Pressure Washer Check Valve Stuck

Conversely if the unloader valve won t close water pressure to the spray nozzle decreases drastically.

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. From the outlet hose the water passes through the pressure washer gun and out the pressure nozzle. In this video we teach you how to properly disassemble repair and reassemble a pressure cl. Get it as soon as mon aug 24.

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. If the check valves are damaged the pump won t build pressure. 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. When the pressure washer gun trigger is depressed the pressurized water leaves the power pump and exits through the outlet valve and outlet hose.

Guns and nozzles are the most commonly replaced parts of a pressure washer system. This pressure washer was one one of the machines that sat for 8 years. One of them is a sticking unloader valve. If your pressure washer is not building pressure and the engine is surging there could be a few different causes.

The gas engine pressure washer s thermal relief valve helps protect the pressure washer s pump against thermal damage. 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. I finally got around to working on it. If the pressure washer unloader valve isn t working replace it using the manufacturer approved replacement part.

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. These screws may require torx 30 bits depending on the pressure washer.