Gas solenoid wiring syncrowave 350 (1989)

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Hi all, I recently purchased an 89' syncrowave 350. I'm not getting gas flow and am pretty sure the solenoid isn't getting power. I could use some help to figure it out. I've checked for power across the two terminals on the solenoid with no luck. I can't hear an audible click or anything with the remote pedal pressed. I could really use a picture of a good working one to see how to wire it. Mine has a wire from the 120 power receptacle to the top connection on the solenoid where it is combined with two small guage wires that I think come from the remote pedal or whatever triggers the solenoid to ground? The lower connection on the solenoid has only a very thin wire with two resistors or something in line that connects to the upper connection and has one open spade for a butt joint connector. I think this open connection point is where I need 120. Any help is appreciated.
Reply:Update: I disconnected all the small guage wires so I wouldn't damage the circuit board while testing the relay. Then I hooked up 120 positive to the lower connection on the solenoid and now it works. BUT now I need to reconnect the small guage wires so the machine triggers the solenoid instead of having it hard wired. The fear is that I could hurt the circuit board if I hook up those small wires so I still need ya'lls help. Thanks.
Reply:

Originally Posted by Metal gluer

Update: I disconnected all the small guage wires so I wouldn't damage the circuit board while testing the relay. Then I hooked up 120 positive to the lower connection on the solenoid and now it works. BUT now I need to reconnect the small guage wires so the machine triggers the solenoid instead of having it hard wired. The fear is that I could hurt the circuit board if I hook up those small wires so I still need ya'lls help. Thanks.
Reply:Here is a link to the wiring diagram. https://www.millerwelds.com/files/ow.../O352B_MIL.pdfThe solenoid is labeled as gs-1, it shows 2 wires going to a controlling unit, i think, controled by either the pcb or pedal and those are labeled as plg1-1 and plg1-3 respectively as the diagram shows. The other side of gs1 is labeled 4A and goes to the common or ground side of the 115v receptacle. On my machine that wire (115v common) is combined with the 2 control wires. And on the other side of the solenoid I wired 115v positive from the receptacle, this holds the solenoid on when the welder is on. I disconnected the two wires that control the gas timing to test the solenoid and now that I know it works I need to re connect the control wires and the resisted wire that interconnects the positive and negative on the solenoid, shown as c6 and r9 on the diagram. I think the control wires go on the common side of the solenoid but I don't want to damage the pcb if I'm wrong. How should it be wired? The electrical diagram dosnt show a power source to gs1? I'm not a super diagram reader. I can't figure out how to post a photo in my reply from my phone. Am I missing something obvious?
Reply:Also I don't think the HF affects gas flow per my earlier research. In my experience with well engineerd things the ground or common circuit is where the controlling happens when a circuit board is involved. Thanks ya'll.