For a pressure washer with reliable pump, ... the AR North America Seal Kit from Amazon as a reliable option for replacing worn-out seals in many pressure washer models. 7. Faulty unloader valve.

Nathan says 'First, purchase a new seal kit that is compatible with your pressure washer model. Then, disassemble the pump: ... readjust or replace the unloader valve governing the water pressure.' 7.

Inside this frame is a 1.9-horsepower electric motor, high-pressure pump, unloader valve, and other necessary controls. The pump puts out 1,350 psi of pressure, which is more than enough to remove ...