If your Echo pressure washer is leaking water, the pump assembly is the most likely source. A worn pump assembly can leak through damaged pump seals, especially on a machine that is more than a few years old or used often. Replace the pump assembly when wear is extensive; if the pump is relatively new and used only occasionally, rebuilding the pump or replacing its seals may solve the problem. A worn pump itself can cause the same symptom, so inspect the pump head, pump manifold, pump seals, pump o-rings, and related fittings for cracks or deterioration. Another possible cause is the thermal release valve. This valve normally opens when water trapped in the pump becomes too hot, allowing hot water to escape. That can happen when the pressure washer is left running while you are not spraying. In other words, a pressure washer leaking from the pump is not always a failed part, but continued leaking after the unit cools points to pump or seal damage. Disconnect water and power before inspection, then enter your model number to find the exact replacement part for your Echo pressure washer.
01 - Echo Pressure Washer Pump Assembly
You may need to rebuild or replace the pump assembly. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump assembly. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump assembly or replace the pump seals.
Enter model number to search for the required part specific to your product
You may need to rebuild or replace the pump. If the pump is more than a few years old, and you use the pressure washer fairly often, replace the pump. If the pump is relatively new, and you don’t use the pressure washer often, either rebuild the pump or replace the pump seals.
The leak could be due to the normal operation of the thermal release valve. The thermal release valve allows hot water to exit the pressure washer if the water temperature becomes excessively high. If the pressure washer is left running while it is not spraying water, the water in the pump will begin to heat up. When the water temperature rises above the acceptable limit, the thermal release valve opens to allow the hot water to exit the pressure washer.