Simpson Pressure Washer Trigger Not Working [A Quick Fix]

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Updated in April 2025 | By John

Your Simpson pressure washer is one of the most valuable tools in your arsenal for cleaning your home and property. But when the trigger doesn’t work, it can be incredibly frustrating. Not only is it difficult to get the job done, but it can also be dangerous. In this guide, we’ll troubleshoot the common issue of a . We’ll help you identify the problem and get your pressure washer up and running again in no time.

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Have you ever been in the middle of cleaning your driveway or siding when your Simpson pressure washer trigger suddenly stops working It’s a frustrating experience, to be sure. But don’t worry, you’re not alone. This is a common problem with Simpson pressure washers, and there are a few simple things you can do to fix it.

Reasons Why Simpson Pressure Washer Trigger Not Working

Trigger is stuck

The trigger may be stuck due to dirt or debris.
To fix this, remove the trigger from the pressure washer and clean it with a brush or compressed air.
If the trigger is still stuck, you may need to replace it.

Trigger is not aligned properly

The trigger may not be aligned properly with the hose, which can prevent it from working properly.
To fix this, align the trigger with the hose and tighten the screws that hold it in place.

Trigger is broken

The trigger may be broken if it is cracked or damaged.
If the trigger is broken, you will need to replace it.

Pressure washer is not getting enough water

If the pressure washer is not getting enough water, the trigger may not work properly.
To fix this, check the water supply to the pressure washer and make sure that it is turned on and flowing properly.
You may also need to clean the water filter if it is clogged.

How to Troubleshoot and Fix: Simpson Pressure Washer Trigger Not Working

Symptoms of a Simpson Pressure Washer Trigger Not Working

There are a few different symptoms that you may experience if your Simpson pressure washer trigger is not working properly. These include:

The trigger does not engage or disengage when you pull it.
The trigger is stuck in the engaged position.
The trigger is stuck in the disengaged position.
The trigger is leaking water.
The trigger is making a clicking noise.

Troubleshooting a Simpson Pressure Washer Trigger Not Working

If you are experiencing any of the symptoms listed above, you can try troubleshooting the problem yourself by following these steps:

1. Check the trigger assembly:
The trigger assembly is the part of the pressure washer that connects the trigger to the pump. If the trigger assembly is damaged, it can prevent the trigger from working properly. To check the trigger assembly, look for any signs of damage, such as cracks or broken parts. If you see any damage, you will need to replace the trigger assembly.

2. Check the hose:
The hose is the part of the pressure washer that connects the trigger to the gun. If the hose is damaged, it can prevent the trigger from working properly. To check the hose, look for any signs of damage, such as cracks or leaks. If you see any damage, you will need to replace the hose.3. Check the gun:
The gun is the part of the pressure washer that you hold in your hand. If the gun is damaged, it can prevent the trigger from working properly. To check the gun, look for any signs of damage, such as cracks or broken parts. If you see any damage, you will need to replace the gun.

4. Check the pump:
The pump is the part of the pressure washer that generates the pressure. If the pump is damaged, it can prevent the trigger from working properly. To check the pump, look for any signs of damage, such as leaks or overheating. If you see any damage, you will need to have the pump repaired or replaced.

Fixing a Simpson Pressure Washer Trigger Not Working

If you are unable to troubleshoot the problem yourself, you will need to take your pressure washer to a qualified technician for repairs. The technician will be able to diagnose the problem and make the necessary repairs.

Preventing a Simpson Pressure Washer Trigger Not Working

You can help prevent your Simpson pressure washer trigger from malfunctioning by following these tips:

Use the pressure washer properly:
Do not exceed the maximum pressure rating of the pressure washer. Do not use the pressure washer on delicate surfaces.

Maintain the pressure washer regularly:
Clean the pressure washer after each use. Inspect the pressure washer for any signs of damage or wear and tear. Replace worn or damaged parts as needed.

Store the pressure washer properly:
Store the pressure washer in a cool, dry place. Do not store the pressure washer with the trigger engaged.

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FAQs: Simpson Pressure Washer Trigger Not Working

Why is my Simpson pressure washer trigger not working?

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

The trigger is stuck: If the trigger is stuck, it won’t be able to release the pressure, which will prevent the pressure washer from working. To fix this, try spraying some WD-40 or a similar lubricant on the trigger and working it back and forth until it loosens up.

The trigger is broken: If the trigger is broken, it won’t be able to release the pressure or engage the pump. To fix this, you’ll need to replace the trigger.

The pressure washer is not getting enough water: If the pressure washer is not getting enough water, it won’t be able to build up pressure. This can be caused by a number of things, such as a clogged filter, a kinked hose, or a faulty pump. To fix this, you’ll need to identify the problem and fix it accordingly.

The pressure washer is overheating: If the pressure washer is overheating, it will shut down to prevent damage. This can be caused by a number of things, such as using the pressure washer for too long at a high setting, or using it in direct sunlight. To fix this, you’ll need to let the pressure washer cool down before using it again.

How do I fix a stuck Simpson pressure washer trigger?

To fix a stuck Simpson pressure washer trigger, you can try the following steps:

1. Spray some WD-40 or a similar lubricant on the trigger and work it back and forth until it loosens up.
2. If the trigger is still stuck, you can try using a small screwdriver to pry it open. Be careful not to damage the trigger.
3. If the trigger is broken, you’ll need to replace it. You can find replacement triggers at most hardware stores.

How do I replace a Simpson pressure washer trigger?

To replace a Simpson pressure washer trigger, you can follow these steps:

1. Turn off the pressure washer and disconnect it from the power source.
2. Remove the old trigger by unscrewing the screws that hold it in place.
3. Insert the new trigger into the housing and tighten the screws.
4. Reconnect the pressure washer to the power source and turn it on.

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

To make sure your Simpson pressure washer is getting enough water, you can check the following things:

The water supply hose is not kinked or blocked:

The water filter is clean:

The pump is not clogged:

The water pressure is set correctly:

If you have checked all of these things and your pressure washer is still not getting enough water, you may need to have it serviced by a qualified technician.

What do I do if my Simpson pressure washer is overheating?

If your Simpson pressure washer is overheating, you can do the following:

Turn off the pressure washer and disconnect it from the power source:

Let the pressure washer cool down for at least 30 minutes:

Check the air filter and clean it if necessary:

Check the water filter and clean it if necessary:

Check the pump and make sure it is not clogged:

If the pressure washer is still overheating, you may need to have it serviced by a qualified technician:

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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