How does a pressure washer unloader valve work?
Essentially, an unloader valve is a safety switch. It sends pressurized water into a by-pass by cycling it from the outlet side of the pump to an inlet or water tank. This process depressurizes the water and prevents pressure from building up while the pressure washer machine is idling.
How do you know if you have a bad unloader valve?
When the unloader valve of the pressure washer fails, certain signs can be seen. 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.
How do you know if your unloader valve is bad?
What does an unloader valve do on a pressure washer?
Pressure Washer Unloader / Regulator Valves. 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 to troubleshoot a pressure washer?
Soap dispenser doesn’t work. The wrong nozzle is connected. Connect the soap nozzle (usually black).
How to regulate, adjust the pressure of an unloader?
Starting from an empty tank. Start the compressor and let it run until it reaches the cut-out pressure.
How to diagnose low pressure on a pressure washer?
Low pressure