Questionpressure is fine when running, electric motor works good, but recently will not shut off when it is turned on , it use to turn off when the trigger on the hose was released , turn back on when you needed pressure, now it just runs, hit the trigger , sprays fine , let go of trigger keeps running
Any ideas
AnswerThere must be a pressure switch on the pump that makes contact with an electric switch. I suspect the pressure switch has an o-ring or a plastic piston. The o-ring may need to be lubricated.
There is a You Tube video showing the pump dis-assembly.
http://www.youtube.com/watch?v=ysxsEE7-1-Q
Another good video:
http://www.youtube.com/watch?v=UFXSLOBL0Mg
Take a look at the videos and see if they help.
Eric