Question: Why Does My Pressure Washer Dies When Trigger Released?

How do you remove a pressure washer unloader valve?

How to Remove the Pressure Washer Unloader ValveInstall a high-pressure tip on the pressure washer.Locate the nut located on the top of the unloader valve.

Turn the pressure adjusting knob in a counterclockwise direction until it is completely removed.

Remove the washer and spring to expose the piston rod and locking nuts that hold the unloader valve in place.More items…•.

Why does my pressure washer keep stalling?

A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. … This sticky fuel can clog up the carburetor and cause the engine to run stall. If the carburetor is clogged, try cleaning it with carburetor cleaner.

What is the unloader valve on a pressure washer?

An unloader valve is the component of a pressure washer that allows the pump to bypass the flow of water back to the pump while the spray gun is not being used. Most unloader valves also act as a pressure regulator for the output pressure of the pump.

How do I reduce the pressure on my pressure washer?

Then turn the water tap on and pull the trigger gun to release water from the system at the garden hose water pressure before starting the engine or motor. This will release all the pressure from the system and allow the pump to function. Use a needle to clear the nozzle tip of any debris.

Why can’t I pull start my pressure washer?

If the starter rope won’t budge when you try to pull it, the engine may be locked up or the recoil starter may have failed. … Remove the spark plug and then pull the starter rope to see if the engine spins. If it does, pull the starter rope a few more times to clear oil out of the cylinder through the spark plug hole.

Why does my electric power washer keep shutting off?

When the air filter gets clogged, you must replace it immediately. The engine of your electric pressure washer turns on and off when its unloader valve fails, so you must check it regularly. Sometimes replacing the capacitor can also help solve your electric pressure washer’s problem.

What causes pressure washer pump failure?

Pump Problems The two most important issues concerning breakdowns of pressure washer pump are pump cavitation and overheating due to excessive time in by-pass. Pump cavitation is caused when there is not enough water supplied to the pump.

How do you know if your unloader valve is bad?

Pump motor stalling – if a pump is powered by a gasoline or diesel engine, stalling whenever the operator ceases to use it is a good sign of unloader valve failure. The buildup of pressure locks the pump’s internal components, which in turn prevents the rotation of the powered engine shaft.

How long can you continuously run a pressure washer?

Yes, it is bad to leave a pressure washer running for more than five minutes. If you cannot switch it off after a minute or three, do not idle the unit for more than five minutes. Leaving your pressure water running will damage its inner workings because as temperature builds up, the pump is at risk of damage.

What is an unloader valve?

The Unloader valve is designed to respond to an increase in pressure or a change in water flow. … The trigger on the gun and unloader valve together make up a two-part valve that directs water into the bypass of the unloader and then back in to the water inlet side of the pump or alternatively back to a header tank.

Can you run pressure washer engine without water?

Using pressure washers without water is risky and can damage your machine. The water helps to cool the pump, and without it, the pump can get overheated and breakdown.

Why is my pressure washer not spraying hard?

A: With the high pressure hose removed from the pump, attach the garden hose and turn on water. … If this does not happen there is an internal pump issue. If this does happen then there is likely a clog in one of the attachments; high pressure hose, gun, wand, or nozzle. Still having pressure washer problems?