I bought this pressure washer (rigid 3000psi 2.6gpm with subaru gas engine) not quite 2 years ago. The on off switch quit working so I just disconnected it and shut it off by shuttting off the fuel. Now if it even gets damp it shuts down and will not run more than an hour. Any suggestions? I love the machine it's great when working. Please reply rohearn@cenhud.com. Thank you