveness for tasks like cleaning or spraying. To diagnose and resolve this issue, it’s crucial to consider several potential causes and their corresponding solutions:

Clogged or blocked inlet filterClean or replace the inlet filter to improve water flow
Worn or damaged pump seals or pistonsInspect and replace worn or damaged seals or pistons
Insufficient power supply or extension cordEnsure the unit is connected to an adequate power source and avoid long extension cords
A leaky hose or fittingsCheck for leaks and tighten fittings or replace hoses if necessary
Unit does not reach high pressure

8.      No output pressure when the trigger is engaged

Experiencing a complete absence of output pressure from your pressure washer can be frustrating. In many cases, the unloader valve can be the culprit behind this issue. When the Greenworks pressure washer unloader valve malfunctions or gets stuck, it prevents the build-up of pressure within the system, resulting in no pressure at the nozzle. To resolve this problem, inspect and potentially replace the greenworks unloader valve as a possible solution.

Malfunctioning Unloader ValveInspect and replace the unloader valve to restore pressure output
Pressure washer no output

9.      Leaking oil

The presence of oil leaks in your equipment can signify a potential problem, leading to reduced performance and possible damage. One common cause of oil leaks is a damaged oil seal. When the oil seal is compromised, it allows oil to escape, creating a mess and potentially causing damage to other components. To address this issue, thoroughly inspect the equipment for a damaged oil seal and replace it as needed.

Damaged Oil SealInspect the oil seal, and if damaged, replace it promptly
Pressure washer pump oil leaking

10.  Leaks in Spray Wands, Extensions, or Nozzle

Experiencing leaks in your spray wands, extensions, or nozzle can be a frustrating issue during tasks like pressure washing. One common cause of such leaks is a damaged or worn-out O-ring. When the O-ring is compromised, it can’t create a proper seal, leading to water leakage. To resolve this problem, inspect the O-ring, and if you find it damaged or worn, replace it with a new one for a secure and leak-free connection.

Damaged or Worn O-ringCarefully examine the O-ring for damage or wear and replace it.
spray wands, extensions and nozzle leaking

11.  No water output

When your equipment fails to produce any water output, it can be a frustrating issue that hinders your tasks. Two common causes for this problem are kinks in the hose or faucet and a lack of water supply. Kinks in the hose or faucet can restrict water flow, while a lack of water supply means there’s simply no water available to pump. To address these issues, check for kinks in the hose, straighten them out, and ensure the faucet is fully open. If there’s no water supply, investigate and remedy the source of the supply issue to restore water output and enable your equipment to function correctly.

Kinks in Hose or FaucetInspect the hose for kinks and straighten them out.
No Water SupplyInvestigate and address the source of the water supply.
No water output

12.  The motor buzzes but fails to run

Encountering a situation where the motor of your equipment emits a buzzing sound but fails to start running can be perplexing. This issue suggests an electrical problem preventing the motor from operating correctly. To troubleshoot and resolve this problem, consider several potential causes and their respective solutions:

Faulty or tripped circuit breakerCheck the circuit breaker and reset it if necessary.
Overheating or damaged motorLet the motor cool down and inspect for damage. If needed, replace the motor.
Loose or damaged electrical connectionsInspect all electrical connections, and tighten or replace any loose or damaged connections to ensure a proper electrical flow.
Motor buzzes but fails to run

13.  Water pressure is not uniform

: Erratic water pressure can be frustrating and reduce the effectiveness of your equipment. One common cause for this issue is a malfunctioning or improperly adjusted unloader valve. If the unloader valve is not functioning correctly or set at the wrong pressure, it can result in fluctuating water pressure. To resolve this problem, inspect the Greenworks pressure washer unloader valve, ensure it is functioning properly, and adjust it to the appropriate pressure setting as per your equipment’s specifications to maintain consistent water pressure during operation.

Malfunctioning Unloader ValveInspect the unloader valve, ensuring it functions correctly and is adjusted to the appropriate pressure setting to maintain consistent water pressure during operation.
Erratic water pressure


1. Where is the fuse on a Greenworks pressure washer?

Depending on the model, the fuse position on a Greenworks pressure washer may change, although it is usually located close to the power cable or motor. See your user handbook for more instructions.

2. Why is my Greenworks pressure washer not working?

There could be other reasons why your Greenworks pressure washer isn’t operating, such as a broken part, a clogged filter or nozzle, or a problem with the power supply. The precise problem should be found and addressed using troubleshooting techniques.

3. Where is the unloader valve on a Greenworks pressure washer?

A Greenworks pressure washer’s unloader valve is often found on or close to the pump. Refer to your user handbook for detailed directions on where to find and how to utilize it.

4. How do you troubleshoot a pressure washer?

In order to troubleshoot a pressure washer, start by making sure the water flow is appropriate, cleaning clogged filters or nozzles, and verifying the power supply. For steps specific to your model, consult your user manual.

5. Why does my Greenworks pressure washer keep losing pressure?

There are a number of reasons why your Greenworks pressure washer can lose pressure, such as blockages in the nozzle, a broken unloader valve, or problems with the pump. To bring back steady pressure, thoroughly examine and treat these possible reasons.


In conclusion, with the correct information and direction, Greenworks pressure washer troubleshooting is a smooth path to resolving issues swiftly. This procedure entails determining the underlying causes and implementing the necessary fixes, regardless of the problems you’re having with leaks, low water pressure, or other concerns. Appropriate use and routine maintenance can greatly contribute to averting these issues before they arise. You can maintain the flawless operation of your Greenworks pressure washer for all of your cleaning and outdoor requirements with a little perseverance and the knowledge you’ll get from our troubleshooting guide.

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