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Troy Bulilt Pressure washer with no pressure

Troy Build 2500 PSI pressure washer. The unit will operate when cold.
The Thermal Relirf Valve kicks on after about 10 minutes of use. When this occurrs the pump provides no spray rendering the machine useless. Water streams out of the thermal releaf valve.

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Sounds like the spring that hold the relief ball is to soft and when heated it releases..if it has a manual adjustment on it you might try to add a few turns to increase the spring pressure also check and make sure the pump has the proper level of oil in it ..if it is low in oil it will run extremely hot and the relief spring will fail

Posted on May 27, 2009

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