Amazon plasma cutter caught fire

Plymouth 65 said
Did you have it grounded and air pressure on, what was your current setting? Sum ting wong there! 65'

It went wrong fast lemme tell ya. 12 amps, 65 psi air, grounded to workpiece but I hadn't touched it yet. Fried testing the pilot function into the air. Air pressure might've been off but it's what the manual shows