Pressure Washer Loses Pressure When The Trigger Is Pulled: 5 Surprising Reasons!

Have you ever wondered that pressure washer loses pressure when the trigger is pulled? No more worries, you have come at the right place. A pressure washer loses pressure when the trigger is lifted, and a pressure washer usually indicates a defective unloader valve. Among the essential elements of a pressure washer is the unloader valve.

When the pressure washer is pushed, it might shut off due to obstructions in the piston rod, corroded O-rings, a loose tension, an incorrectly adjusted unloader valve, and a malfunctioning pressure washer trigger.

pressure washer loses pressure when the trigger is pulled

A power washer is an important piece of equipment for urging grime out of a variety of surfaces around the home and on the automobile. It’s pleasant to clean unclean surfaces successfully with a power washer till the pressure washer breaks down. Whenever the trigger is pressed on the pressure washer, the most typical issue is that it stops. Learn more about it!


Reasons Behind Pressure Washer Loses Pressure When Trigger Is Pulled

There are various reasons behind the power washer losing its pressure when the triggered is pulled; read below- mentioned reasons to completely understand why the pressure washer loses pressure when the trigger is pulled.


#1. Piston failure

The most important aspect of the unloader valve is the piston, which regulates pressure persistence. When the pressure washer is turned on, the piston travels back and forward between. The pressure washer turns off when this head action is halted or stopped. Remove the piston from the unloader valve to check it. Know the symptoms of bad piston rings..


#2. Faulty o-rings

Discharge from the oil pump is caused by faulty and deteriorating O-rings, which prevents the unloader valve from working correctly. When the trigger is pressed, the pressure washer turns off as a response. The unloader valve’s O-rings must be checked and replaced if fractured.


#3. Unloader valve problem

Your unloader valve is why most pressure washer issues begin and conclude. The unloader valve regulates pressure and permits high-pressure water to emerge from the spout. When the trigger is pulled, it deflects the movement of liquid into a cycle to maintain high pressure. The motor shuts off when the pressure in the pump surpasses the motor pressure. Cracked O-rings, excessive dirt in the spring, or a blocked shaft are the most prevalent difficulties in the unloader valve. 


#4. Irregular pressure setting of the unloader valve

When the trigger is pulled, high-pressure conditions decrease the motor’s capabilities. The pressure relief valve does not enable the water to divert in the cycle to the intake to relieve pressure at higher settings. This causes the pressure washer to halt by increasing the pressure in the machine. To minimize pressure build-up that causes the pressure washer to shut off, modify the configuration so that the unloader valve can send the water back to the intake. It may also be a good idea to read about how to adjust unloader valve on pressure washer.


#5. Faulty trigger

A faulty pressure washer trigger is also why your pressure washer was lost. You must ensure that your motivation is in working condition; immediately replace it if you find any problem.


Solutions For How You Can Fix All Above Mentioned Issues.

You can quickly fix your pressure washer that loses pressure when the trigger is pulled, read all these below-mentioned solutions to correct these issues.


#1. Inspect leakages 

The lawn hose or high-pressure line may have minor leaks, holes, or rips that cause your pressure washer to lose power whenever you squeeze the trigger. If you detect leaks, fix them or replace the pipe, your pressure problems should go away. Where there is no leakage, this is also an excellent time to inspect the line for any bends impeding water flow.


#2. Inspect water supply

The water supply rate may be less than the GPM of your power washer, causing it to lose power. A gallon per minute that your pressure washer requires to perform correctly is measured in GPM. The water flow from your nozzle should create the same number of GPMs as your pressure washer, if not more. It’s possible that if these don’t match, your low pressure is the result of this.


#3. Check the blockages in the nozzle

Disconnect the nozzle and use a spotlight to shine through the tip of the nozzle. The light at the other end of the aperture will not be visible if there is an impediment. Dig out the blockage using a little instrument such as a needle or a twisted knot cable. You can clear the clog with an air pump if you have one. Know how to unclog a pressure washer.


#4. Change the nozzle

Many people who own pressure washers have a special nozzle tip regularly. The nozzle will wear out over time if it is used often. Switching out the nozzle tip for the one that uses the most is the most straightforward approach to see if the nozzle is burnt out. If the nozzle tip is burnt out, you’ll notice it immediately away.


It’s A Wrap! 

We were thrilled to know that you have learned all about pressure washer loses pressure when the trigger is pulled; if you face the same situation, follow the abovementioned solutions to fix the issues. Thank you, friends, for staying with us!

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