Argon arc welding machine automatic leakage, how to repair?
Could you explain in detail where the leak is?
Change the solenoid valve slightly
First of all, the power off state, look, out of breath Two cases. First, vent, OK, you're lucky, but the solenoid valve is broken. Change a few tens of dollars. Two, do not vent the gas, the circuit is out of order, you need some electrical knowledge. 1, check line, along the two lines of solenoid valve to the circuit board, control its relay, replace it. If it's not good, then if you're a little level, you'll continue to know how to do it at this step. If you don't know, then I'll say yes. Recommend professional maintenance.
