Warning puffs of air

The following happens on SmartSYNC® hand torches the first time that you try to fire the torch after moving the torch-lock switch to the yellow lock (X) position and then back to the green "ready to fire" position:

1	The plasma arc does not fire.
2	The torch quickly puts out multiple puffs of air. You can feel a light tap in the torch handle with each puff of air.
3	The plasma power supply makes a pressure-release sound that you can hear with each puff of air.

This feedback is a warning. It does not identify a fault condition. It tells you that the torch is unlocked and will fire a plasma arc the next time that you pull the trigger.