Excell Pressure Washer

tomdorrSeptember 12, 2010

I have a XR2500 that is about 8 yrs old and has done a good job. Last year the thermal valve blew and I bought a new one for about 30 bucks. I used it about 5 times and this one blew. On the web some parts schematics show a new model valve and some show a plug with the notation that the valve is no longer needed. Wondering is one is really needed. This one blew after about 30 seconds of no water running thru the hose. Seems a little "touchy" to me.

Thanks

Thank you for reporting this comment. Undo
den69rs96(z6CT)

Never run your pw with no water running through it or you will damage your pump as you experienced. The water coming in from the garden hose also cools the pump. If you let your pw run without pulling the trigger, the water gets hot. Once it reaches a certain temp, the thermal relief valve opens to let cooler water in. Same concept as the cooling system in your car except the thermal relief valve is the thermastat. If you run your car with no coolant or if the thermastat fails to open, it will overheat rather quickly.

    Bookmark   September 16, 2010 at 9:21AM
Sign Up to comment
More Discussions
Testing the new format X allowing multiple attachments.
I am back to two Lexan chain guides due to a chain...
loger_gw
Dewalt 3800 pressure washer, open hole between pump and engine.
Hi, I just bought a dewalt 3800 pressure washer gx...
ron111
Snow Thrower impeller
I have a Craftsman 9 hp dual stage snow thrower, that...
fjs001
Primer not getting Gas?? After Carb Rebuid?
I just rebuilt a couple snow blower Carbs (both Tecumseh...
bertman_gw
Craftsman Snowblower Recall
Did anyone else receive a recall notice in the mail...
pjrsjr
© 2015 Houzz Inc. Houzz® The new way to design your home™