Unit strikes an arc then wont weld red led light on the field controll board comes on resets if shut machine off but does it again after restart
SOURCE: machine u can plug a
Hi, this symptom is indicative of a Power supply problem, and it is trying to start, and shuts down, and then tries to start again, the PSU is either itself faulty, or some "Other" component is faulty, and causing too much current draw, and the PSU, then attempts to shut down. The motor working, isn't that relevant, as the motor drive circuit is separate from the actual welding electronics so to speak. And may or may not work, has no real bearing on the actual welding electronics.
Honestly though, unless you have experience with these or other units, and welding electronics, really the best thing you can do, and it WILL work out less expensive, and less of a hassle, is to contact a Hobart repair center, and have them give you a "Quote" for the repair.
The only "Other" alternative, is to use the "Shotgun" approach to repair and swap boards, with the hope of getting lucky and actually repairing it. Ensure you DO isolate the actual l"Fault" though, otherwise, you may simply "Blow Up" the "Replacement" board(s). Obtaining a service manual, for your exact make and model, would be a great benefit if DIY was the way to go.
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