Low Pressure Siphon Not Working Pressure Washer [A Quick Fix]

If your pressure washer is not producing enough pressure, it can be a major inconvenience. You may not be able to clean your home or car effectively, and you may even be putting yourself at risk of injury.

In this guide, I will walk you through the steps to troubleshoot a low-pressure pressure washer. I will explain the common causes of this problem and how to fix them. By the end of this guide, you will be able to get your pressure washer back up and running in no time.

Why Low Pressure Siphon Not Working Pressure Washer

Dirty Filter

The most common cause of low pressure in a pressure washer is a dirty filter. The filter traps dirt and debris that can clog the pump and restrict the flow of water. To check the filter, remove it from the pump and inspect it for dirt and debris. If the filter is dirty, clean it with a brush and warm water.

Clogged Nozzle

Another common cause of low pressure is a clogged nozzle. The nozzle is the part of the pressure washer that directs the water stream. If the nozzle is clogged, it can restrict the flow of water and cause low pressure. To check the nozzle, remove it from the gun and inspect it for dirt and debris. If the nozzle is clogged, clean it with a brush and warm water.

Defective Pump

If the filter and nozzle are clean and the pressure is still low, the problem may be a defective pump. The pump is the heart of the pressure washer and is responsible for generating the pressure. If the pump is defective, it will not be able to generate enough pressure to produce a strong water stream. To test the pump, remove the nozzle from the gun and connect the gun directly to the pump. If the pressure is still low, the pump is defective and will need to be replaced.

Low Water Pressure

If the water pressure at the source is low, it can also cause low pressure in the pressure washer. To check the water pressure, turn on the faucet and attach a pressure gauge to the faucet. The water pressure should be at least 40 psi. If the water pressure is low, you will need to contact your water supplier to increase the pressure.

How to Troubleshoot: Low Pressure Siphon Not Working Pressure Washer

Symptoms of a Low Pressure Siphon

There are a few symptoms that can indicate that your pressure washer’s siphon is not working properly. These include:

Low water pressure:
The most obvious sign of a problem with your siphon is low water pressure. If you’re not getting the pressure you need to clean your surfaces, it’s likely that the siphon is not working properly.

Water leaking from the pump:
If you see water leaking from the pump, it’s a sign that the siphon is not creating a tight seal. This can cause the pump to work harder than necessary, which can lead to premature wear and tear.

Suction noise:
If you hear a suction noise coming from the pump, it’s a sign that the siphon is not working properly. This noise is caused by air being drawn into the pump, which can also lead to premature wear and tear.

Troubleshooting a Low Pressure Siphon

If you’re experiencing any of the symptoms listed above, it’s important to troubleshoot the problem to determine what’s causing it. Here are a few things you can check:

Check the hoses:
Make sure that the hoses connecting the pump to the water source and the wand are not kinked or damaged. If they are, replace them.

Check the filter:
The filter on your pressure washer can become clogged with dirt and debris, which can restrict water flow. Clean the filter according to the manufacturer’s instructions.

Check the gasket:
The gasket on the pump can wear out over time, which can cause a leak. Replace the gasket if it’s damaged.

Check the o-ring:
The o-ring on the wand can also wear out over time, which can cause a leak. Replace the o-ring if it’s damaged.

If you’ve checked all of these things and the problem persists, it’s likely that the siphon itself is damaged. In this case, you’ll need to replace the siphon.

How to Replace a Siphon

Replacing a siphon is a relatively simple task that can be completed in just a few minutes. Here’s how to do it:

1. Turn off the power to the pressure washer and disconnect the hoses from the pump.
2. Remove the old siphon from the pump.
3. Apply a thin coat of plumber’s grease to the new siphon.
4. Insert the new siphon into the pump and tighten the screws.
5. Reconnect the hoses to the pump.
6. Turn on the power to the pressure washer and test the siphon.

If you’re not comfortable performing this repair yourself, you can take your pressure washer to a qualified repair shop.

Also Read: Low Pressure Suds Not Working On My Pressure Washer

FAQs about Low Pressure Siphon Not Working Pressure Washer

What causes a low pressure siphon not to work on a pressure washer?

There are a few possible causes for a low pressure siphon not to work on a pressure washer. These include:

A clogged or kinked hose: If the hose that connects the pressure washer to the water source is clogged or kinked, it can restrict the flow of water and cause the pressure washer to lose pressure.

A dirty filter: The filter on a pressure washer helps to keep dirt and debris from entering the pump. If the filter is dirty, it can restrict the flow of water and cause the pressure washer to lose pressure.

A faulty pump: If the pump on a pressure washer is faulty, it may not be able to generate enough pressure to operate the spray nozzle.

A faulty regulator: The regulator on a pressure washer controls the amount of pressure that is output by the pump. If the regulator is faulty, it may not be able to regulate the pressure properly, which can cause the pressure washer to lose pressure.

How do I fix a low pressure siphon not working on a pressure washer?

To fix a low pressure siphon not working on a pressure washer, you will need to identify the cause of the problem and then take the necessary steps to fix it.

If the hose is clogged or kinked,: you will need to disconnect the hose from the pressure washer and the water source and then clear the clog or kink.

If the filter is dirty,: you will need to remove the filter from the pressure washer and clean it with warm, soapy water.

If the pump is faulty,: you will need to have the pump repaired or replaced.

If the regulator is faulty,: you will need to have the regulator repaired or replaced.

What can I do to prevent a low pressure siphon not working on my pressure washer?

There are a few things you can do to prevent a low pressure siphon not working on your pressure washer. These include:

Keep the hoses clean and free of debris: Make sure to regularly inspect the hoses on your pressure washer for any signs of damage or wear. If you see any damage, replace the hoses immediately.

Clean the filter regularly: The filter on a pressure washer should be cleaned regularly to prevent it from becoming clogged. To clean the filter, remove it from the pressure washer and rinse it with warm, soapy water.

Have the pump and regulator regularly inspected and serviced: If you use your pressure washer regularly, it is a good idea to have the pump and regulator inspected and serviced at least once a year. This will help to ensure that they are working properly and that they are not causing any problems with the pressure washer.

What are the signs of a low pressure siphon not working on a pressure washer?

There are a few signs that you may have a low pressure siphon not working on your pressure washer. These include:

The pressure washer is not generating enough pressure to clean surfaces properly:

The pressure washer is making a loud noise:

The pressure washer is leaking water:

The pressure washer is overheating:

If you notice any of these signs, it is important to troubleshoot the problem and fix it as soon as possible.

What is the difference between a siphon and a pressure washer?

A siphon is a device that uses gravity to move liquid from one container to another. A pressure washer is a device that uses a pump to generate high-pressure water that is used to clean surfaces.

Siphons are typically used to move liquids over short distances, while pressure washers are typically used to clean surfaces over larger areas. Siphons are relatively simple devices that are easy to use, while pressure washers are more complex devices that require more maintenance.

Here is a table that summarizes the key differences between siphons and pressure washers: