volkman 14 Report post Posted March 19, 2010 Got a stupid question, but it has me stumped. Have a 220v hot water pressure washer. Not getting any diesel to flow to nozzle. I have changed the fuel solenoid, fuel pump, filter and nozzle. Does the pressure switch control the fuel or the ignitor? Or do you have any other ideas what I'm doing wrong. Thanks in advance. Share this post Link to post Share on other sites
Doug T 19 Report post Posted March 19, 2010 pressure switch normally controls the solenoid, I would suspect that is your problem. Normally the thermostat, pressure switch and overtemp protector are in series and if any one of them opens it cuts power to the solenoid Share this post Link to post Share on other sites
Jerry 24 Report post Posted March 23, 2010 (edited) Generic schematic diagram of burner circuitry is available. free. ..and did y'all know there's another filter INSIDE the fuel pimp ?? But before you go there, get a fuel pressure guage on the fuel pump, and prove correct fuel pressure. Did the heater smoke before it quit completely ?? is it leaking fuel ?? you should 'autta call. We're glad to help Edited March 23, 2010 by Jerry spellliiing Share this post Link to post Share on other sites
