When your Troy-Bilt pressure washer is leaking water, the pump assembly is the most likely cause. A worn pump assembly can leak around the pump seals, pump o-rings, or other internal components. If you use the pressure washer often and the pump is more than a few years old, replacing the complete pump assembly is usually the most practical repair. On a newer machine used less frequently, you may be able to rebuild the pump or replace the pump seals instead. A worn or damaged pump can also cause water to leak from the pump or the bottom of the pressure washer. The next likely cause is the pump itself, which may require rebuilding or replacement if internal parts are damaged. If the leak appears only after the washer has been running without spraying, the thermal relief valve may be operating normally. This valve releases overheated water when water sits in the pump too long. Shut off the machine and avoid leaving it running with the trigger released. Enter your model number to find the exact replacement pump, pump seals, or thermal relief valve for your Troy-Bilt pressure washer.
01 - Troy-Bilt 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.