Pressure Relief Valve Leaking On Pressure Washer

In either case start by replacing the pressure relief valve using a different brand in case the valve itself is defective.

Pressure relief valve leaking on pressure washer.

If the temperature and pressure within the boiler are in the normal range and the pressure relief valve is leaking it is a sign the valve is defective. The thermal release valve is a fairly cheap component and can be easily replaced by unscrewing the old valve and screwing in a new one. The seal on the thermal release valve like most seals on the pump will wear with. Safety pressure relief valves ever seen a pump explode.

If the thermal release valves seal is compromised it may continuously leak water and cause the washer to lose pressure. More buying choices 19 18 14 new offers homelite new 1 4 thermal release relief valve for pressure washer water pumps by the rop shop. Only 5 left in stock order soon. From there the valve that is at the very bottom will need to be opened up.

When the water temperature rises above the acceptable limit the thermal. Replace a defective leaking valve right away. If the pressure washer runs for more than 5 minutes when the spray wand isn t in use the water in the pump often overheats causing the thermal relief valve to open and discharge hot water onto the ground. This will allow your pressure relief valve to be opened up so that it will have a chance to drain the water out of your tank.

The pressure washer is left running while it is not spraying water the water in the pump will begin to heat up. The leak could be due to the normal operation of the thermal release valve. That depends on whether the pressure relief valve is leaking around the threads where it attaches to the hot water tank or if it is leaking out of the inside of the valve itself. The thermal release valve allows hot water to exit the pressure washer if the water temperature becomes excessively high.

Oem 5140095 85 replacement pressure washer valve thermal relief dh4240 for dewalt. This valve functions is as a safety backup to the unloader valve. Extreme pressure within the system could cause the boiler or water lines to rupture. You are now ready to get your overflow pipe removed from your pressure relief valve.

Step 4 overflow pipe removal. 4 7 out of 5 stars 11.