Simpson Pressure Washer Soap Dispenser Not Working [Problems & Solutions]

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Updated in April 2025 | By John

Do you have a Simpson pressure washer that isn’t dispensing soap You’re not alone. This is a common problem that can be frustrating and inconvenient. But don’t worry, it’s usually an easy fix.

In this guide, I’ll walk you through the steps to troubleshoot and fix a Simpson pressure washer soap dispenser that isn’t working. I’ll also provide some tips on how to prevent this problem from happening in the future.

So if your Simpson pressure washer soap dispenser isn’t working, read on for help!

Why Simpson Pressure Washer Soap Dispenser Not Working

Blocked Hose

The most common cause of a Simpson Pressure Washer Soap Dispenser not working is a blocked hose. This can be caused by a build-up of soap, dirt, or debris. To fix this, disconnect the hose from the pressure washer and the soap container and clean it thoroughly.

Clogged Nozzle

Another common cause of a Simpson Pressure Washer Soap Dispenser not working is a clogged nozzle. This can be caused by a build-up of soap, dirt, or debris. To fix this, remove the nozzle from the pressure washer and clean it thoroughly.

Faulty Soap Container

In some cases, the soap container itself may be faulty. This could be due to a crack or leak, or the container may not be compatible with the pressure washer. If you suspect that the soap container is faulty, you should replace it with a new one.

Incorrect Soap Type

It is important to use the correct type of soap in your Simpson Pressure Washer Soap Dispenser. Some soaps are not designed for use with pressure washers and can damage the dispenser or the pressure washer itself. Make sure to use a soap that is specifically designed for use with pressure washers.

Low Pressure

If the pressure of your Simpson Pressure Washer is too low, the soap may not be able to reach the nozzle and will not be dispensed properly. To fix this, you should check the pressure of your pressure washer and make sure that it is within the recommended range.

How to Troubleshoot and Fix a Simpson Pressure Washer Soap Dispenser

Symptoms of a Simpson Pressure Washer Soap Dispenser Not Working

There are a few different symptoms that may indicate that your Simpson pressure washer soap dispenser is not working properly. These include:

The soap dispenser does not dispense any soap when you press the trigger.
The soap dispenser leaks soap when you are not using it.
The soap dispenser clogs up and does not dispense soap evenly.

Troubleshooting a Simpson Pressure Washer Soap Dispenser

If you are experiencing any of the symptoms listed above, you can try troubleshooting the soap dispenser yourself. Here are a few things to check:

Check the soap reservoir:
Make sure that the soap reservoir is full and that the soap is not too thick. If the soap is too thick, you can thin it out by adding a little water.

Check the soap dispenser hose:
Make sure that the hose is not kinked or blocked. If the hose is blocked, you can try clearing it out with a wire hanger.

Check the soap dispenser nozzle:
Make sure that the nozzle is not clogged. If the nozzle is clogged, you can try cleaning it with a toothpick or a needle.

If you have checked all of these things and the soap dispenser is still not working, you may need to replace the soap dispenser. You can purchase a replacement soap dispenser from the Simpson website or from a local hardware store.

How to Fix a Simpson Pressure Washer Soap Dispenser

If you have determined that the soap dispenser needs to be replaced, you can follow these steps to fix it:

1. Turn off the power to the pressure washer and disconnect the hose from the gun.
2. Remove the soap reservoir from the pressure washer.
3. Remove the old soap dispenser from the soap reservoir.
4. Install the new soap dispenser in the soap reservoir.
5. Reattach the soap reservoir to the pressure washer.
6. Reattach the hose to the gun.
7. Turn on the power to the pressure washer and test the soap dispenser.

Once you have replaced the soap dispenser, you should be able to use your pressure washer to clean your home or property without any problems.

FAQs: Simpson Pressure Washer Soap Dispenser Not Working

Why is my Simpson pressure washer soap dispenser not working?

There are a few possible reasons why your Simpson pressure washer soap dispenser might not be working. Here are some of the most common causes:

The soap dispenser is clogged: This is the most common cause of a soap dispenser not working. To fix this, try cleaning the soap dispenser with a degreaser or a vinegar solution.

The soap dispenser is not getting enough water: If the soap dispenser is not getting enough water, it will not be able to dispense soap properly. To fix this, make sure that the water supply to the soap dispenser is turned on and that the water pressure is sufficient.

The soap dispenser is not turned on: Make sure that the soap dispenser is turned on. This is usually a simple switch that can be found on the front of the pressure washer.

The soap dispenser is not compatible with your pressure washer: Some soap dispensers are only compatible with certain types of pressure washers. Make sure that the soap dispenser you are using is compatible with your pressure washer.

How do I clean the soap dispenser on my Simpson pressure washer?

To clean the soap dispenser on your Simpson pressure washer, you will need:

A degreaser or a vinegar solution
A toothbrush
A bucket
A hose

1. Turn off the power to the pressure washer and disconnect the hose from the water supply.
2. Remove the soap dispenser from the pressure washer.
3. Fill a bucket with the degreaser or vinegar solution.
4. Dip the toothbrush into the solution and use it to scrub the inside of the soap dispenser.
5. Rinse the soap dispenser thoroughly with water.
6. Reattach the soap dispenser to the pressure washer.
7. Turn on the power to the pressure washer and test the soap dispenser.

How do I make sure that my Simpson pressure washer soap dispenser is getting enough water?

To make sure that your Simpson pressure washer soap dispenser is getting enough water, you will need to check the water supply to the soap dispenser and the water pressure.

Check the water supply to the soap dispenser: Make sure that the water supply to the soap dispenser is turned on and that there is no kink in the hose.

Check the water pressure: The water pressure to the soap dispenser should be between 20 and 40 psi. If the water pressure is too low, the soap dispenser will not be able to dispense soap properly.

How do I turn on the soap dispenser on my Simpson pressure washer?

To turn on the soap dispenser on your Simpson pressure washer, you will need to find the soap dispenser switch. This is usually a small switch located on the front of the pressure washer.

1. Turn on the power to the pressure washer.
2. Find the soap dispenser switch.
3. Press the soap dispenser switch to turn it on.

How do I know if my Simpson pressure washer soap dispenser is compatible with my pressure washer?

To know if your Simpson pressure washer soap dispenser is compatible with your pressure washer, you will need to check the model number of the soap dispenser and the pressure washer. The model number of the soap dispenser will be printed on the soap dispenser itself. The model number of the pressure washer will be printed on the nameplate of the pressure washer.

If the model numbers of the soap dispenser and the pressure washer match, then the soap dispenser is compatible with the pressure washer. If the model numbers do not match, then the soap dispenser is not compatible with the pressure washer.

Also Read: Simpson Pressure Washer Soap Injector Not Working

About The Author

I am John, and I am the creator of this website. I have been in the woodworking industry for about 5 years. I developed my passion for DIY projects around the house when I was in high school. I have discovered a new appreciation for those who have the experience to pass along their expertise. They know what works best and are able to help others. I am proud to be among them.

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