Electric Pressure Washer Surges When Not Spraying: Causes, Fixes & Prevention

electric pressure washer surges when not spraying

Having an electric pressure washer is a fantastic tool for keeping your outdoor spaces clean and well-maintained. However, like any piece of equipment, it can sometimes develop issues that require troubleshooting. One common problem that users may encounter is a surging issue with their electric pressure washer.

Picture this: you turn on your pressure washer, and instead of a steady flow of water, it seems to surge and sputter, leaving you scratching your head. It’s frustrating, to say the least. But fear not! In this blog post, we’re going to dive deep into the world of troubleshooting electric pressure washer surging issues, so you can get back to cleaning with ease.

Whether you’re a seasoned pressure washer owner or a newbie, we’ve got you covered. Let’s get started!


Have you ever noticed that your electric pressure washer starts to surge or rev up when you’re not spraying? It can be quite perplexing, especially if you’re new to using a pressure washer. But don’t worry, you’re not alone in experiencing this issue. Many electric pressure washers surge when they’re not spraying, and there are a few reasons why this happens.

One possible cause is the burstiness of the motor, which means that it’s designed to provide bursts of power when needed. This burstiness can sometimes result in the machine revving up when there’s no spraying because it’s anticipating the need for more power. Another reason for the surging could be a clog in the nozzle or hose.

When there’s a blockage, the pressure builds up and causes the machine to surge. So, if you’re experiencing this issue, try checking for any clogs in the nozzle or hose. You could also try adjusting the pressure by turning the nozzle to a lower setting.

If these steps don’t resolve the issue, it might be worth contacting the manufacturer or a professional for further assistance.

What is an electric pressure washer?

electric pressure washer Introduction: Are you tired of scrubbing away dirt and grime from your patio or driveway? If so, then an electric pressure washer could be the solution to your cleaning woes. An electric pressure washer is a powerful tool that uses pressurized water to remove dirt, mold, and other stubborn stains. Unlike traditional manual scrubbing, an electric pressure washer can save you time and effort by quickly and efficiently cleaning large surfaces.

No more endless hours spent on your hands and knees trying to get your outdoor spaces looking presentable. With an electric pressure washer, you can blast away even the toughest grime with ease. But how does it work? And what makes it different from other types of pressure washers? Let’s take a closer look.

electric pressure washer surges when not spraying

What is surging in an electric pressure washer?

electric pressure washer, surging, burstiness, perplexity, main cause, overheating. Blogs are surging in popularity these days, but what about electric pressure washers? Surging in an electric pressure washer refers to the sudden increase in power or pressure output. It’s the burstiness that can catch you off guard and leave you scratching your head in perplexity.

So, what causes this surging phenomenon? One of the main causes is overheating. When the machine gets too hot, it can cause the water pressure to fluctuate and surge. This can be a frustrating experience, especially when you’re in the middle of a cleaning project.

But fear not, there are ways to prevent surging and keep your electric pressure washer running smoothly and efficiently. Stay tuned to find out more!

Importance of addressing surging issue

“Addressing the surging issue of [topic]” Introduction: In today’s fast-paced and rapidly changing world, it is crucial to address the surging issue of [topic]. This issue has become increasingly important in recent years, as its impact on society and individuals cannot be ignored. Whether it’s the rise in environmental concerns, the increase in mental health issues, or the growing disparities in wealth distribution, it is clear that we need to take action.

By understanding the significance of this issue and embracing proactive solutions, we can contribute to a better future for ourselves and the generations to come.

Possible Causes of Surging

One possible cause for an electric pressure washer surging when not spraying is a clogged or malfunctioning pressure relief valve. This valve is designed to relieve excess pressure in the pump when the trigger is not engaged. However, if the valve becomes clogged or worn out, it may not function properly and can cause the machine to surge.

Another possible cause is a faulty unloader valve. This valve is responsible for redirecting the water flow back into the inlet side of the pump when the trigger is not engaged. If the unloader valve is not functioning correctly, it can cause the pressure to build up in the pump and cause the surging.

Additionally, a dirty or clogged nozzle can also cause surging. If the nozzle is partially blocked, it can disrupt the smooth flow of water and cause fluctuations in pressure. It is important to regularly clean and inspect the nozzle to ensure it is not causing any issues.

These are just a few possible causes of surging in an electric pressure washer, and it is important to troubleshoot and address the issue to prevent any further damage.

Low water supply pressure

Low water supply pressure can be frustrating, especially when you’re trying to take a relaxing shower or wash dishes. There are several possible causes for this issue, one of which is surging. Surging occurs when there are sudden fluctuations in water pressure, causing a decrease in the flow of water to your faucets and appliances.

So what exactly causes surging? Well, there are a few potential culprits. It could be due to a problem with the water main, such as a burst pipe or a valve that isn’t functioning properly. Another possibility is that there is a blockage in the pipes, restricting the flow of water.

Additionally, surging can occur if there is a problem with the pressure regulator, which controls the water pressure in your home. Whatever the cause may be, it’s important to address the issue to ensure a consistent and adequate water supply.

Air in the water supply hose

One possible cause of surging in a water supply hose is air in the line. When there is air trapped in the hose, it can disrupt the flow of water and cause it to surge or pulsate. This can happen if there was air in the system to begin with or if air gets introduced into the line through a leak or improper installation.

The presence of air in the hose can create bubbles that block the flow of water and cause it to surge as it tries to push past the air pockets. To fix this issue, you can try bleeding the air out of the line by turning on the water and opening the faucet gradually until all the air is released. If this doesn’t resolve the problem, you may need to check for leaks or consult a professional plumber for further assistance.

Faulty pressure sensor

pressure sensor, surging pressure, possible causes, faulty sensor

Clogged inlet filter

surging, clogged inlet filter

Insufficient power supply

“Insufficient power supply” Main Sub-heading: “Possible Causes of Surging” When it comes to dealing with power supply issues, there can be several causes behind surges and inadequate power flow. One possible cause of surging is an insufficient power supply. Imagine your electrical system being a highway, and the power supply is the fuel that keeps everything running smoothly.

If there’s not enough fuel, your system won’t be able to operate efficiently, leading to surges and fluctuations in power. This can happen if you have too many appliances or devices connected to the power grid, drawing more power than your system can handle. Another potential cause of an insufficient power supply is outdated or faulty wiring in your home or building.

Over time, wiring can become worn or damaged, which can reduce the effectiveness of the power flow and result in surges. In some cases, the power supply from the grid itself may not be sufficient to meet the demand of all the users in your area, leading to inadequate power flow. It’s important to identify and address these issues to ensure a stable and reliable power supply.

How to Fix Surging Issue

If your electric pressure washer surges when not spraying, there are a few possible culprits and solutions to fix this issue. One common cause is a clogged nozzle or spray tip. When the nozzle is clogged, the pressure builds up in the machine and causes it to surge when you’re not spraying.

To fix this, you can remove the nozzle and clean it thoroughly with a small wire or paperclip. Another possible cause is a damaged or worn pressure hose. If the hose is leaking or has holes, it can cause the pressure washer to surge.

In this case, you may need to replace the hose. Finally, check the water supply hose for any kinks or obstructions. A restricted water flow can also cause surging.

Straightening out any kinks or removing any blockages should resolve the issue. By troubleshooting and addressing these potential causes, you should be able to fix the surging issue with your electric pressure washer.

Check the water supply pressure

water supply pressure, fix surging issue

Bleed air from the water supply hose

If you’re experiencing a surging issue with your water supply hose, there’s a simple fix that you can try: bleeding air from the hose. Sometimes, air can become trapped in the hose, causing the water to surge and fluctuate in pressure. To fix this, start by turning off the water supply and disconnecting the hose from both the faucet and the water source.

Hold the hose upright and gently shake it to help release any trapped air. Then, slowly reopen the water supply valve, allowing water to flow through the hose and push out any remaining air. Once you see a steady flow of water without any surging, you can reconnect the hose and test it out.

This method should help alleviate any surging issues and ensure a consistent water flow for your needs.

Inspect and clean the pressure sensor

pressure sensor, fix surging issue, inspect and clean

Clean or replace the inlet filter

fix surging issue

Ensure proper power supply

power supply, surging issue

Preventive Maintenance Tips

If your electric pressure washer surges when it’s not spraying water, there are a few preventive maintenance tips you can try to resolve the issue. First, check the water inlet filter for any clogs or debris that may be restricting the flow of water. It’s important to clean or replace the filter regularly to ensure proper water pressure.

Additionally, inspect the high-pressure hose for any leaks or damage. A damaged hose can disrupt the flow of water and cause the pressure washer to surge. Also, make sure the nozzle is clean and functioning properly.

A clogged or faulty nozzle can affect the water flow and cause the pressure washer to surge. Finally, check the power source to ensure a stable and consistent supply of electricity. Fluctuations in power can cause the pressure washer to surge and should be addressed.

By following these preventive maintenance tips, you can keep your electric pressure washer running smoothly and avoid any surging issues.

Regularly clean the inlet filter

Preventive Maintenance Tips Regularly clean the inlet filter When it comes to maintaining your devices, regular cleaning is an essential step in preventing damage and extending their lifespan. One crucial component that often gets overlooked is the inlet filter. This little piece plays a big role in keeping your device running smoothly by preventing dirt, dust, and debris from entering the system.

Over time, the filter can become clogged and restrict airflow, leading to poor performance and potential overheating issues. That’s why it’s essential to regularly clean the inlet filter to ensure proper functioning. Think of it as giving your device a breath of fresh air! By simply removing the filter and gently washing it with water or a mild detergent, you can remove any buildup and keep your device running at its best.

So, next time you’re performing your routine maintenance tasks, don’t forget to include the cleaning of the inlet filter. Your device will thank you for it!

Check for any leaks

In order to ensure that your home is in good condition, it’s important to check for any leaks on a regular basis. Leaks can cause significant damage over time, leading to costly repairs and even health hazards. Start by checking all of the faucets in your home, both inside and outside.

Look for any signs of dripping or pooling water. If you notice any leaks, it’s essential to have them repaired as soon as possible. Additionally, check your toilets for any leaks by adding a few drops of food coloring to the tank.

If the color appears in the bowl, there is a leak that needs to be addressed. Be sure to also examine your pipes for any signs of moisture or water stains. Leaks in pipes can be more difficult to detect, so if you notice an increase in your water bill or any unexplained water damage, it’s a good idea to call a professional to inspect your plumbing system.

By taking the time to check for any leaks and addressing them promptly, you can protect your home from water damage and maintain its overall value and safety.

Store the pressure washer properly

When it comes to maintaining your pressure washer, one important aspect to consider is how to properly store it. Proper storage can help prolong the lifespan of your equipment and prevent any damage. One of the first steps in storing your pressure washer is to make sure it is completely turned off and disconnected from the power source.

This will help prevent any accidental starts or electrical issues. Additionally, it is important to drain any remaining water and fuel from the machine. This will help prevent any potential damage to the pump or engine that could occur from freezing or corrosion.

Once the pressure washer is drained, it is recommended to store it in a clean and dry location. This will help prevent any dust or debris from clogging the machine and potentially causing damage. It is also a good idea to cover the pressure washer with a tarp or a protective cover to further shield it from moisture and other elements.

By following these simple steps, you can ensure that your pressure washer is stored properly and ready for use whenever you need it.


Even the strongest of suds can’t hide the fact that your electric pressure washer is experiencing a surge when it’s not spraying. It’s almost as if your washer is channeling its inner superhero, trying to save energy whenever it can. But fear not, dear washer owner, for there is a simple explanation behind this cunning power move.

You see, electric pressure washers are equipped with a clever feature called an automatic shutdown system. This system is designed to save energy, protect the motor, and prevent overheating when the trigger is not engaged. It’s like a secret identity, going incognito when not in use to conserve power.

When you release the trigger, the pressure washer detects the sudden drop in demand and diverts power away from the motor, causing it to surge briefly as it adjusts to the new energy flow. It’s like it’s saying, “I’m just taking a quick breather before I unleash my full cleaning potential again!” So, rest assured that this surge when not spraying is not a sign of malfunction. It’s actually a superheroic power-saving move by your electric pressure washer, ensuring efficient operation and extending its lifespan.

It’s like having your own cleaning Avenger, going green and powerful at the same time. Now, go forth and tackle those tough stains, knowing that your electric pressure washer is not only cleaning diligently but also saving the day in its own unique way. Keep an eye out for any other hidden superpowers your washer might possess, because with great cleaning power comes great responsibility!”


Why does my electric pressure washer surge when not spraying?
Electric pressure washers use a motor to pump water at high pressure. When the spray gun is not being used, the pressure builds up and causes the motor to surge. This is a normal behavior and does not indicate any issues with the pressure washer.

How can I prevent my electric pressure washer from surging when not spraying?
To prevent surging, you can release the trigger on the spray gun to relieve the pressure buildup. This will stop the motor from surging. Alternatively, you can turn off the pressure washer when not in use to avoid the surge altogether.

Is it harmful for my electric pressure washer to surge when not spraying?
No, it is not harmful for the pressure washer to surge when not spraying. The surge is a result of the pressure buildup and does not cause any damage to the motor or other components of the pressure washer.

Can surging affect the performance of my electric pressure washer?
Surging does not directly affect the performance of the pressure washer. However, if the surging is accompanied by a decrease in pressure or other issues, it could indicate a problem with the pressure washer that needs to be addressed.

Is there a way to adjust the pressure of my electric pressure washer to prevent surging?
Some electric pressure washers come with adjustable pressure settings. By lowering the pressure setting, you can reduce the surging when not spraying. Refer to the user manual of your pressure washer to see if it has this feature.

Should I be concerned if my electric pressure washer surges excessively?
A moderate amount of surging is normal for electric pressure washers. However, if the surging is excessive or accompanied by other issues such as a loss of power or strange noises, it may indicate a problem with the pressure washer that requires professional attention.

Can a malfunctioning pressure regulator cause surging in my electric pressure washer?
Yes, a malfunctioning pressure regulator can cause surging in your electric pressure washer. If you suspect that the pressure regulator is faulty, it is best to have it checked and replaced if necessary by a qualified technician.

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