Shut-off lock is partially engaged. Squeeze shut-off lever all the way down and push the trigger lock towards the nozzle to unlock (See Figure 6).
Dirt or debris in the shut-off valve. The valve is located inside the handle, so the first step is to depressurize the sprayer and release all liquid from the wand. Then unscrew and remove the shut-off assembly from the black rubber grip and hose (See Figure 7). It will come apart right above the section that reads “FILTER”. Remove the white filter inside the handle and flush with clean, cold water to remove any debris. Then flush cold water through the shut-off poppet (metal rod located within yellow nut). Press the shut-off lever (like you would as if you were spraying) for the poppet to open and allow the water to flow through. Lastly run cold water through the handle and hose.
Damaged o-ring or seal in shut-off. If the steps above haven’t solved the issue, the o-rings or seals could be damaged and need to be replaced by ordering the shut-off service kit. *
