Burner Not Working On Pressure Washer [Cause & Proven Fixes]

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Updated in April 2025 | By John

Your pressure washer is one of the most important tools in your arsenal for cleaning your home and property. But when the burner isn’t working, it can be a major inconvenience. Not only can it make it difficult to clean your home, but it can also be dangerous.

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

So if your pressure washer burner isn’t working, don’t despair. With a little troubleshooting, you can usually get it up and running again in no time.

Why Burner Not Working On Pressure Washer

Why Burner Not Working On Pressure Washer

No Gas

The most common reason for a pressure washer burner not working is that there is no gas. Check the gas line to make sure that it is connected properly and that there is gas in the tank.

Bad Gas

If there is gas in the tank, but the burner is still not working, it could be because the gas is bad. Try draining the tank and refilling it with fresh gas.

Dirty Burner

The burner can also become dirty over time, which can prevent it from working properly. To clean the burner, remove it from the pressure washer and use a wire brush to clean the burner ports.

Bad Spark Plug

If the burner is sparking, but the pressure washer is still not starting, it could be because the spark plug is bad. Try replacing the spark plug.

Bad CDI Box

The CDI box is responsible for sending the spark to the spark plug. If the CDI box is bad, the spark plug will not fire and the pressure washer will not start. Try replacing the CDI box.

Bad Gas Valve

The gas valve controls the flow of gas to the burner. If the gas valve is stuck open or closed, the pressure washer will not start. Try replacing the gas valve.

Bad Pressure Switch

The pressure switch sends a signal to the gas valve to open when the pressure washer reaches a certain pressure. If the pressure switch is bad, the gas valve will not open and the pressure washer will not start. Try replacing the pressure switch.

How to Troubleshoot: Burner Not Working on Pressure Washer

A pressure washer is a powerful tool that can be used for a variety of tasks, from cleaning driveways to removing paint. However, like any other machine, pressure washers can malfunction. One common problem is a burner that doesn’t work. This can be a frustrating issue, but it’s usually easy to fix.

Troubleshooting Steps

To troubleshoot a pressure washer burner that isn’t working, follow these steps:

1. Check the power supply:
Make sure that the pressure washer is plugged in and that the power switch is turned on.

2. Check the fuel supply:
Make sure that the pressure washer has fuel and that the fuel line is connected properly.3. Check the spark plug:
Remove the spark plug and inspect it for damage. If the spark plug is fouled or damaged, replace it with a new one.

4. Check the fuel filter:
Remove the fuel filter and inspect it for dirt or debris. If the fuel filter is dirty, replace it with a new one.

5. Check the air filter:
Remove the air filter and inspect it for dirt or debris. If the air filter is dirty, replace it with a new one.

6. Check the carburetor:
The carburetor is a complex component, so it’s best to have this checked by a qualified technician.

Conclusion

By following these steps, you can troubleshoot a pressure washer burner that isn’t working. If you’re unable to fix the problem yourself, it’s best to take the pressure washer to a qualified technician.

Also Read: Burner On Pressure Washer Not Working

FAQs: Burner Not Working on Pressure Washer

Why is my burner not working?

There are a few possible reasons why your burner might not be working. Here are some of the most common causes:

The burner is not getting enough fuel: Make sure that the fuel tank is full and that the fuel line is clear of obstructions.

The burner is not getting enough air: Check the air filter and make sure that it is clean.

The burner is not getting enough electricity: Check the power cord and make sure that it is plugged in properly.

The burner is not properly adjusted: Check the burner settings and make sure that they are correct for your model of pressure washer.

The burner is damaged: If the burner is damaged, it will need to be replaced.

How do I troubleshoot a burner that is not working?

If your burner is not working, here are some steps you can take to troubleshoot the problem:

1. Check the fuel tank: Make sure that the fuel tank is full and that the fuel line is clear of obstructions.
2. Check the air filter: Remove the air filter and check it for dirt or debris. If the air filter is dirty, clean it or replace it.
3. Check the power cord: Make sure that the power cord is plugged in properly.
4. Check the burner settings: Make sure that the burner settings are correct for your model of pressure washer.
5. Inspect the burner: Look for any signs of damage, such as cracks or burns. If the burner is damaged, it will need to be replaced.

How do I fix a burner that is not working?

If you have determined that the problem with your burner is due to a lack of fuel, air, or electricity, you can usually fix the problem by following the troubleshooting steps listed above. However, if the problem is due to a damaged burner, you will need to replace the burner.

How can I prevent my burner from malfunctioning?

To prevent your burner from malfunctioning, you can take the following steps:

Keep the fuel tank full: A full fuel tank will help to prevent the burner from running out of fuel.

Clean the air filter regularly: A dirty air filter can restrict airflow to the burner, which can cause it to malfunction.

Inspect the burner regularly: Look for any signs of damage, such as cracks or burns. If you see any damage, have the burner repaired or replaced.

What should I do if my burner is still not working after troubleshooting?

If you have troubleshooted the problem and your burner is still not working, you should contact a qualified technician for help. The technician will be able to diagnose the problem and make the necessary repairs.

 

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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