If you’re having issues with your pressure washer shutting off when you pull the trigger, you’re not alone. In this article, we’ll troubleshoot the issue and help you get your pressure washer up and running again.
Let’s dive in.
Pressure Washer Shuts Off When Trigger is Pulled
Reasons why a pressure washer may shut off when the trigger is pulled and how to fix them
Trigger Malfunction
If your pressure washer shuts off when trigger is pulled, it could be simply a problem with the trigger. Like any other pressure washer part, the trigger also needs regular maintenance and service. So, make sure it’s in working condition.
Unloader Valve Problems
A faulty unloaded valve can be another reason why your pressure washer is shutting off when you pull the trigger.
Importance of an Unloader Valve
The unloader valve is important because it prevents the pump from overworking when the trigger is released. When the trigger is released, the unloader valve opens and allows water to flow back into the pump, which relieves pressure on the pump and prevents it from overheating.
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Keep the Unloader Valve Clean
If your pressure washer has an unloader valve, it is important to keep it clean and free of debris. If the unloader valve becomes clogged, it can cause the pressure washer to overheat and shut off. You can clean the unloader valve by removing it from the pump and using a wire brush to remove any build-up on the valve internals.
Inspect Unloader Valve Parts
To check your unloader valve for potential problems, you might have to disassemble it and do a proper inspection.
After you open it, check the…
- Piston
- O-rings
- Spring
…to make sure they’re working fine.
Incorrect Settings
High-pressure settings on your unloader valve can be another reason your pressure washer shuts off as soon as you pull the trigger.
So, make sure to optimize the pressure settings on your unloader valve.
Other Possible Reasons Why Your Pressure Washer Shuts Off When Trigger is Pulled
Now, there can be other reasons why it’s happening, including:
- Unreleased pressure
- Unclean spark plugs on a gas pressure washer
- Clogged or unclean air filters
- Insufficient water supply to the pump
- Insufficient oil level
So, if your unloader valve is working perfectly, make sure everything else is in place, too.
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Conclusion: Pressure Washer Shuts Off When Trigger is Pulled
In conclusion, if your pressure washer shuts off when you pull the trigger, there are a few possible causes. First, check the water supply. If the water pressure is too low, the pump will shut off.
Second, inspect your unloader valve for malfunction. If you can’t find the problem, take the pressure washer to a repair shop.
