Pressure Washer Check Valve Stuck

The unloader valve reduces water pressure within the pressure washer pump when the pump runs but the spray wand isn t used by recirculating water to the pump inlet.

Pressure washer check valve stuck.

These screws may require torx 30 bits depending on the pressure washer. I finally got around to working on it. If the valve sticks in the closed position the thermal relief valve frequently discharges hot water onto the ground because the unloader valve can t open to allow recirculation. Pressure washer check valves let enough water flow through the pump and manifold to pressurize the water at the nozzle.

If the check valves are damaged the pump won t build pressure. This pressure washer was one one of the machines that sat for 8 years. How to do a valve repair on your pressure cleaner. If your pressure washer is not building pressure and the engine is surging there could be a few different causes.

Guns and nozzles are the most commonly replaced parts of a pressure washer system. One of them is a sticking unloader valve. From the outlet hose the water passes through the pressure washer gun and out the pressure nozzle. The gas engine pressure washer s thermal relief valve helps protect the pressure washer s pump against thermal damage.

When the pressure washer gun trigger is depressed the pressurized water leaves the power pump and exits through the outlet valve and outlet hose. Get it as soon as mon aug 24. Air in the inlet water supply can damage the check valves as can chemical residue left in the pump. More buying choices 6 56 2 used new offers free shipping on your.

If the valve sticks in the closed position the thermal relief valve frequently discharges hot water onto the ground because the unloader valve can t open to allow recirculation. Conversely if the unloader valve won t close water pressure to the spray nozzle decreases drastically. The unloader valve reduces water pressure within the pressure washer pump when the pump runs but the spray wand isn t used by recirculating water to the pump inlet.