Steele Gas pressure washer Parts — Browse All Models

How to replace a Steele gas pressure washer unloader valve

• Pull the spark plug wire off the spark plug on the pressure washer engine.
• Use an open-end wrench to turn the unloader valve counter-clockwise to remove.
• Install the O-ring from the kit on the new unloader valve. Lubricate the O-ring on the new unloader valve with silicone lubricant. Thread the new unloader valve into the pump and tighten.
• Reconnect the spark plug wire to the spark plug on the engine.

Common replacement parts for Steele gas pressure washers

• Unloader valve. When you let go of the trigger on the wand, the unloader valve opens to recirculate pressurized water to the pump, so the water won't overhead and damage the pump. If the unloader valve clogs or won’t open, the thermal release valve opens and sprays steamy water from the pump. Conversely, if the unloader valve won’t close, water pressure to the spray nozzle decreases drastically. If the pressure washer unloader valve isn’t working, replace it.
• Thermal relief valve. The thermal relief valve protects the pump from overheating. If the spray wand is unused for more than 5 minutes while the pump is running, the pressurized water heats up quickly. If the water gets too hot, the thermal relief valve opens to prevent damage to the pump. The thermal relief valve closes once the water temperature is cooler.
• Spray tip. The spray tip connects to the end of the spray wand. The spray tip restricts water flow and creates a spray pattern. An assortment of spray tips is usually provided with the pressure washer.
• Pressure hose. The pressure hose connects the pump to the spray wand. The pressure hose carries the pressurized water safely from the pump to the spray wand.