Some brands have additional resources that can help with troubleshooting pressure washer problems, like repair videos and parts finders. Review the parts diagram below to learn the basics, but keep in mind, the exact breakdown of any pressure washer will vary between models. If you’ve never worked on a pressure washer before, it’s helpful to understand how it works before you start troubleshooting. Pull the trigger on the spray gun to ignite. Pulsing pressureĪdjust the thermostat to a higher temperature. Something is leaking water or pressure.Ĭheck for obvious leaking from the pump or any of the accessories and fix it if you can. Repair the pump if you can, otherwise contact the manufacturer.ĩ. The unloader valve isn’t set correctly.Īdjust the valve to build more pressure (the exact method varies by model, but usually it’s a knob).Īdjust the power if you can, otherwise contact the manufacturer. Clean accordingly.Ĭonnect a higher pressure nozzle (from low to high: black, white, green, yellow, red).ĥ. One by one, check the high pressure hose, spray gun and nozzle for blockage. Clean it if you can, otherwise replace it with a new one. Make sure the garden hose has enough water pressure and flow for the requirements of the pump.Ĭheck the inlet filter for dirt or damage. Make sure the circuit has enough amperage for the requirements of the motor.
The circuit isn’t powerful enough (low amperage). Wait a few minutes for the motor to cool down, then press the overload reset button.ġ5. Restore power to the outlet (there are several reasons it could be off), or just use a different one.
Plug the power cord into a working outlet. (electric-start systems)Ĭharge the battery (and make sure the cables have a clean and secure connection). Clean it if you can, otherwise replace it with a new one.ĩ. Make sure the wire has a clean and secure connection (there may be dirt preventing contact).Ĭheck the condition of the carb.
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