The New Powerplasma 50 question

[Kapoor]

So I'm back again seeking advice from the community. Alright so my father received his replacement model powerplasma a while back and had not gotten to use it (I believe) for a while. So we hooked it up and started cutting, but after the first cut the post flow would not turn off and wouldn't allow us to cut even though the tip was cool to the touch. After checking the setting it turns out the machine was set to continuous flow. Thus we changed it to timed flow, and turned the machine off waited a few seconds and turned it back on. When it came on the air flow was just like the post flow, and it wouldn't stop even after a few minutes (the timmer only goes to 60sec). So we don't know what's going on or why it's doing what it's doing, and would like to know if it's because of some setting somewhere else or what?

PS we're running the machine at 60psi and 21amps if you need to know that.

Thanks