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HomeRepair HelpRepairPressure washer leaking water Repair
Pressure washer leaking water
If your pressure washer is leaking water, start at the pump. A worn or damaged pressure washer pump assembly is the most likely cause, especially on a machine that is several years old and used often. Replace the pump assembly in that case. If the pump is newer or the washer sees limited use, you may be able to rebuild the pump and replace its pump seals instead. A pressure washer leaking from the pump can also point to a failed pressure washer pump, damaged pump seals, or another internal pump component, so inspect the assembly closely for the source. The next likely cause is the thermal release valve. This valve is designed to open and discharge hot water when the washer is left running without spraying, preventing excessive pump temperature. In that situation, the leak may be normal operation, not a failed part. Shut the machine off when you are not spraying, and replace the thermal release valve if it leaks continuously. Enter your model number to find the exact replacement pump assembly, pump, seals, or valve for your specific pressure washer.
01 - Pump
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.
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02 - 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.
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03 - Thermal Release Valve
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.
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Frequently Asked Questions
Why is my pressure washer leaking water from the bottom?
Is a pressure washer leaking water from the thermal release valve normal?
How do I know if the pressure washer pump is leaking?
What should I check before replacing a leaking pressure washer pump?
How do I find the correct replacement part for a leaking pressure washer?