Why pressure washer dies when trigger is pulled? Pressure washers are a must-have for any professional or home-owner. They give you the power to clean your patio, driveway, and decking in a matter of minutes. But, like any machine, they can malfunction.
Pressure washer problems can range from the trigger not working to the pressure washer dying when you pull the trigger. The pressure washer dying when you pull the trigger is a common problem. Read this article until end to know more about why pressure washer dies when trigger is pulled. In this blog, we also have an article about simpson pressure washer that you might want to read about it.
What Is A Pressure Washer
A pressure washer is a machine that uses water pressure to clean surfaces. It’s typically used to clean things like cars, decks, sidewalks, and patios. There are different types of pressure washers, but the most common are gas-powered. A pressure washer is a great way to get your car clean or clear snow off a deck.
But be sure to read our buyer’s guide before buying a pressure washer. Some people think that pressure washing can damage their car paint, especially if they use a high-pressure sprayer. In reality, it only takes about 30 seconds for the chemicals in the wash solution to dry on your vehicle. So unless you’re going to leave the car outside all day, there should be no harm done.
Why Pressure Washer Dies When Trigger Is Pulled?
A pressure washer stall is caused by a faulty unloader valve. The valve cycles the water back into the pump system, diverting the flow through the pump. When the trigger is released, the valve redirects the water back into the loop. This helps to retain pressure while discharging the water through the nozzle.
When you pull the trigger, the water flow should be steady. There are several reasons why this could happen. Check your connections first. Then check the hose connection. Next, make sure the nozzle is connected properly. Finally, check the tank valve. If none of these things work, then there may be something wrong with the pump or motor.
● Faulty unloader valve
Pressure washers use an unloader valve to control the pressure of the water coming out of the hose. The unloader valve is located at the bottom of the tank. Most problems begin with the unloader valve because it controls the pressure of the water being sprayed. Cracked O-rings cause leaks, and dirt accumulates inside the spring causing the valve to stick open. A stuck shaft causes the valve to be unable to close completely.
● Problem with the piston
The piston controls pressure retention and it is one of the most essential parts of the unloader valves. The piston moves back-and-forth when the pressure washer operates. When this back-and-forth movement is stopped or interrupted the pressure washer shuts down. To inspect the piston you should take it out of the unloader valve and check if there is any damage.
● Worn out Orings
Faulty and deteriorated O-ring causes leakage from the oil pump. This prevents the unloader valve from working properly. As a result, pressure washer shuts off while you pull trigger. You must check O-rings of the Unloader Valve and replace them if they’re cracked.
●Poor pressure setting of the unloader valve
High-pressure settings inhibit the ability of the engine when the trigger is released, but the unloader valve diverts the water back to the input to prevent pressure buildup.
● Problem with the pressure washer trigger
Trigger issues are common. Try using another trigger to see if it works better. If it doesn’t work, replace the trigger.
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