What causes a pressure washer to stop running?
A clogged carburetor is most commonly caused by leaving fuel in the pressure washer for a long period of time. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This sticky fuel can clog up the carburetor and cause the engine to run stall.
Can a pressure washer get too hot?
Electric pressure washers can also overheat. It can happen if you leave the unit running when not in use. This often results in the pump getting running hot and finally in pump damage. Another cause of overheating in electric pressure washers is a glitch in the power supply circuit.
Do pressure washers need to cool down?
Cooling down your pressure washer properly will require a complete shut-off. Leaving them idle isn’t enough because the machine will still hold water inside the pump. As this water heats up, it will melt the seals on the pump.
How do you cool a pressure washer pump?
If the water gets too hot, it can damage seals and other components within the pump. To counteract this, occasionally squeeze the trigger on the spray gun/wand to release the water before it gets too hot. This will draw in fresh, cooler water and prevent damage to the pressure washer.
How do I know if my pressure washer pump is bad?
Several indicators will show a faulty pressure washer pump. The most common is a leak, pulsating output pressure, and low output pressure. Leaks are often caused by a worn or damaged pump seal. A pulsating pressure indicates that there is not enough water in the pump.
What does the thermal release valve do on a pressure washer?
Thermal Relief Valve protects pressure washer pumps operating in a safe temperature range to prevent overheating. When water temperature reaches above 145º F, pump seals may fail. The thermal relief valve will open to release hot water and allow cold water to enter the pump.
How long can you run a pressure washer?
No matter how powerful your pressure washer might be, it’s never a good idea to leave your machine running for too long because doing so will increase the risk that it will overheat. Instead, most professionals suggest using a pressure washer in intervals of three to five minutes.
What happens if unloader valve is bad?
One of the most apparent problems with the unloader valve is less output pressure and a lower water flow. If the valve does not work correctly, the pressure washer pump will get hot, and more power is asked from the engine. If you have a gas pressure washer, you can hear more engine noise due to the higher load.